Harden privileged command operands against injection

Validate chpasswd user:password fields, refuse deleting root or the
current user, and pipe charge-threshold writes through tee stdin.
Allowlist firewall rules, systemd units, AUR names, hostname, and
timezone. Keep CalDAV passwords write-only like restic.

frontend/src/lib/nav.ts

@@ -0,0 +1,3 @@
+/** Sidebar page switch. Set from +page.svelte; views call it to jump. */
+export type Navigate = (page: string) => void;
+export const NAVIGATE_KEY = "bos-settings-navigate";

frontend/src/lib/sidebar.ts

@@ -31,6 +31,16 @@ import Lock from "@lucide/svelte/icons/lock";
 import Camera from "@lucide/svelte/icons/camera";
 import AppWindow from "@lucide/svelte/icons/app-window";
 import CircleHelp from "@lucide/svelte/icons/circle-help";
+import Download from "@lucide/svelte/icons/download";
+import Printer from "@lucide/svelte/icons/printer";
+import ShieldEllipsis from "@lucide/svelte/icons/shield-ellipsis";
+import Moon from "@lucide/svelte/icons/moon";
+import Languages from "@lucide/svelte/icons/languages";
+import Accessibility from "@lucide/svelte/icons/accessibility";
+import AppWindowMac from "@lucide/svelte/icons/app-window-mac";
+import GitBranch from "@lucide/svelte/icons/git-branch";
+import Archive from "@lucide/svelte/icons/archive";
+import Boxes from "@lucide/svelte/icons/boxes";
 
 export interface SidebarItem {
 	/** Must match a key in the view component map (see routing in +page.svelte). */
@@ -45,15 +55,20 @@ export interface SidebarItem {
 export const SYSTEM_ITEMS: SidebarItem[] = [
 	{ id: "network", label: "Network", icon: Wifi },
 	{ id: "breadcrumbs", label: "Wi-Fi Profiles", sublabel: "breadcrumbs", icon: Network },
+	{ id: "vpn", label: "VPN / WireGuard", sublabel: "NetworkManager", icon: ShieldEllipsis },
 	{ id: "bluetooth", label: "Bluetooth", icon: Bluetooth },
+	{ id: "printing", label: "Printing", sublabel: "CUPS", icon: Printer },
 	{ id: "firewall", label: "Firewall", icon: Shield },
 	{ id: "sound", label: "Sound", icon: Volume2 },
 	{ id: "power", label: "Power", icon: BatteryFull },
 	{ id: "datetime", label: "Date & Time", icon: Clock },
 	{ id: "hyprland", label: "Display", sublabel: "monitors.json", icon: Monitor },
+	{ id: "nightlight", label: "Night light", sublabel: "hyprsunset", icon: Moon },
 	{ id: "breadmon", label: "Monitors", sublabel: "breadmon", icon: AppWindow },
 	{ id: "breadlock", label: "Lock & greet", sublabel: "breadlock", icon: Lock },
 	{ id: "keybinds", label: "Keybinds", sublabel: "binds.json", icon: Keyboard },
+	{ id: "ime", label: "Input method", sublabel: "fcitx5", icon: Languages },
+	{ id: "accessibility", label: "Accessibility", icon: Accessibility },
 	{ id: "breadshot", label: "Screenshots", sublabel: "breadshot", icon: Camera },
 	{ id: "autostart", label: "Startup Apps", sublabel: "autostart.json", icon: Rocket },
 	{ id: "users", label: "Users", icon: Users },
@@ -67,14 +82,19 @@ export const PERSONALIZATION_ITEMS: SidebarItem[] = [
 	{ id: "breadclip", label: "Clipboard", sublabel: "breadclipd", icon: Clipboard },
 	{ id: "breadpad", label: "Notes", sublabel: "breadpad", icon: NotebookPen },
 	{ id: "breadsearch", label: "File Search", sublabel: "breadsearch", icon: Search },
+	{ id: "defaults", label: "Default apps", sublabel: "mimeapps.list", icon: AppWindowMac },
 	{ id: "bread", label: "Daemon", sublabel: "breadd", icon: Cog },
 ];
 
 export const MAINTENANCE_ITEMS: SidebarItem[] = [
+	{ id: "updates", label: "Updates", icon: Download },
 	{ id: "packages", label: "Packages", icon: Package },
 	{ id: "aur", label: "AUR", icon: Search },
 	{ id: "firmware", label: "Firmware", icon: RefreshCw },
 	{ id: "snapshots", label: "Snapshots", icon: History },
+	{ id: "channel", label: "Bakery channel", sublabel: "track", icon: GitBranch },
+	{ id: "backup", label: "Backup", sublabel: "restic", icon: Archive },
+	{ id: "optional", label: "Optional software", icon: Boxes },
 ];
 
 export const ABOUT_ITEMS: SidebarItem[] = [

frontend/src/lib/views/Accessibility.svelte

@@ -0,0 +1,197 @@
+<script lang="ts">
+	import { onMount } from "svelte";
+	import { invoke } from "@tauri-apps/api/core";
+	import { runStreamed } from "$lib/streaming";
+	import ViewScaffold from "$lib/components/ViewScaffold.svelte";
+	import Group from "$lib/components/Group.svelte";
+	import Hint from "$lib/components/Hint.svelte";
+	import NumberField from "$lib/components/NumberField.svelte";
+	import LogView from "$lib/components/LogView.svelte";
+
+	interface A11yStatus {
+		orca_installed: boolean;
+		orca_running: boolean;
+		zoom_factor: number;
+		sticky_keys_supported: boolean;
+		slow_keys_supported: boolean;
+		kmag_installed: boolean;
+		note: string;
+	}
+
+	let st = $state<A11yStatus | null>(null);
+	let zoom = $state(1);
+	let log = $state<string[]>([]);
+	let busy = $state(false);
+	let message = $state("");
+
+	async function refresh() {
+		st = await invoke<A11yStatus>("get_a11y_status");
+		zoom = st.zoom_factor;
+	}
+
+	onMount(refresh);
+
+	async function install(packages: string[]) {
+		log = [];
+		busy = true;
+		await runStreamed("pacman_install", { packages }, (line) => {
+			log = [...log, line];
+		});
+		busy = false;
+		await refresh();
+	}
+
+	async function toggleOrca(running: boolean) {
+		message = "";
+		try {
+			await invoke("set_orca_running", { running });
+			await refresh();
+		} catch (e) {
+			message = `${e}`;
+		}
+	}
+
+	async function applyZoom() {
+		message = "";
+		try {
+			zoom = await invoke<number>("set_cursor_zoom", { factor: zoom });
+		} catch (e) {
+			message = `${e}`;
+		}
+	}
+
+	async function openKmag() {
+		message = "";
+		try {
+			await invoke("open_kmag");
+		} catch (e) {
+			message = `${e}`;
+		}
+	}
+</script>
+
+<ViewScaffold title="Accessibility">
+	<Group title="Screen reader" hint="Orca. Works on Wayland; start/stop is process-level, not a compositor setting.">
+		{#if !st}
+			<Hint text="Loading…" />
+		{:else if !st.orca_installed}
+			<Hint text="orca is not installed." />
+			<button class="primary" disabled={busy} onclick={() => install(["orca"])}>Install orca</button>
+		{:else}
+			<div class="row-switch">
+				<span>Orca</span>
+				<button
+					class="switch"
+					class:on={st.orca_running}
+					role="switch"
+					aria-checked={st.orca_running}
+					aria-label="Orca"
+					onclick={() => toggleOrca(!st!.orca_running)}
+				>
+					<span class="knob"></span>
+				</button>
+			</div>
+		{/if}
+	</Group>
+
+	<Group title="Magnifier" hint="Hyprland’s real magnifier is cursor:zoom_factor — pointer-centered zoom. Applies to this session.">
+		{#if st}
+			<NumberField label="Zoom factor" bind:value={zoom} min={1} max={8} step={0.25} />
+			<button class="primary" onclick={applyZoom}>Apply zoom</button>
+			<Hint text="1.0 is off. Values above 1 enlarge around the cursor." />
+			{#if !st.kmag_installed}
+				<Hint text="kmag is a separate KDE magnifier and is not wired into Hyprland. Optional install only." />
+				<button disabled={busy} onclick={() => install(["kmag"])}>Install kmag</button>
+			{:else}
+				<button onclick={openKmag}>Open kmag</button>
+			{/if}
+		{/if}
+	</Group>
+
+	<Group title="Sticky keys / Slow keys">
+		{#if st}
+			<div class="row-switch disabled">
+				<span>Sticky keys</span>
+				<button class="switch" disabled role="switch" aria-checked="false" aria-label="Sticky keys">
+					<span class="knob"></span>
+				</button>
+			</div>
+			<div class="row-switch disabled">
+				<span>Slow keys</span>
+				<button class="switch" disabled role="switch" aria-checked="false" aria-label="Slow keys">
+					<span class="knob"></span>
+				</button>
+			</div>
+			<Hint text={st.note} />
+		{/if}
+	</Group>
+	{#if message}<Hint text={message} />{/if}
+	<LogView lines={log} />
+</ViewScaffold>
+
+<style>
+	.row-switch {
+		display: flex;
+		align-items: center;
+		justify-content: space-between;
+		background-color: var(--surface);
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-md, 12px) var(--space-lg, 16px);
+		margin-bottom: var(--space-sm, 8px);
+	}
+
+	.row-switch.disabled {
+		opacity: 0.55;
+	}
+
+	.switch {
+		width: 40px;
+		height: 22px;
+		flex-shrink: 0;
+		border-radius: 999px;
+		border: none;
+		background-color: var(--overlay);
+		padding: 2px;
+		cursor: pointer;
+		display: flex;
+		align-items: center;
+	}
+
+	.switch.on {
+		background-color: var(--accent);
+		justify-content: flex-end;
+	}
+
+	.switch:disabled {
+		cursor: not-allowed;
+	}
+
+	.knob {
+		width: 18px;
+		height: 18px;
+		border-radius: 50%;
+		background-color: var(--on-surface);
+		display: block;
+	}
+
+	button {
+		background-color: var(--surface);
+		color: var(--on-surface);
+		border: none;
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-xs, 4px) var(--space-md, 12px);
+		cursor: pointer;
+		align-self: flex-start;
+		margin-top: var(--space-xs, 4px);
+	}
+
+	button.primary {
+		background-color: var(--accent);
+		color: var(--on-accent);
+	}
+
+	button:disabled {
+		opacity: 0.5;
+		cursor: default;
+	}
+</style>

frontend/src/lib/views/Backup.svelte

@@ -0,0 +1,254 @@
+<script lang="ts">
+	import { onMount } from "svelte";
+	import { invoke } from "@tauri-apps/api/core";
+	import { runStreamed } from "$lib/streaming";
+	import ViewScaffold from "$lib/components/ViewScaffold.svelte";
+	import Group from "$lib/components/Group.svelte";
+	import Hint from "$lib/components/Hint.svelte";
+	import TextField from "$lib/components/TextField.svelte";
+	import FileField from "$lib/components/FileField.svelte";
+	import PasswordField from "$lib/components/PasswordField.svelte";
+	import SaveButton from "$lib/components/SaveButton.svelte";
+	import EmptyState from "$lib/components/EmptyState.svelte";
+	import LogView from "$lib/components/LogView.svelte";
+	import Archive from "@lucide/svelte/icons/archive";
+
+	interface ResticSnapshot {
+		id: string;
+		time: string;
+		paths: string[];
+	}
+	interface BackupStatus {
+		restic_installed: boolean;
+		repo: string;
+		has_password: boolean;
+		snapshots: ResticSnapshot[];
+		error: string | null;
+		home: string;
+	}
+
+	let st = $state<BackupStatus | null>(null);
+	let repo = $state("");
+	let password = $state("");
+	let snapshots = $state<ResticSnapshot[]>([]);
+	let selected = $state("latest");
+	let restoreTarget = $state("");
+	let lastAutoTarget = $state("");
+	let log = $state<string[]>([]);
+	let busy = $state(false);
+	let message = $state("");
+
+	function defaultTarget(id: string): string {
+		const home = st?.home ?? "";
+		if (!home) return "";
+		return `${home}/bos-restore-${id || "latest"}`;
+	}
+
+	$effect(() => {
+		if (!st?.home) return;
+		const auto = defaultTarget(selected || "latest");
+		if (restoreTarget === "" || restoreTarget === lastAutoTarget) {
+			if (restoreTarget !== auto) restoreTarget = auto;
+			if (lastAutoTarget !== auto) lastAutoTarget = auto;
+		}
+	});
+
+	async function refresh() {
+		st = await invoke<BackupStatus>("get_backup_config");
+		repo = st.repo;
+	}
+
+	onMount(refresh);
+
+	async function save() {
+		await invoke("save_backup_config", { input: { repo, password: password || null } });
+		password = "";
+		await refresh();
+	}
+
+	async function installRestic() {
+		log = [];
+		busy = true;
+		await runStreamed("pacman_install", { packages: ["restic"] }, (line) => {
+			log = [...log, line];
+		});
+		busy = false;
+		await refresh();
+	}
+
+	async function run(command: string, args: Record<string, unknown> = {}) {
+		log = [];
+		busy = true;
+		message = "";
+		const ok = await runStreamed(command, args, (line) => {
+			log = [...log, line];
+		});
+		busy = false;
+		if (!ok) message = "Command failed — see the log.";
+	}
+
+	async function listSnaps() {
+		message = "";
+		try {
+			snapshots = await invoke<ResticSnapshot[]>("list_restic_snapshots");
+			if (snapshots.length === 0) message = "No snapshots in this repo yet.";
+		} catch (e) {
+			message = `${e}`;
+			snapshots = [];
+		}
+	}
+
+	async function restore(dryRun: boolean) {
+		const snap = selected || "latest";
+		const target = restoreTarget.trim() || defaultTarget(snap);
+		const home = st?.home ?? "";
+		if (!dryRun && home && (target === home || target === `${home}/`)) {
+			message = "Refusing to restore onto $HOME. Leave the default ~/bos-restore-<id> or pick another folder.";
+			return;
+		}
+		if (!dryRun) {
+			const ok = confirm(
+				`Restore snapshot ${snap} into ${target}?\n\nFiles go into that directory. Your live home is not overwritten.`,
+			);
+			if (!ok) return;
+		}
+		await run(dryRun ? "restic_restore_dry_run" : "restic_restore", {
+			snapshot: snap,
+			target,
+		});
+	}
+</script>
+
+<ViewScaffold title="Backup">
+	<Group
+		title="Repository"
+		hint="restic to a local directory or sftp:user@host:/path. Path and password are stored in ~/.config/bos-settings/backup.toml (mode 0600). The password field is write-only."
+		wide
+	>
+		{#if !st}
+			<Hint text="Loading…" />
+		{:else if !st.restic_installed}
+			<Hint text="restic is not installed." />
+			<button class="primary" disabled={busy} onclick={installRestic}>Install restic</button>
+		{:else}
+			<FileField label="Local path" bind:value={repo} mode="folder" placeholder="/mnt/backup/bos" />
+			<TextField label="Or SFTP" bind:value={repo} placeholder="sftp:user@host:/backups/bos" />
+			<PasswordField label={st.has_password ? "Password (leave empty to keep)" : "Password"} bind:value={password} />
+			<SaveButton onSave={save} />
+		{/if}
+	</Group>
+
+	<Group
+		title="Actions"
+		hint="This backs up your @home life — documents, configs, the stuff snapper does not. Snapshots on the Snapshots page are root (@) only. Skips caches, Trash, Steam, containers, cargo/rustup, Flatpak, node_modules, target, and .git."
+	>
+		<div class="btn-row">
+			<button disabled={busy} onclick={() => run("restic_init")}>Init repo</button>
+			<button class="primary" disabled={busy} onclick={() => run("restic_backup")}>Backup home</button>
+			<button disabled={busy} onclick={listSnaps}>List snapshots</button>
+		</div>
+		{#if message}<Hint text={message} />{/if}
+	</Group>
+
+	<Group
+		title="Restore"
+		hint="Writes into a new folder (default ~/bos-restore-<id>). Does not overwrite $HOME. Dry-run previews the same target."
+	>
+		<FileField label="Restore into" bind:value={restoreTarget} mode="folder" placeholder="/home/you/bos-restore-latest" />
+		<div class="btn-row">
+			<button disabled={busy || !st?.restic_installed} onclick={() => restore(true)}>Restore dry-run</button>
+			<button class="primary" disabled={busy || !st?.restic_installed} onclick={() => restore(false)}>Restore</button>
+		</div>
+	</Group>
+
+	<Group title="Snapshots" wide>
+		{#if snapshots.length === 0}
+			<EmptyState icon={Archive} title="No snapshots loaded" hint="Init, backup, then list." />
+		{:else}
+			<div class="list">
+				{#each snapshots as s (s.id)}
+					<button class="row" class:selected={selected === s.id} onclick={() => (selected = s.id)}>
+						<span class="id">{s.id}</span>
+						<span class="time">{s.time}</span>
+						<span class="paths">{s.paths.join(", ")}</span>
+					</button>
+				{/each}
+			</div>
+		{/if}
+	</Group>
+	<LogView lines={log} />
+</ViewScaffold>
+
+<style>
+	.btn-row {
+		display: flex;
+		flex-wrap: wrap;
+		gap: var(--space-sm, 8px);
+	}
+
+	.list {
+		display: flex;
+		flex-direction: column;
+		gap: 6px;
+		max-height: 240px;
+		overflow-y: auto;
+	}
+
+	.row {
+		display: flex;
+		align-items: center;
+		gap: var(--space-md, 12px);
+		background-color: var(--surface);
+		border: none;
+		color: inherit;
+		font: inherit;
+		text-align: left;
+		cursor: pointer;
+		padding: var(--space-sm, 8px) var(--space-md, 12px);
+		border-radius: var(--radius-primary, 8px);
+	}
+
+	.row.selected {
+		background-color: var(--accent);
+		color: var(--on-accent);
+	}
+
+	.id {
+		width: 10ch;
+		flex-shrink: 0;
+		font-family: monospace;
+	}
+
+	.time {
+		width: 22ch;
+		flex-shrink: 0;
+		opacity: 0.85;
+	}
+
+	.paths {
+		flex: 1;
+		min-width: 0;
+		overflow: hidden;
+		text-overflow: ellipsis;
+		white-space: nowrap;
+	}
+
+	button {
+		background-color: var(--surface);
+		color: var(--on-surface);
+		border: none;
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-xs, 4px) var(--space-md, 12px);
+		cursor: pointer;
+	}
+
+	button.primary {
+		background-color: var(--accent);
+		color: var(--on-accent);
+	}
+
+	button:disabled {
+		opacity: 0.5;
+		cursor: default;
+	}
+</style>

frontend/src/lib/views/Channel.svelte

@@ -0,0 +1,127 @@
+<script lang="ts">
+	import { onMount } from "svelte";
+	import { invoke } from "@tauri-apps/api/core";
+	import { runStreamed } from "$lib/streaming";
+	import ViewScaffold from "$lib/components/ViewScaffold.svelte";
+	import Group from "$lib/components/Group.svelte";
+	import Hint from "$lib/components/Hint.svelte";
+	import LogView from "$lib/components/LogView.svelte";
+
+	interface BakeryTrack {
+		current: string;
+		tracks: string[];
+	}
+
+	const BLURBS: Record<string, string> = {
+		stable: "Last tagged release.",
+		beta: "Latest release candidate (vX.Y.Z-rc.N).",
+		dev: "Every push to main.",
+	};
+
+	let track = $state<BakeryTrack | null>(null);
+	let message = $state("");
+	let log = $state<string[]>([]);
+	let busy = $state(false);
+
+	async function refresh() {
+		try {
+			track = await invoke<BakeryTrack>("get_bakery_track");
+		} catch (e) {
+			message = `${e}`;
+		}
+	}
+
+	onMount(refresh);
+
+	async function setTrack(name: string) {
+		message = "";
+		try {
+			track = await invoke<BakeryTrack>("set_bakery_track", { track: name });
+			message = `Now on ${name}. Run bakery update --all to install this track’s builds.`;
+		} catch (e) {
+			message = `${e}`;
+		}
+	}
+
+	async function updateAll() {
+		log = [];
+		busy = true;
+		await runStreamed("bakery_update_all", {}, (line) => {
+			log = [...log, line];
+		});
+		busy = false;
+	}
+</script>
+
+<ViewScaffold title="Bakery channel">
+	<Group
+		title="Track"
+		hint="bakery track show / bakery track set. This only changes the preference — nothing is downloaded until you update."
+	>
+		{#if !track}
+			<Hint text="Loading…" />
+		{:else}
+			<div class="tracks">
+				{#each track.tracks as name (name)}
+					<button class="track" class:on={track.current === name} onclick={() => setTrack(name)}>
+						<strong>{name}</strong>
+						<span>{BLURBS[name] ?? ""}</span>
+					</button>
+				{/each}
+			</div>
+			<Hint text={`Current track: ${track.current}`} />
+		{/if}
+		<button class="primary" disabled={busy} onclick={updateAll}>Update all on this track</button>
+		{#if message}<Hint text={message} />{/if}
+	</Group>
+	<LogView lines={log} />
+</ViewScaffold>
+
+<style>
+	.tracks {
+		display: flex;
+		flex-direction: column;
+		gap: 6px;
+	}
+
+	.track {
+		display: flex;
+		flex-direction: column;
+		align-items: flex-start;
+		gap: 2px;
+		background-color: var(--surface);
+		color: inherit;
+		border: none;
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-md, 12px) var(--space-lg, 16px);
+		cursor: pointer;
+		text-align: left;
+		font: inherit;
+	}
+
+	.track span {
+		opacity: 0.7;
+		font-size: var(--font-size-secondary, 12px);
+	}
+
+	.track.on {
+		background-color: var(--accent);
+		color: var(--on-accent);
+	}
+
+	button.primary {
+		background-color: var(--accent);
+		color: var(--on-accent);
+		border: none;
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-xs, 4px) var(--space-md, 12px);
+		cursor: pointer;
+		align-self: flex-start;
+		margin-top: var(--space-sm, 8px);
+	}
+
+	button:disabled {
+		opacity: 0.5;
+		cursor: default;
+	}
+</style>

frontend/src/lib/views/Defaults.svelte

@@ -0,0 +1,104 @@
+<script lang="ts">
+	import { onMount } from "svelte";
+	import { invoke } from "@tauri-apps/api/core";
+	import ViewScaffold from "$lib/components/ViewScaffold.svelte";
+	import Group from "$lib/components/Group.svelte";
+	import Hint from "$lib/components/Hint.svelte";
+	import SaveButton from "$lib/components/SaveButton.svelte";
+
+	interface DesktopApp {
+		id: string;
+		name: string;
+	}
+	interface DefaultsStatus {
+		path: string;
+		current: Record<string, string>;
+		options: Record<string, DesktopApp[]>;
+	}
+
+	const CATEGORIES: { id: string; label: string }[] = [
+		{ id: "browser", label: "Browser" },
+		{ id: "files", label: "File manager" },
+		{ id: "terminal", label: "Terminal" },
+		{ id: "image", label: "Images" },
+		{ id: "pdf", label: "PDF" },
+		{ id: "editor", label: "Editor" },
+	];
+
+	let st = $state<DefaultsStatus | null>(null);
+
+	onMount(async () => {
+		st = await invoke<DefaultsStatus>("get_default_apps");
+	});
+
+	async function save() {
+		if (!st) return;
+		await invoke("save_default_apps", { input: { current: st.current } });
+		st = await invoke<DefaultsStatus>("get_default_apps");
+	}
+</script>
+
+<ViewScaffold title="Default apps">
+	<Group title="MIME associations" hint={st ? `Read and written at ${st.path}. Terminal also writes ~/.config/xdg-terminals.list.` : "Loading…"} wide>
+		{#if st}
+			{#each CATEGORIES as cat (cat.id)}
+				<div class="field-row">
+					<span class="label">{cat.label}</span>
+					<select bind:value={st.current[cat.id]}>
+						<option value="">—</option>
+						{#each st.options[cat.id] ?? [] as app (app.id)}
+							<option value={app.id}>{app.name}</option>
+						{/each}
+					</select>
+				</div>
+			{/each}
+			<SaveButton onSave={save} />
+		{:else}
+			<Hint text="Loading…" />
+		{/if}
+	</Group>
+</ViewScaffold>
+
+<style>
+	.field-row {
+		display: flex;
+		align-items: center;
+		gap: var(--space-lg, 16px);
+		background-color: var(--surface);
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-md, 12px) var(--space-lg, 16px);
+		margin-bottom: var(--space-sm, 8px);
+	}
+
+	:global(.field-row + .field-row) {
+		margin-top: calc(var(--space-sm, 8px) * -1);
+		border-top: 1px solid var(--bg);
+		border-top-left-radius: 0;
+		border-top-right-radius: 0;
+	}
+
+	:global(.field-row:has(+ .field-row)) {
+		border-bottom-left-radius: 0;
+		border-bottom-right-radius: 0;
+		margin-bottom: 0;
+	}
+
+	.label {
+		flex: 1;
+	}
+
+	select {
+		color-scheme: dark;
+		background-color: var(--bg);
+		color: var(--on-surface);
+		border: 1px solid transparent;
+		border-radius: var(--radius-secondary, 6px);
+		padding: var(--space-xs, 4px) var(--space-sm, 8px);
+		max-width: 28ch;
+	}
+
+	select:focus {
+		outline: none;
+		border-color: var(--accent);
+	}
+</style>

frontend/src/lib/views/InputMethod.svelte

@@ -0,0 +1,166 @@
+<script lang="ts">
+	import { onMount } from "svelte";
+	import { invoke } from "@tauri-apps/api/core";
+	import { runStreamed } from "$lib/streaming";
+	import ViewScaffold from "$lib/components/ViewScaffold.svelte";
+	import Group from "$lib/components/Group.svelte";
+	import Hint from "$lib/components/Hint.svelte";
+	import LogView from "$lib/components/LogView.svelte";
+
+	interface ImePackage {
+		name: string;
+		installed: boolean;
+	}
+	interface ImeStatus {
+		enabled: boolean;
+		running: boolean;
+		packages: ImePackage[];
+		error: string | null;
+	}
+
+	let st = $state<ImeStatus | null>(null);
+	let log = $state<string[]>([]);
+	let busy = $state(false);
+	let message = $state("");
+
+	const installSet = ["fcitx5-im", "fcitx5-gtk", "fcitx5-qt", "fcitx5-chinese-addons"];
+
+	async function refresh() {
+		st = await invoke<ImeStatus>("get_ime_status");
+	}
+
+	onMount(refresh);
+
+	async function toggle(enabled: boolean) {
+		message = "";
+		try {
+			st = await invoke<ImeStatus>("set_ime_enabled", { enabled });
+		} catch (e) {
+			message = `${e}`;
+		}
+	}
+
+	async function installMissing() {
+		const missing = st?.packages.filter((p) => !p.installed).map((p) => p.name) ?? [];
+		const packages = ["fcitx5-im", ...missing.filter((n) => n !== "fcitx5")];
+		const unique = [...new Set(packages.length ? packages : installSet)];
+		log = [];
+		busy = true;
+		await runStreamed("pacman_install", { packages: unique }, (line) => {
+			log = [...log, line];
+		});
+		busy = false;
+		await refresh();
+	}
+
+	let missing = $derived(st?.packages.filter((p) => !p.installed) ?? []);
+</script>
+
+<ViewScaffold title="Input method">
+	<Group
+		title="fcitx5"
+		hint="Writes ~/.config/environment.d/90-fcitx5.conf and a Hyprland source fragment, then starts fcitx5 for this user. Already-running apps keep their old IM until you log out."
+	>
+		{#if !st}
+			<Hint text="Loading…" />
+		{:else}
+			<div class="row-switch">
+				<span>Enable fcitx5 for this session</span>
+				<button
+					class="switch"
+					class:on={st.enabled}
+					role="switch"
+					aria-checked={st.enabled}
+					aria-label="Enable fcitx5"
+					onclick={() => toggle(!st!.enabled)}
+				>
+					<span class="knob"></span>
+				</button>
+			</div>
+			<Hint text={st.running ? "fcitx5 is running." : "fcitx5 is not running."} />
+			<button onclick={() => invoke("open_fcitx_config")}>Open fcitx5 config</button>
+		{/if}
+		{#if message}<Hint text={message} />{/if}
+	</Group>
+
+	<Group title="Packages" hint="fcitx5-im (group) plus GTK/Qt modules and a CJK table (fcitx5-chinese-addons).">
+		{#if st}
+			<ul>
+				{#each st.packages as p (p.name)}
+					<li class:missing={!p.installed}>{p.name}{p.installed ? "" : " — not installed"}</li>
+				{/each}
+			</ul>
+		{/if}
+		{#if missing.length}
+			<button class="primary" disabled={busy} onclick={installMissing}>Install missing</button>
+		{/if}
+	</Group>
+	<LogView lines={log} />
+</ViewScaffold>
+
+<style>
+	.row-switch {
+		display: flex;
+		align-items: center;
+		justify-content: space-between;
+		background-color: var(--surface);
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-md, 12px) var(--space-lg, 16px);
+		margin-bottom: var(--space-sm, 8px);
+	}
+
+	.switch {
+		width: 40px;
+		height: 22px;
+		flex-shrink: 0;
+		border-radius: 999px;
+		border: none;
+		background-color: var(--overlay);
+		padding: 2px;
+		cursor: pointer;
+		display: flex;
+		align-items: center;
+	}
+
+	.switch.on {
+		background-color: var(--accent);
+		justify-content: flex-end;
+	}
+
+	.knob {
+		width: 18px;
+		height: 18px;
+		border-radius: 50%;
+		background-color: var(--on-surface);
+		display: block;
+	}
+
+	ul {
+		margin: 0 0 var(--space-sm, 8px);
+		padding-left: 1.2em;
+	}
+
+	.missing {
+		opacity: 0.7;
+	}
+
+	button {
+		background-color: var(--surface);
+		color: var(--on-surface);
+		border: none;
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-xs, 4px) var(--space-md, 12px);
+		cursor: pointer;
+		align-self: flex-start;
+	}
+
+	button.primary {
+		background-color: var(--accent);
+		color: var(--on-accent);
+	}
+
+	button:disabled {
+		opacity: 0.5;
+		cursor: default;
+	}
+</style>

frontend/src/lib/views/NightLight.svelte

@@ -0,0 +1,145 @@
+<script lang="ts">
+	import { onMount } from "svelte";
+	import { invoke } from "@tauri-apps/api/core";
+	import { runStreamed } from "$lib/streaming";
+	import ViewScaffold from "$lib/components/ViewScaffold.svelte";
+	import Group from "$lib/components/Group.svelte";
+	import Hint from "$lib/components/Hint.svelte";
+	import NumberField from "$lib/components/NumberField.svelte";
+	import LogView from "$lib/components/LogView.svelte";
+
+	interface NightlightStatus {
+		installed: boolean;
+		running: boolean;
+		enabled: boolean;
+		temperature: number;
+		error: string | null;
+	}
+
+	let st = $state<NightlightStatus | null>(null);
+	let log = $state<string[]>([]);
+	let busy = $state(false);
+	let message = $state("");
+
+	async function refresh() {
+		st = await invoke<NightlightStatus>("get_nightlight");
+	}
+
+	onMount(refresh);
+
+	async function apply(enabled: boolean) {
+		if (!st) return;
+		message = "";
+		try {
+			st = await invoke<NightlightStatus>("set_nightlight", {
+				enabled,
+				temperature: st.temperature,
+			});
+			if (st.error) message = st.error;
+		} catch (e) {
+			message = `${e}`;
+		}
+	}
+
+	async function install() {
+		log = [];
+		busy = true;
+		await runStreamed("pacman_install", { packages: ["hyprsunset"] }, (line) => {
+			log = [...log, line];
+		});
+		busy = false;
+		await refresh();
+	}
+</script>
+
+<ViewScaffold title="Night light">
+	<Group
+		title="Hyprland twilight"
+		hint="hyprsunset owns the compositor color filter. hyprctl hyprsunset talks to its socket — the binary has to be installed and running."
+	>
+		{#if !st}
+			<Hint text="Loading…" />
+		{:else if !st.installed}
+			<Hint text="hyprsunset is not installed. Night light cannot run without it." />
+			<button class="primary" disabled={busy} onclick={install}>Install hyprsunset</button>
+		{:else}
+			<div class="row-switch">
+				<span>Night light</span>
+				<button
+					class="switch"
+					class:on={st.enabled}
+					role="switch"
+					aria-checked={st.enabled}
+					aria-label="Night light"
+					onclick={() => apply(!st!.enabled)}
+				>
+					<span class="knob"></span>
+				</button>
+			</div>
+			<NumberField label="Temperature (K)" bind:value={st.temperature} min={2000} max={6500} step={100} />
+			<button disabled={!st.enabled} onclick={() => apply(true)}>Apply temperature</button>
+			<Hint text={st.running ? "hyprsunset is running." : "hyprsunset will start when you enable night light."} />
+		{/if}
+		{#if message}<Hint text={message} />{/if}
+	</Group>
+	<LogView lines={log} />
+</ViewScaffold>
+
+<style>
+	.row-switch {
+		display: flex;
+		align-items: center;
+		justify-content: space-between;
+		background-color: var(--surface);
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-md, 12px) var(--space-lg, 16px);
+		margin-bottom: var(--space-sm, 8px);
+	}
+
+	.switch {
+		width: 40px;
+		height: 22px;
+		flex-shrink: 0;
+		border-radius: 999px;
+		border: none;
+		background-color: var(--overlay);
+		padding: 2px;
+		cursor: pointer;
+		display: flex;
+		align-items: center;
+	}
+
+	.switch.on {
+		background-color: var(--accent);
+		justify-content: flex-end;
+	}
+
+	.knob {
+		width: 18px;
+		height: 18px;
+		border-radius: 50%;
+		background-color: var(--on-surface);
+		display: block;
+	}
+
+	button {
+		background-color: var(--surface);
+		color: var(--on-surface);
+		border: none;
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-xs, 4px) var(--space-md, 12px);
+		cursor: pointer;
+		align-self: flex-start;
+		margin-top: var(--space-sm, 8px);
+	}
+
+	button.primary {
+		background-color: var(--accent);
+		color: var(--on-accent);
+	}
+
+	button:disabled {
+		opacity: 0.5;
+		cursor: default;
+	}
+</style>

frontend/src/lib/views/Optional.svelte

@@ -0,0 +1,149 @@
+<script lang="ts">
+	import { onMount } from "svelte";
+	import { invoke } from "@tauri-apps/api/core";
+	import { runStreamed } from "$lib/streaming";
+	import ViewScaffold from "$lib/components/ViewScaffold.svelte";
+	import Group from "$lib/components/Group.svelte";
+	import Hint from "$lib/components/Hint.svelte";
+	import LogView from "$lib/components/LogView.svelte";
+
+	interface OptionalItem {
+		id: string;
+		title: string;
+		detail: string;
+		installed: boolean;
+		via: string;
+	}
+	interface OptionalStatus {
+		items: OptionalItem[];
+		flathub: boolean;
+	}
+
+	let st = $state<OptionalStatus | null>(null);
+	let log = $state<string[]>([]);
+	let busy = $state(false);
+	let message = $state("");
+
+	async function refresh() {
+		st = await invoke<OptionalStatus>("get_optional_software");
+	}
+
+	onMount(refresh);
+
+	async function stream(command: string, args: Record<string, unknown> = {}) {
+		log = [];
+		busy = true;
+		message = "";
+		const ok = await runStreamed(command, args, (line) => {
+			log = [...log, line];
+		});
+		busy = false;
+		if (!ok) message = "Install failed — see the log.";
+		await refresh();
+		return ok;
+	}
+
+	async function install(id: string) {
+		if (id === "breadcast") {
+			await stream("bakery_install", { name: "breadcast" });
+			return;
+		}
+		if (id === "flatpak") {
+			const ok = await stream("pacman_install", { packages: ["flatpak"] });
+			if (ok) {
+				try {
+					await invoke("enable_flathub");
+					message = "Flathub user remote added.";
+				} catch (e) {
+					message = `${e}`;
+				}
+				await refresh();
+			}
+			return;
+		}
+		if (id === "office") {
+			await stream("pacman_install", { packages: ["libreoffice-fresh", "papers"] });
+			return;
+		}
+		if (id === "steam") {
+			await stream("pacman_install", { packages: ["steam"] });
+		}
+	}
+</script>
+
+<ViewScaffold title="Optional software">
+	<Group
+		title="Curated extras"
+		hint="Not an AUR browser. breadcast is bakery-only and is not on the ISO. Pacman items use the allowlisted installer."
+		wide
+	>
+		{#if !st}
+			<Hint text="Loading…" />
+		{:else}
+			{#each st.items as item (item.id)}
+				<div class="card">
+					<div class="meta">
+						<strong>{item.title}</strong>
+						<p>{item.detail}</p>
+						<span class="via">{item.via}{item.installed ? " · installed" : ""}</span>
+					</div>
+					{#if item.installed}
+						<span class="done">Installed</span>
+					{:else}
+						<button class="primary" disabled={busy} onclick={() => install(item.id)}>Install</button>
+					{/if}
+				</div>
+			{/each}
+		{/if}
+		{#if message}<Hint text={message} />{/if}
+	</Group>
+	<LogView lines={log} />
+</ViewScaffold>
+
+<style>
+	.card {
+		display: flex;
+		align-items: center;
+		gap: var(--space-md, 12px);
+		background-color: var(--surface);
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-md, 12px) var(--space-lg, 16px);
+		margin-bottom: var(--space-sm, 8px);
+	}
+
+	.meta {
+		flex: 1;
+		min-width: 0;
+	}
+
+	.meta p {
+		margin: 4px 0;
+		opacity: 0.8;
+		font-size: var(--font-size-secondary, 12px);
+	}
+
+	.via,
+	.done {
+		opacity: 0.65;
+		font-size: var(--font-size-secondary, 12px);
+	}
+
+	button {
+		background-color: var(--surface);
+		color: var(--on-surface);
+		border: none;
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-xs, 4px) var(--space-md, 12px);
+		cursor: pointer;
+	}
+
+	button.primary {
+		background-color: var(--accent);
+		color: var(--on-accent);
+	}
+
+	button:disabled {
+		opacity: 0.5;
+		cursor: default;
+	}
+</style>

frontend/src/lib/views/Printing.svelte

@@ -0,0 +1,147 @@
+<script lang="ts">
+	import { onMount } from "svelte";
+	import { invoke } from "@tauri-apps/api/core";
+	import ViewScaffold from "$lib/components/ViewScaffold.svelte";
+	import Group from "$lib/components/Group.svelte";
+	import Hint from "$lib/components/Hint.svelte";
+	import EmptyState from "$lib/components/EmptyState.svelte";
+	import TextField from "$lib/components/TextField.svelte";
+	import Printer from "@lucide/svelte/icons/printer";
+
+	interface PrinterRow {
+		name: string;
+		status: string;
+		enabled: boolean;
+		is_default: boolean;
+	}
+	interface PrintingStatus {
+		printers: PrinterRow[];
+		default: string | null;
+		cups_ok: boolean;
+		error: string | null;
+	}
+
+	let status = $state<PrintingStatus | null>(null);
+	let message = $state("");
+	let newName = $state("");
+	let newUri = $state("");
+
+	async function refresh() {
+		status = await invoke<PrintingStatus>("get_printers");
+	}
+
+	onMount(refresh);
+
+	async function setDefault(name: string) {
+		message = "";
+		try {
+			await invoke("set_default_printer", { name });
+			message = `${name} is the default printer.`;
+			await refresh();
+		} catch (e) {
+			message = `${e}`;
+		}
+	}
+
+	async function addIpp() {
+		message = "";
+		try {
+			await invoke("add_ipp_printer", { name: newName.trim(), uri: newUri.trim() });
+			message = `Added ${newName.trim()}.`;
+			newName = "";
+			newUri = "";
+			await refresh();
+		} catch (e) {
+			message = `${e}`;
+		}
+	}
+</script>
+
+<ViewScaffold title="Printing">
+	<Group title="Printers" hint="CUPS + Avahi ship on the ISO. Discovery and drivers for odd hardware live in system-config-printer." wide>
+		{#if !status}
+			<Hint text="Loading…" />
+		{:else if status.error}
+			<EmptyState icon={Printer} title="Couldn't talk to CUPS" hint={status.error} />
+		{:else if status.printers.length === 0}
+			<EmptyState icon={Printer} title="No printers yet" hint="Add one below, or open the CUPS printer wizard." />
+		{:else}
+			<div class="list">
+				{#each status.printers as p (p.name)}
+					<div class="row">
+						<div class="meta">
+							<span class="name">{p.name}{p.is_default ? " (default)" : ""}</span>
+							<span class="status">{p.enabled ? p.status : "disabled"}</span>
+						</div>
+						<button disabled={p.is_default} onclick={() => setDefault(p.name)}>Set default</button>
+					</div>
+				{/each}
+			</div>
+		{/if}
+		<div class="btn-row">
+			<button onclick={refresh}>Refresh</button>
+			<button class="primary" onclick={() => invoke("open_printer_settings")}>Add printer…</button>
+		</div>
+		{#if message}<Hint text={message} />{/if}
+	</Group>
+
+	<Group title="IPP Everywhere" hint="For a printer that already speaks IPP. Name must be letters, digits, dash, underscore.">
+		<TextField label="Name" bind:value={newName} placeholder="Office" />
+		<TextField label="URI" bind:value={newUri} placeholder="ipp://192.168.1.20/ipp/print" />
+		<button disabled={!newName.trim() || !newUri.trim()} onclick={addIpp}>Add IPP printer</button>
+	</Group>
+</ViewScaffold>
+
+<style>
+	.list {
+		display: flex;
+		flex-direction: column;
+		gap: 6px;
+	}
+
+	.row {
+		display: flex;
+		align-items: center;
+		gap: var(--space-md, 12px);
+		background-color: var(--surface);
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-sm, 8px) var(--space-md, 12px);
+	}
+
+	.meta {
+		flex: 1;
+		min-width: 0;
+		display: flex;
+		flex-direction: column;
+	}
+
+	.status {
+		opacity: 0.7;
+		font-size: var(--font-size-secondary, 12px);
+	}
+
+	.btn-row {
+		display: flex;
+		gap: var(--space-sm, 8px);
+		margin-top: var(--space-sm, 8px);
+	}
+
+	button {
+		background-color: var(--surface);
+		color: var(--on-surface);
+		border: none;
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-xs, 4px) var(--space-md, 12px);
+		cursor: pointer;
+	}
+
+	button.primary {
+		background-color: var(--accent);
+		color: var(--on-accent);
+	}
+
+	button:disabled {
+		opacity: 0.5;
+		cursor: default;
+	}
+</style>

frontend/src/lib/views/Snapshots.svelte

@@ -42,7 +42,7 @@
 		if (!selected) return;
 		if (
 			confirm(
-				`Boot into snapshot #${selected}? Snapshots on BOS are booted directly from the GRUB menu (under "BOS snapshots"), not rolled back in place. Reboot now and pick this snapshot there.`,
+				`Reboot to pick snapshot #${selected} in GRUB? BOS boots snapshots from the GRUB “BOS snapshots” submenu. This does not run snapper rollback.`,
 			)
 		) {
 			invoke("reboot_system");
@@ -62,9 +62,10 @@
 </script>
 
 <ViewScaffold title="Snapshots">
+	<Hint text="This is how you undo a bad update: reboot and pick the snapshot in GRUB (BOS snapshots)." />
 	<Group
-		title="System snapshots"
-		hint="Created automatically by snap-pac on each pacman transaction. Boot into one from the GRUB menu to recover; delete old ones here."
+		title="What to pick in GRUB"
+		hint="Number, date, and description match the GRUB “BOS snapshots” submenu. Reboot, then choose that entry. This page does not run snapper rollback."
 		wide
 	>
 		<div class="list">
@@ -75,6 +76,11 @@
 			{:else if snapshots.length === 0}
 				<EmptyState icon={History} title="No snapshots yet" hint="Snapshots are created automatically on every pacman transaction." />
 			{:else}
+				<div class="row header" aria-hidden="true">
+					<span class="number">#</span>
+					<span class="date">Date</span>
+					<span class="desc">Description</span>
+				</div>
 				{#each snapshots as snap (snap.number)}
 					<button
 						class="row"
@@ -91,7 +97,7 @@
 
 		<div class="btn-row">
 			<button onclick={refresh}>Refresh</button>
-			<button disabled={!selected} onclick={bootIntoSelected}>Boot into selected…</button>
+			<button disabled={!selected} onclick={bootIntoSelected}>Reboot to pick in GRUB</button>
 			<button class="destructive" disabled={!selected} onclick={deleteSelected}>Delete selected</button>
 		</div>
 	</Group>
@@ -121,7 +127,15 @@
 		min-width: 0;
 	}
 
-	.row:hover {
+	.row.header {
+		background: transparent;
+		cursor: default;
+		opacity: 0.55;
+		font-size: var(--font-size-secondary, 12px);
+		padding-top: 0;
+	}
+
+	.row:hover:not(.header) {
 		background-color: color-mix(in srgb, var(--surface), var(--on-surface) 8%);
 	}
 

frontend/src/lib/views/Updates.svelte

@@ -0,0 +1,253 @@
+<script lang="ts">
+	import { getContext, onMount } from "svelte";
+	import { invoke } from "@tauri-apps/api/core";
+	import { runStreamed } from "$lib/streaming";
+	import ViewScaffold from "$lib/components/ViewScaffold.svelte";
+	import Group from "$lib/components/Group.svelte";
+	import Hint from "$lib/components/Hint.svelte";
+	import EmptyState from "$lib/components/EmptyState.svelte";
+	import LogView from "$lib/components/LogView.svelte";
+	import { NAVIGATE_KEY, type Navigate } from "$lib/nav";
+	import Download from "@lucide/svelte/icons/download";
+	import Cpu from "@lucide/svelte/icons/cpu";
+
+	const navigate = getContext<Navigate | undefined>(NAVIGATE_KEY);
+
+	interface PendingUpdate {
+		name: string;
+		current: string;
+		latest: string;
+	}
+	interface FwDevice {
+		name: string;
+		version: string;
+	}
+	interface NvidiaOffer {
+		gpu: string;
+		reason: string;
+		packages: string[];
+		installed: boolean;
+	}
+	interface UpdatesStatus {
+		pacman: PendingUpdate[];
+		pacman_error: string | null;
+		bakery: PendingUpdate[];
+		bakery_error: string | null;
+		firmware: FwDevice[];
+		nvidia: NvidiaOffer | null;
+	}
+
+	let status = $state<UpdatesStatus | null>(null);
+	let log = $state<string[]>([]);
+	let busy = $state(false);
+
+	async function refresh() {
+		status = await invoke<UpdatesStatus>("get_updates_status");
+	}
+
+	onMount(refresh);
+
+	function appendLine(line: string) {
+		log = [...log, line];
+	}
+
+	async function run(command: string, args: Record<string, unknown> = {}) {
+		log = [];
+		busy = true;
+		await runStreamed(command, args, appendLine);
+		busy = false;
+		await refresh();
+	}
+</script>
+
+<ViewScaffold title="Updates">
+	{#if status?.nvidia}
+		<Group title="NVIDIA driver" wide>
+			<div class="offer">
+				<Cpu size={20} />
+				<div class="offer-text">
+					<strong>{status.nvidia.gpu}</strong>
+					<p>{status.nvidia.reason}</p>
+					{#if status.nvidia.installed}
+						<Hint text="Driver and Hyprland env drop-in are in place. Reboot to start a working session." />
+					{:else}
+						<Hint text="Installs nvidia + nvidia-utils (not cuda) and writes ~/.config/hypr/nvidia.lua. hyprland.lua loads that file only if it exists. Reboot after." />
+					{/if}
+				</div>
+				<button
+					class="primary"
+					disabled={busy}
+					onclick={() => run("nvidia_setup")}
+				>
+					{status.nvidia.installed ? "Re-run setup" : "Install driver"}
+				</button>
+			</div>
+		</Group>
+	{/if}
+
+	<Group
+		title="System packages (pacman)"
+		hint="The same set Packages covers with pacman -Syu. Needs your password (polkit)."
+		wide
+	>
+		{#if !status}
+			<Hint text="Loading…" />
+		{:else if status.pacman_error}
+			<Hint text={status.pacman_error} />
+		{:else if status.pacman.length === 0}
+			<EmptyState icon={Download} title="Pacman is up to date" hint="No pending official-repo upgrades." />
+		{:else}
+			<div class="list">
+				{#each status.pacman as pkg (pkg.name)}
+					<div class="row">
+						<span class="name">{pkg.name}</span>
+						<span class="version">{pkg.current} → {pkg.latest}</span>
+					</div>
+				{/each}
+			</div>
+		{/if}
+		<div class="btn-row">
+			<button disabled={busy} class="primary" onclick={() => run("pacman_system_update")}>Update system</button>
+			<button disabled={busy} onclick={refresh}>Refresh</button>
+		</div>
+	</Group>
+
+	<Group
+		title="Bread ecosystem (bakery)"
+		hint="bakery --dry-run update --all — bakery has no separate outdated command. Per-package install still lives on Packages."
+		wide
+	>
+		{#if !status}
+			<Hint text="Loading…" />
+		{:else if status.bakery_error}
+			<Hint text={status.bakery_error} />
+		{:else if status.bakery.length === 0}
+			<EmptyState icon={Download} title="Bakery packages are current" hint="Nothing on this track wants an update." />
+		{:else}
+			<div class="list">
+				{#each status.bakery as pkg (pkg.name)}
+					<div class="row">
+						<span class="name">{pkg.name}</span>
+						<span class="version">{pkg.current ? `${pkg.current} → ` : ""}{pkg.latest}</span>
+						<button disabled={busy} onclick={() => run("bakery_update", { name: pkg.name })}>Update</button>
+					</div>
+				{/each}
+			</div>
+		{/if}
+		<div class="btn-row">
+			<button disabled={busy} class="primary" onclick={() => run("bakery_update_all")}>Update all bakery</button>
+		</div>
+	</Group>
+
+	<Group title="Firmware (fwupd)" hint="Same list as the Firmware page. fwupd-refresh.timer already refreshes metadata in the background." wide>
+		{#if !status}
+			<Hint text="Loading…" />
+		{:else if status.firmware.length === 0}
+			<EmptyState icon={Download} title="No updatable firmware" hint="Not every device speaks fwupd." />
+		{:else}
+			<div class="list">
+				{#each status.firmware as dev (dev.name)}
+					<div class="row">
+						<span class="name">{dev.name}</span>
+						<span class="version">{dev.version}</span>
+					</div>
+				{/each}
+			</div>
+		{/if}
+		<div class="btn-row">
+			<button disabled={busy} onclick={() => run("fwupd_refresh")}>Check for updates</button>
+			<button disabled={busy} class="primary" onclick={() => run("fwupd_update")}>Update firmware</button>
+		</div>
+	</Group>
+
+	<Group
+		title="Rollback"
+		hint="Boot a snapshot from GRUB (BOS snapshots)."
+	>
+		<Hint text="Snapshots lists number, date, and description so you know which GRUB entry to pick. snapper rollback will not change what GRUB boots (rootflags=subvol=@)." />
+		<Hint text="Bakery also has bakery rollback <pkg> for a single ecosystem binary — that is not a system rollback." />
+		<div class="btn-row">
+			<button disabled={!navigate} onclick={() => navigate?.("snapshots")}>Open Snapshots</button>
+		</div>
+	</Group>
+
+	<LogView lines={log} />
+</ViewScaffold>
+
+<style>
+	.offer {
+		display: flex;
+		align-items: flex-start;
+		gap: var(--space-md, 12px);
+		background-color: var(--surface);
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-md, 12px);
+	}
+
+	.offer-text {
+		flex: 1;
+		min-width: 0;
+	}
+
+	.offer-text p {
+		margin: 4px 0;
+		opacity: 0.8;
+	}
+
+	.list {
+		max-height: 240px;
+		overflow-y: auto;
+		display: flex;
+		flex-direction: column;
+		gap: 6px;
+	}
+
+	.row {
+		display: flex;
+		align-items: center;
+		gap: var(--space-md, 12px);
+		background-color: var(--surface);
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-sm, 8px) var(--space-md, 12px);
+		min-width: 0;
+	}
+
+	.name {
+		flex: 1;
+		min-width: 0;
+		overflow: hidden;
+		text-overflow: ellipsis;
+		white-space: nowrap;
+	}
+
+	.version {
+		opacity: 0.75;
+		font-size: var(--font-size-secondary, 12px);
+		flex-shrink: 0;
+	}
+
+	.btn-row {
+		display: flex;
+		gap: var(--space-sm, 8px);
+		margin-top: var(--space-sm, 8px);
+	}
+
+	button {
+		background-color: var(--surface);
+		color: var(--on-surface);
+		border: none;
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-xs, 4px) var(--space-md, 12px);
+		cursor: pointer;
+	}
+
+	button.primary {
+		background-color: var(--accent);
+		color: var(--on-accent);
+	}
+
+	button:disabled {
+		opacity: 0.5;
+		cursor: default;
+	}
+</style>

frontend/src/lib/views/Vpn.svelte

@@ -0,0 +1,148 @@
+<script lang="ts">
+	import { onMount } from "svelte";
+	import { invoke } from "@tauri-apps/api/core";
+	import ViewScaffold from "$lib/components/ViewScaffold.svelte";
+	import Group from "$lib/components/Group.svelte";
+	import Hint from "$lib/components/Hint.svelte";
+	import EmptyState from "$lib/components/EmptyState.svelte";
+	import FileField from "$lib/components/FileField.svelte";
+	import ShieldEllipsis from "@lucide/svelte/icons/shield-ellipsis";
+
+	interface VpnConnection {
+		name: string;
+		kind: string;
+		active: boolean;
+		autoconnect: boolean;
+	}
+	interface VpnStatus {
+		connections: VpnConnection[];
+		error: string | null;
+	}
+
+	let status = $state<VpnStatus | null>(null);
+	let importPath = $state("");
+	let message = $state("");
+	let busy = $state(false);
+
+	async function refresh() {
+		status = await invoke<VpnStatus>("get_vpn_connections");
+	}
+
+	onMount(refresh);
+
+	async function connect(name: string, up: boolean) {
+		busy = true;
+		message = "";
+		try {
+			await invoke(up ? "vpn_connect" : "vpn_disconnect", { name });
+			message = up ? `Connected ${name}` : `Disconnected ${name}`;
+			await refresh();
+		} catch (e) {
+			message = `${e}`;
+		}
+		busy = false;
+	}
+
+	async function doImport() {
+		if (!importPath.trim()) return;
+		busy = true;
+		message = "";
+		try {
+			await invoke("vpn_import", { path: importPath.trim() });
+			message = "Imported. Connect it from the list.";
+			importPath = "";
+			await refresh();
+		} catch (e) {
+			message = `${e}`;
+		}
+		busy = false;
+	}
+</script>
+
+<ViewScaffold title="VPN / WireGuard">
+	<Group
+		title="NetworkManager tunnels"
+		hint="Lists connection type vpn and wireguard only. Wi-Fi profiles stay on breadcrumbs; Tailscale is not managed here."
+		wide
+	>
+		{#if !status}
+			<Hint text="Loading…" />
+		{:else if status.error}
+			<EmptyState icon={ShieldEllipsis} title="Couldn't list connections" hint={status.error} />
+		{:else if status.connections.length === 0}
+			<EmptyState icon={ShieldEllipsis} title="No VPN or WireGuard connections" hint="Import a .conf below, or use nm-connection-editor from Network." />
+		{:else}
+			<div class="list">
+				{#each status.connections as c (c.name)}
+					<div class="row">
+						<div class="meta">
+							<span class="name">{c.name}</span>
+							<span class="kind">{c.kind}{c.active ? " · connected" : ""}{c.autoconnect ? " · autoconnect" : ""}</span>
+						</div>
+						{#if c.active}
+							<button disabled={busy} onclick={() => connect(c.name, false)}>Disconnect</button>
+						{:else}
+							<button class="primary" disabled={busy} onclick={() => connect(c.name, true)}>Connect</button>
+						{/if}
+					</div>
+				{/each}
+			</div>
+		{/if}
+		<button onclick={refresh}>Refresh</button>
+		{#if message}<Hint text={message} />{/if}
+	</Group>
+
+	<Group title="Import" hint="WireGuard .conf or OpenVPN .ovpn. NetworkManager stores the secret after import.">
+		<FileField label="Config" bind:value={importPath} placeholder="wg0.conf" extensions={["conf", "ovpn"]} />
+		<button class="primary" disabled={busy || !importPath.trim()} onclick={doImport}>Import</button>
+	</Group>
+</ViewScaffold>
+
+<style>
+	.list {
+		display: flex;
+		flex-direction: column;
+		gap: 6px;
+		margin-bottom: var(--space-sm, 8px);
+	}
+
+	.row {
+		display: flex;
+		align-items: center;
+		gap: var(--space-md, 12px);
+		background-color: var(--surface);
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-sm, 8px) var(--space-md, 12px);
+	}
+
+	.meta {
+		flex: 1;
+		min-width: 0;
+		display: flex;
+		flex-direction: column;
+	}
+
+	.kind {
+		opacity: 0.7;
+		font-size: var(--font-size-secondary, 12px);
+	}
+
+	button {
+		background-color: var(--surface);
+		color: var(--on-surface);
+		border: none;
+		border-radius: var(--radius-primary, 8px);
+		padding: var(--space-xs, 4px) var(--space-md, 12px);
+		cursor: pointer;
+	}
+
+	button.primary {
+		background-color: var(--accent);
+		color: var(--on-accent);
+	}
+
+	button:disabled {
+		opacity: 0.5;
+		cursor: default;
+	}
+</style>

frontend/src/lib/views/registry.ts

@@ -30,6 +30,16 @@ import Breadlock from "./Breadlock.svelte";
 import Breadshot from "./Breadshot.svelte";
 import Breadmon from "./Breadmon.svelte";
 import Breadhelp from "./Breadhelp.svelte";
+import Updates from "./Updates.svelte";
+import Printing from "./Printing.svelte";
+import Vpn from "./Vpn.svelte";
+import NightLight from "./NightLight.svelte";
+import InputMethod from "./InputMethod.svelte";
+import Accessibility from "./Accessibility.svelte";
+import Defaults from "./Defaults.svelte";
+import Channel from "./Channel.svelte";
+import Backup from "./Backup.svelte";
+import Optional from "./Optional.svelte";
 
 export const VIEWS: Record<string, Component> = {
 	about: About,
@@ -60,4 +70,14 @@ export const VIEWS: Record<string, Component> = {
 	breadshot: Breadshot,
 	breadmon: Breadmon,
 	breadhelp: Breadhelp,
+	updates: Updates,
+	printing: Printing,
+	vpn: Vpn,
+	nightlight: NightLight,
+	ime: InputMethod,
+	accessibility: Accessibility,
+	defaults: Defaults,
+	channel: Channel,
+	backup: Backup,
+	optional: Optional,
 };

frontend/src/routes/+page.svelte

@@ -1,14 +1,18 @@
 <script lang="ts">
-	import { onMount } from "svelte";
+	import { onMount, setContext } from "svelte";
 	import { listen } from "@tauri-apps/api/event";
 	import Sidebar from "$lib/components/Sidebar.svelte";
 	import Placeholder from "$lib/components/Placeholder.svelte";
 	import { DEFAULT_PAGE } from "$lib/sidebar";
+	import { NAVIGATE_KEY, type Navigate } from "$lib/nav";
 	import { initTheme } from "$lib/theme";
 	import { VIEWS } from "$lib/views/registry";
 
 	let activePage = $state(DEFAULT_PAGE);
 	let ActiveView = $derived(VIEWS[activePage]);
+	setContext<Navigate>(NAVIGATE_KEY, (page) => {
+		activePage = page;
+	});
 
 	onMount(() => {
 		initTheme();

src/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "bos-settings"
-version = "0.8.0"
+version = "0.8.2"
 description = "System settings app for BOS (Bread Operating System)"
 authors = ["Breadway"]
 edition = "2021"
@@ -36,7 +36,7 @@ toml_edit = "0.22"
 tokio = { version = "1", features = ["process", "io-util", "time", "macros"] }
 notify = "7"
 regex = "1"
-bread-theme = { git = "https://git.breadway.dev/Breadway/bread-ecosystem", tag = "v0.7.2" }
+bread-theme = { git = "https://git.breadway.dev/Breadway/bread-ecosystem", tag = "v0.7.4" }
 bread-utils = { git = "https://git.breadway.dev/Breadway/bread-ecosystem", tag = "v0.7.2", features = ["toml"] }
 anyhow = "1"
 

src/capabilities/default.json

@@ -5,7 +5,6 @@
   "windows": ["main"],
   "permissions": [
     "core:default",
-    "opener:default",
     "dialog:default"
   ]
 }

src/src/commands/a11y.rs

@@ -0,0 +1,116 @@
+//! Accessibility toggles that actually do something on Hyprland.
+//! Orca launches. Magnifier is Hyprland `cursor:zoom_factor`. Sticky/slow
+//! keys are not exposed by Hyprland or xkeyboard-config rules — the UI
+//! must show that honestly rather than a dead switch.
+
+use serde::Serialize;
+use tokio::process::Command;
+
+use super::util::{command_exists, fail_output, pacman_installed};
+
+#[derive(Serialize)]
+pub struct A11yStatus {
+    orca_installed: bool,
+    orca_running: bool,
+    zoom_factor: f64,
+    sticky_keys_supported: bool,
+    slow_keys_supported: bool,
+    kmag_installed: bool,
+    note: String,
+}
+
+async fn orca_running() -> bool {
+    Command::new("pgrep")
+        .args(["-x", "orca"])
+        .status()
+        .await
+        .map(|s| s.success())
+        .unwrap_or(false)
+}
+
+async fn read_zoom() -> f64 {
+    let output = Command::new("hyprctl")
+        .args(["getoption", "cursor:zoom_factor", "-j"])
+        .output()
+        .await;
+    let Ok(output) = output else {
+        return 1.0;
+    };
+    let Ok(v) = serde_json::from_slice::<serde_json::Value>(&output.stdout) else {
+        return 1.0;
+    };
+    v.get("float")
+        .and_then(|x| x.as_f64())
+        .or_else(|| v.get("int").and_then(|x| x.as_i64()).map(|i| i as f64))
+        .unwrap_or(1.0)
+}
+
+#[tauri::command]
+pub async fn get_a11y_status() -> A11yStatus {
+    A11yStatus {
+        orca_installed: command_exists("orca") || pacman_installed("orca"),
+        orca_running: orca_running().await,
+        zoom_factor: read_zoom().await,
+        sticky_keys_supported: false,
+        slow_keys_supported: false,
+        kmag_installed: command_exists("kmag") || pacman_installed("kmag"),
+        note: "Hyprland does not expose XKB AccessX (sticky keys / slow keys). Those toggles stay off because they would not do anything.".into(),
+    }
+}
+
+#[tauri::command]
+pub async fn set_cursor_zoom(factor: f64) -> Result<f64, String> {
+    let factor = factor.clamp(1.0, 8.0);
+    let value = format!("{factor:.2}");
+    let output = Command::new("hyprctl")
+        .args(["keyword", "cursor:zoom_factor", &value])
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
+    if output.status.success() {
+        Ok(factor)
+    } else {
+        Err(fail_output(&output, "hyprctl keyword cursor:zoom_factor"))
+    }
+}
+
+#[tauri::command]
+pub async fn set_orca_running(running: bool) -> Result<(), String> {
+    if running {
+        if !command_exists("orca") {
+            return Err("orca is not installed".into());
+        }
+        std::process::Command::new("orca")
+            .arg("--replace")
+            .stdin(std::process::Stdio::null())
+            .stdout(std::process::Stdio::null())
+            .stderr(std::process::Stdio::null())
+            .spawn()
+            .map_err(|e| format!("couldn't start orca: {e}"))?;
+        Ok(())
+    } else {
+        let _ = Command::new("pkill").args(["-x", "orca"]).status().await;
+        Ok(())
+    }
+}
+
+#[tauri::command]
+pub fn open_kmag() -> Result<(), String> {
+    if !command_exists("kmag") {
+        return Err("kmag is not installed".into());
+    }
+    std::process::Command::new("kmag")
+        .spawn()
+        .map_err(|e| format!("couldn't start kmag: {e}"))?;
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn zoom_clamp_bounds() {
+        let f = 0.2_f64.clamp(1.0, 8.0);
+        assert_eq!(f, 1.0);
+        assert_eq!(12.0_f64.clamp(1.0, 8.0), 8.0);
+    }
+}

src/src/commands/about.rs

@@ -23,8 +23,10 @@ fn os_pretty_name() -> String {
     fs::read_to_string("/etc/os-release")
         .ok()
         .and_then(|s| {
-            s.lines()
-                .find_map(|l| l.strip_prefix("PRETTY_NAME=").map(|v| v.trim_matches('"').to_string()))
+            s.lines().find_map(|l| {
+                l.strip_prefix("PRETTY_NAME=")
+                    .map(|v| v.trim_matches('"').to_string())
+            })
         })
         .unwrap_or_else(|| "BOS".to_string())
 }
@@ -49,11 +51,15 @@ fn cpu() -> String {
     let model = fs::read_to_string("/proc/cpuinfo")
         .ok()
         .and_then(|s| {
-            s.lines()
-                .find_map(|l| l.strip_prefix("model name").map(|v| v.trim_start_matches([':', ' ', '\t']).to_string()))
+            s.lines().find_map(|l| {
+                l.strip_prefix("model name")
+                    .map(|v| v.trim_start_matches([':', ' ', '\t']).to_string())
+            })
         })
         .unwrap_or_else(|| "unknown".to_string());
-    let cores = std::thread::available_parallelism().map(|n| n.get()).unwrap_or(0);
+    let cores = std::thread::available_parallelism()
+        .map(|n| n.get())
+        .unwrap_or(0);
     if cores > 0 {
         format!("{model} ({cores} threads)")
     } else {
@@ -62,9 +68,7 @@ fn cpu() -> String {
 }
 
 fn memory() -> String {
-    let kb = fs::read_to_string("/proc/meminfo")
-        .ok()
-        .and_then(|s| {
+    let kb = fs::read_to_string("/proc/meminfo").ok().and_then(|s| {
         s.lines()
             .find(|l| l.starts_with("MemTotal:"))
             .and_then(|l| l.split_whitespace().nth(1))
@@ -96,7 +100,11 @@ async fn gpu() -> String {
 }
 
 async fn disk_usage() -> String {
-    let Ok(output) = Command::new("df").args(["-h", "--output=used,size,pcent", "/"]).output().await else {
+    let Ok(output) = Command::new("df")
+        .args(["-h", "--output=used,size,pcent", "/"])
+        .output()
+        .await
+    else {
         return "unknown".to_string();
     };
     let text = String::from_utf8_lossy(&output.stdout);
@@ -136,11 +144,35 @@ pub async fn get_system_info() -> SystemInfo {
     }
 }
 
+/// RFC 1123 labels (digit start allowed), no leading `-`. Linux static
+/// hostnames are also capped at `HOST_NAME_MAX` (64).
+fn valid_hostname(name: &str) -> bool {
+    let name = name.trim();
+    if name.is_empty() || name.len() > 64 || name.starts_with('-') {
+        return false;
+    }
+    if name.contains('\n') || name.contains('\r') || name.contains('\0') {
+        return false;
+    }
+    name.split('.').all(valid_dns_label)
+}
+
+fn valid_dns_label(label: &str) -> bool {
+    let b = label.as_bytes();
+    if b.is_empty() || b.len() > 63 {
+        return false;
+    }
+    if !b[0].is_ascii_alphanumeric() || !b[b.len() - 1].is_ascii_alphanumeric() {
+        return false;
+    }
+    b.iter().all(|c| c.is_ascii_alphanumeric() || *c == b'-')
+}
+
 #[tauri::command]
 pub async fn set_hostname(name: String) -> Result<(), String> {
     let name = name.trim();
-    if name.is_empty() {
-        return Err("Hostname can't be empty".into());
+    if !valid_hostname(name) {
+        return Err("invalid hostname".into());
     }
     let output = Command::new("pkexec")
         .args(["hostnamectl", "set-hostname", name])
@@ -153,3 +185,24 @@ pub async fn set_hostname(name: String) -> Result<(), String> {
         Err(String::from_utf8_lossy(&output.stderr).trim().to_string())
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn hostname_rfc1123() {
+        assert!(valid_hostname("bos"));
+        assert!(valid_hostname("bos.local"));
+        assert!(valid_hostname("a1-b"));
+        assert!(valid_hostname("1host"));
+        assert!(!valid_hostname(""));
+        assert!(!valid_hostname("-bos"));
+        assert!(!valid_hostname("bos-"));
+        assert!(!valid_hostname("-foo.bar"));
+        assert!(!valid_hostname("foo_bar"));
+        assert!(!valid_hostname("bos\n-set-hostname evil"));
+        assert!(!valid_hostname("--help"));
+        assert!(!valid_hostname(&"a".repeat(65)));
+    }
+}

src/src/commands/aur.rs

@@ -10,6 +10,8 @@
 
 use serde::Serialize;
 
+use super::util;
+
 #[derive(Serialize, Clone)]
 pub struct AurResult {
     name: String,
@@ -19,7 +21,11 @@ pub struct AurResult {
 
 #[tauri::command]
 pub async fn search_aur(query: String) -> Vec<AurResult> {
-    let Ok(output) = tokio::process::Command::new("yay").args(["-Ss", "--aur", &query]).output().await else {
+    let Ok(output) = tokio::process::Command::new("yay")
+        .args(["-Ss", "--aur", &query])
+        .output()
+        .await
+    else {
         return Vec::new();
     };
     let text = String::from_utf8_lossy(&output.stdout);
@@ -28,12 +34,18 @@ pub async fn search_aur(query: String) -> Vec<AurResult> {
     while let Some(header) = lines.next() {
         // "aur/name version (+votes score) [Orphaned]" — name/version are
         // always the first two whitespace-separated fields after "aur/".
-        let Some(rest) = header.strip_prefix("aur/") else { continue };
+        let Some(rest) = header.strip_prefix("aur/") else {
+            continue;
+        };
         let mut parts = rest.split_whitespace();
         let Some(name) = parts.next() else { continue };
         let version = parts.next().unwrap_or("").to_string();
         let description = lines.next().unwrap_or("").trim().to_string();
-        results.push(AurResult { name: name.to_string(), version, description });
+        results.push(AurResult {
+            name: name.to_string(),
+            version,
+            description,
+        });
         if results.len() >= 50 {
             break;
         }
@@ -42,6 +54,13 @@ pub async fn search_aur(query: String) -> Vec<AurResult> {
 }
 
 #[tauri::command]
-pub fn install_aur_package(pkg: String) {
-    let _ = std::process::Command::new("kitty").args(["-e", "yay", "-S", &pkg]).spawn();
+pub fn install_aur_package(pkg: String) -> Result<(), String> {
+    if !util::valid_pkg_name(&pkg) {
+        return Err(format!("refusing to install '{pkg}'"));
+    }
+    std::process::Command::new("kitty")
+        .args(["-e", "yay", "-S", &pkg])
+        .spawn()
+        .map_err(|e| e.to_string())?;
+    Ok(())
 }

src/src/commands/backup.rs

@@ -0,0 +1,488 @@
+//! restic backups of `$HOME`. Repo path + password live in
+//! `~/.config/bos-settings/backup.toml` (0600). The password is write-only
+//! to the webview — empty on save keeps the stored secret.
+
+use serde::{Deserialize, Serialize};
+use std::path::{Path, PathBuf};
+use tauri::AppHandle;
+use tokio::process::Command;
+
+use super::config;
+use super::streaming;
+use super::util::{self, command_exists, fail_output};
+
+fn home_dir() -> PathBuf {
+    std::env::var("HOME")
+        .map(PathBuf::from)
+        .unwrap_or_else(|_| PathBuf::from("/root"))
+}
+
+fn backup_toml() -> PathBuf {
+    util::bos_settings_dir().join("backup.toml")
+}
+
+#[derive(Clone)]
+pub struct BackupSecrets {
+    pub repo: String,
+    pub password: Option<String>,
+}
+
+impl BackupSecrets {
+    fn empty() -> Self {
+        Self {
+            repo: String::new(),
+            password: None,
+        }
+    }
+}
+
+pub fn load_secrets() -> BackupSecrets {
+    load_secrets_from(&backup_toml())
+}
+
+fn load_secrets_from(path: &Path) -> BackupSecrets {
+    let Ok(text) = std::fs::read_to_string(path) else {
+        return BackupSecrets::empty();
+    };
+    let doc = text.parse::<toml_edit::DocumentMut>().unwrap_or_default();
+    BackupSecrets {
+        repo: config::get_str(&doc, &["repo"]).unwrap_or_default(),
+        password: config::get_str(&doc, &["password"]).filter(|s| !s.is_empty()),
+    }
+}
+
+fn save_secrets_to(path: &Path, repo: &str, password: Option<&str>) -> Result<(), String> {
+    let existing = load_secrets_from(path);
+    let password = match password.map(str::trim).filter(|s| !s.is_empty()) {
+        Some(p) => Some(p.to_string()),
+        None => existing.password,
+    };
+    let mut doc = toml_edit::DocumentMut::new();
+    config::set_str(&mut doc, &["repo"], repo.trim());
+    if let Some(p) = password.as_deref() {
+        config::set_str(&mut doc, &["password"], p);
+    }
+    util::write_secure(path, &doc.to_string())
+}
+
+#[derive(Serialize)]
+pub struct BackupStatus {
+    restic_installed: bool,
+    repo: String,
+    has_password: bool,
+    snapshots: Vec<ResticSnapshot>,
+    error: Option<String>,
+    home: String,
+}
+
+#[derive(Serialize, Clone)]
+pub struct ResticSnapshot {
+    id: String,
+    time: String,
+    paths: Vec<String>,
+}
+
+#[tauri::command]
+pub fn get_backup_config() -> BackupStatus {
+    let s = load_secrets();
+    BackupStatus {
+        restic_installed: command_exists("restic"),
+        repo: s.repo,
+        has_password: s.password.is_some(),
+        snapshots: Vec::new(),
+        error: None,
+        home: home_dir().to_string_lossy().into_owned(),
+    }
+}
+
+#[derive(Deserialize)]
+pub struct SaveBackupInput {
+    repo: String,
+    #[serde(default)]
+    password: Option<String>,
+}
+
+#[tauri::command]
+pub fn save_backup_config(input: SaveBackupInput) -> Result<(), String> {
+    if !valid_repo(&input.repo) {
+        return Err("repo must be an absolute path or sftp:user@host:path".into());
+    }
+    save_secrets_to(&backup_toml(), &input.repo, input.password.as_deref())
+}
+
+pub fn valid_repo(repo: &str) -> bool {
+    let repo = repo.trim();
+    if repo.is_empty() || repo.len() > 512 || repo.contains('\n') || repo.contains('\0') {
+        return false;
+    }
+    if let Some(rest) = repo.strip_prefix("sftp:") {
+        return !rest.is_empty() && rest.contains('@') && rest.contains(':') && !rest.contains(' ');
+    }
+    std::path::Path::new(repo).is_absolute()
+}
+
+fn require_ready() -> Result<BackupSecrets, String> {
+    if !command_exists("restic") {
+        return Err("restic is not installed".into());
+    }
+    let s = load_secrets();
+    if !valid_repo(&s.repo) {
+        return Err("set a repository path first".into());
+    }
+    if s.password.is_none() {
+        return Err("set a repository password first".into());
+    }
+    Ok(s)
+}
+
+fn restic_args<'a>(repo: &'a str, extra: &'a [&'a str]) -> Vec<&'a str> {
+    let mut args = vec!["--repo", repo];
+    args.extend_from_slice(extra);
+    args
+}
+
+#[tauri::command]
+pub async fn restic_init(app: AppHandle, session_id: String) -> bool {
+    let Ok(s) = require_ready() else {
+        streaming::emit_line(
+            &app,
+            &session_id,
+            "Error: configure repo and password first",
+        );
+        return false;
+    };
+    let password = s.password.clone().unwrap_or_default();
+    let extra = ["init"];
+    let args = restic_args(&s.repo, &extra);
+    streaming::run_hardcoded_env(
+        app,
+        session_id,
+        "restic",
+        &args,
+        &[("RESTIC_PASSWORD", password)],
+    )
+    .await
+}
+
+fn exclude_args(home: &str) -> Vec<String> {
+    let extras = [
+        ".cache",
+        ".local/share/Trash",
+        ".local/share/Steam",
+        ".local/share/containers",
+        ".npm",
+        ".cargo/registry",
+        ".cargo/git",
+        ".rustup",
+        ".var/app",
+    ];
+    let mut args = vec![
+        "--exclude-caches".into(),
+        "--exclude".into(),
+        "node_modules".into(),
+        "--exclude".into(),
+        "target".into(),
+        "--exclude".into(),
+        ".git".into(),
+    ];
+    for rel in extras {
+        args.push("--exclude".into());
+        args.push(format!("{home}/{rel}"));
+    }
+    args
+}
+
+#[tauri::command]
+pub async fn restic_backup(app: AppHandle, session_id: String) -> bool {
+    let s = match require_ready() {
+        Ok(s) => s,
+        Err(e) => {
+            streaming::emit_line(&app, &session_id, &format!("Error: {e}"));
+            return false;
+        }
+    };
+    let home = std::env::var("HOME").unwrap_or_else(|_| "/root".into());
+    let password = s.password.clone().unwrap_or_default();
+    let excludes = exclude_args(&home);
+    let mut args = vec!["--repo".to_string(), s.repo.clone()];
+    args.extend(excludes);
+    args.push("backup".into());
+    args.push(home);
+    let arg_refs: Vec<&str> = args.iter().map(String::as_str).collect();
+    streaming::run_hardcoded_env(
+        app,
+        session_id,
+        "restic",
+        &arg_refs,
+        &[("RESTIC_PASSWORD", password)],
+    )
+    .await
+}
+
+/// `~/bos-restore-<id>`. Never `$HOME` itself — restore writes into a new
+/// directory so a bad snapshot cannot clobber the live home.
+pub fn default_restore_dir(snapshot: &str) -> PathBuf {
+    home_dir().join(format!("bos-restore-{snapshot}"))
+}
+
+fn normalize_abs(path: &Path) -> PathBuf {
+    path.components().collect()
+}
+
+/// Absolute path, not `$HOME` and not `/`. Empty target means the default.
+pub fn valid_restore_target(path: &Path) -> bool {
+    if !path.is_absolute() {
+        return false;
+    }
+    let s = path.to_string_lossy();
+    if s.is_empty() || s.len() > 512 || s.contains('\n') || s.contains('\0') {
+        return false;
+    }
+    let normalized = normalize_abs(path);
+    if normalized == PathBuf::from("/") {
+        return false;
+    }
+    normalized != normalize_abs(&home_dir())
+}
+
+fn resolve_restore_target(snapshot: &str, target: Option<&str>) -> Result<PathBuf, String> {
+    if !valid_snapshot_id(snapshot) {
+        return Err("invalid snapshot id".into());
+    }
+    let dest = match target.map(str::trim).filter(|s| !s.is_empty()) {
+        Some(t) => PathBuf::from(t),
+        None => default_restore_dir(snapshot),
+    };
+    if !valid_restore_target(&dest) {
+        return Err(
+            "restore target must be an absolute path that is not $HOME (default is ~/bos-restore-<id>)"
+                .into(),
+        );
+    }
+    Ok(dest)
+}
+
+async fn run_restic_restore(
+    app: AppHandle,
+    session_id: String,
+    snapshot: String,
+    target: Option<String>,
+    dry_run: bool,
+) -> bool {
+    let s = match require_ready() {
+        Ok(s) => s,
+        Err(e) => {
+            streaming::emit_line(&app, &session_id, &format!("Error: {e}"));
+            return false;
+        }
+    };
+    let snap = snapshot.trim();
+    let dest = match resolve_restore_target(snap, target.as_deref()) {
+        Ok(p) => p,
+        Err(e) => {
+            streaming::emit_line(&app, &session_id, &format!("Error: {e}"));
+            return false;
+        }
+    };
+    let dest_s = dest.to_string_lossy().into_owned();
+    let password = s.password.clone().unwrap_or_default();
+    let mut extra = vec![
+        "restore".to_string(),
+        snap.to_string(),
+        "--target".into(),
+        dest_s.clone(),
+    ];
+    if dry_run {
+        extra.push("--dry-run".into());
+    }
+    streaming::emit_line(
+        &app,
+        &session_id,
+        &format!(
+            "{} {snap} → {dest_s}",
+            if dry_run {
+                "Dry-run restore"
+            } else {
+                "Restoring"
+            }
+        ),
+    );
+    let extra_refs: Vec<&str> = extra.iter().map(String::as_str).collect();
+    let args = restic_args(&s.repo, &extra_refs);
+    streaming::run_hardcoded_env(
+        app,
+        session_id,
+        "restic",
+        &args,
+        &[("RESTIC_PASSWORD", password)],
+    )
+    .await
+}
+
+#[tauri::command]
+pub async fn restic_restore_dry_run(
+    app: AppHandle,
+    session_id: String,
+    snapshot: String,
+    target: Option<String>,
+) -> bool {
+    run_restic_restore(app, session_id, snapshot, target, true).await
+}
+
+#[tauri::command]
+pub async fn restic_restore(
+    app: AppHandle,
+    session_id: String,
+    snapshot: String,
+    target: Option<String>,
+) -> bool {
+    run_restic_restore(app, session_id, snapshot, target, false).await
+}
+
+fn valid_snapshot_id(id: &str) -> bool {
+    if id == "latest" {
+        return true;
+    }
+    let bytes = id.as_bytes();
+    !bytes.is_empty() && bytes.len() <= 64 && bytes.iter().all(|b| b.is_ascii_hexdigit())
+}
+
+#[tauri::command]
+pub async fn list_restic_snapshots() -> Result<Vec<ResticSnapshot>, String> {
+    let s = require_ready()?;
+    let password = s.password.clone().unwrap_or_default();
+    let output = Command::new("restic")
+        .args(["--repo", &s.repo, "snapshots", "--json"])
+        .env("RESTIC_PASSWORD", password)
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
+    if !output.status.success() {
+        return Err(fail_output(&output, "restic snapshots"));
+    }
+    parse_snapshots(&output.stdout)
+}
+
+fn parse_snapshots(bytes: &[u8]) -> Result<Vec<ResticSnapshot>, String> {
+    let v: serde_json::Value =
+        serde_json::from_slice(bytes).map_err(|e| format!("restic json: {e}"))?;
+    let Some(arr) = v.as_array() else {
+        return Ok(Vec::new());
+    };
+    Ok(arr
+        .iter()
+        .filter_map(|s| {
+            let id = s
+                .get("short_id")
+                .or_else(|| s.get("id"))
+                .and_then(|x| x.as_str())?
+                .to_string();
+            let time = s
+                .get("time")
+                .and_then(|x| x.as_str())
+                .unwrap_or("")
+                .to_string();
+            let paths = s
+                .get("paths")
+                .and_then(|x| x.as_array())
+                .map(|a| {
+                    a.iter()
+                        .filter_map(|p| p.as_str().map(str::to_string))
+                        .collect()
+                })
+                .unwrap_or_default();
+            Some(ResticSnapshot { id, time, paths })
+        })
+        .collect())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn repo_accepts_abs_and_sftp() {
+        assert!(valid_repo("/mnt/backup/bos"));
+        assert!(valid_repo("sftp:user@host:/backups/bos"));
+        assert!(!valid_repo("relative/path"));
+        assert!(!valid_repo("sftp:nocolon"));
+        assert!(!valid_repo("sftp:user host:/x"));
+        assert!(!valid_repo(""));
+    }
+
+    #[test]
+    fn snapshot_id_hex_or_latest() {
+        assert!(valid_snapshot_id("latest"));
+        assert!(valid_snapshot_id("a1b2c3d4"));
+        assert!(!valid_snapshot_id("../x"));
+        assert!(!valid_snapshot_id("latest;rm"));
+    }
+
+    #[test]
+    fn write_secure_is_0600_and_keeps_password() {
+        let dir = std::env::temp_dir().join(format!(
+            "bos-settings-backup-{}-{}",
+            std::process::id(),
+            std::time::SystemTime::now()
+                .duration_since(std::time::UNIX_EPOCH)
+                .map(|d| d.as_nanos())
+                .unwrap_or(0)
+        ));
+        std::fs::create_dir_all(&dir).unwrap();
+        let path = dir.join("backup.toml");
+        save_secrets_to(&path, "/tmp/repo", Some("hunter2")).unwrap();
+        let text = std::fs::read_to_string(&path).unwrap();
+        assert!(text.contains("hunter2"));
+        assert!(text.contains("/tmp/repo"));
+        #[cfg(unix)]
+        {
+            use std::os::unix::fs::PermissionsExt;
+            let mode = std::fs::metadata(&path).unwrap().permissions().mode() & 0o777;
+            assert_eq!(mode, 0o600, "backup.toml must be 0600, got {mode:o}");
+        }
+        save_secrets_to(&path, "/tmp/repo2", Some("")).unwrap();
+        let text = std::fs::read_to_string(&path).unwrap();
+        assert!(text.contains("hunter2"), "empty password keeps secret");
+        assert!(text.contains("/tmp/repo2"));
+        let loaded = load_secrets_from(&path);
+        assert_eq!(loaded.password.as_deref(), Some("hunter2"));
+        let _ = std::fs::remove_dir_all(&dir);
+    }
+
+    #[test]
+    fn parse_restic_json() {
+        let json = br#"[{"short_id":"abc123","time":"2026-08-15T01:00:00Z","paths":["/home/a"]}]"#;
+        let v = parse_snapshots(json).unwrap();
+        assert_eq!(v[0].id, "abc123");
+        assert_eq!(v[0].paths[0], "/home/a");
+    }
+
+    #[test]
+    fn restore_defaults_to_bos_restore_id_not_home() {
+        let dest = default_restore_dir("a1b2c3d4");
+        let home = home_dir();
+        assert_eq!(dest, home.join("bos-restore-a1b2c3d4"));
+        assert_ne!(dest, home);
+        assert!(valid_restore_target(&dest));
+        assert!(!valid_restore_target(&home));
+        assert!(!valid_restore_target(Path::new("/")));
+        assert!(!valid_restore_target(Path::new("relative/path")));
+        assert!(valid_restore_target(Path::new("/tmp/bos-restore-custom")));
+        let resolved = resolve_restore_target("latest", None).unwrap();
+        assert_eq!(resolved, home.join("bos-restore-latest"));
+        assert!(resolve_restore_target("latest", Some(home.to_str().unwrap())).is_err());
+    }
+
+    #[test]
+    fn exclude_covers_caches_and_containers() {
+        let args = exclude_args("/home/a");
+        let joined = args.join(" ");
+        assert!(joined.contains("/home/a/.cache"));
+        assert!(joined.contains("/home/a/.local/share/Trash"));
+        assert!(joined.contains("/home/a/.local/share/Steam"));
+        assert!(joined.contains("/home/a/.local/share/containers"));
+        assert!(joined.contains("node_modules"));
+        assert!(joined.contains("target"));
+        assert!(joined.contains(".git"));
+    }
+}

src/src/commands/breadpad.rs

@@ -35,22 +35,35 @@ pub struct BreadpadConfig {
 pub fn get_breadpad_config() -> BreadpadConfig {
     let doc = config::load_doc(&config_path());
     BreadpadConfig {
-        default_type: config::get_str(&doc, &["settings", "default_type"]).unwrap_or_else(|| "note".into()),
+        default_type: config::get_str(&doc, &["settings", "default_type"])
+            .unwrap_or_else(|| "note".into()),
         workspace_tag: config::get_bool(&doc, &["settings", "workspace_tag"]).unwrap_or(true),
         snooze_options: config::get_str_list(&doc, &["settings", "snooze_options"]),
-        archive_after_days: config::get_i64(&doc, &["settings", "archive_after_days"]).unwrap_or(30),
+        archive_after_days: config::get_i64(&doc, &["settings", "archive_after_days"])
+            .unwrap_or(30),
         model_path: config::get_str(&doc, &["model", "path"]).unwrap_or_default(),
         tokenizer_path: config::get_str(&doc, &["model", "tokenizer"]).unwrap_or_default(),
         ollama_enabled: config::get_bool(&doc, &["model", "ollama", "enabled"]).unwrap_or(true),
-        ollama_endpoint: config::get_str(&doc, &["model", "ollama", "endpoint"]).unwrap_or_default(),
+        ollama_endpoint: config::get_str(&doc, &["model", "ollama", "endpoint"])
+            .unwrap_or_default(),
         ollama_model: config::get_str(&doc, &["model", "ollama", "model"]).unwrap_or_default(),
-        ollama_confidence_threshold: config::get_f64(&doc, &["model", "ollama", "confidence_threshold"]).unwrap_or(0.6),
-        reminders_default_morning: config::get_str(&doc, &["reminders", "default_morning"]).unwrap_or_else(|| "7:00".into()),
-        reminders_missed_grace_minutes: config::get_i64(&doc, &["reminders", "missed_grace_minutes"]).unwrap_or(60),
+        ollama_confidence_threshold: config::get_f64(
+            &doc,
+            &["model", "ollama", "confidence_threshold"],
+        )
+        .unwrap_or(0.6),
+        reminders_default_morning: config::get_str(&doc, &["reminders", "default_morning"])
+            .unwrap_or_else(|| "7:00".into()),
+        reminders_missed_grace_minutes: config::get_i64(
+            &doc,
+            &["reminders", "missed_grace_minutes"],
+        )
+        .unwrap_or(60),
         calendar_enabled: config::get_bool(&doc, &["calendar", "enabled"]).unwrap_or(false),
         calendar_url: config::get_str(&doc, &["calendar", "url"]).unwrap_or_default(),
         calendar_username: config::get_str(&doc, &["calendar", "username"]).unwrap_or_default(),
-        calendar_password: config::get_str(&doc, &["calendar", "password"]).unwrap_or_default(),
+        // Write-only to the webview, same as restic — never round-trip the secret.
+        calendar_password: String::new(),
     }
 }
 
@@ -60,19 +73,76 @@ pub fn save_breadpad_config(cfg: BreadpadConfig) -> Result<(), String> {
     let mut doc = config::load_doc(&path);
     config::set_str(&mut doc, &["settings", "default_type"], &cfg.default_type);
     config::set_bool(&mut doc, &["settings", "workspace_tag"], cfg.workspace_tag);
-    config::set_str_list(&mut doc, &["settings", "snooze_options"], &cfg.snooze_options);
-    config::set_i64(&mut doc, &["settings", "archive_after_days"], cfg.archive_after_days);
+    config::set_str_list(
+        &mut doc,
+        &["settings", "snooze_options"],
+        &cfg.snooze_options,
+    );
+    config::set_i64(
+        &mut doc,
+        &["settings", "archive_after_days"],
+        cfg.archive_after_days,
+    );
     config::set_str_or_remove(&mut doc, &["model", "path"], &cfg.model_path);
     config::set_str_or_remove(&mut doc, &["model", "tokenizer"], &cfg.tokenizer_path);
-    config::set_bool(&mut doc, &["model", "ollama", "enabled"], cfg.ollama_enabled);
-    config::set_str_or_remove(&mut doc, &["model", "ollama", "endpoint"], &cfg.ollama_endpoint);
+    config::set_bool(
+        &mut doc,
+        &["model", "ollama", "enabled"],
+        cfg.ollama_enabled,
+    );
+    config::set_str_or_remove(
+        &mut doc,
+        &["model", "ollama", "endpoint"],
+        &cfg.ollama_endpoint,
+    );
     config::set_str_or_remove(&mut doc, &["model", "ollama", "model"], &cfg.ollama_model);
-    config::set_f64(&mut doc, &["model", "ollama", "confidence_threshold"], cfg.ollama_confidence_threshold);
-    config::set_str_or_remove(&mut doc, &["reminders", "default_morning"], &cfg.reminders_default_morning);
-    config::set_i64(&mut doc, &["reminders", "missed_grace_minutes"], cfg.reminders_missed_grace_minutes);
+    config::set_f64(
+        &mut doc,
+        &["model", "ollama", "confidence_threshold"],
+        cfg.ollama_confidence_threshold,
+    );
+    config::set_str_or_remove(
+        &mut doc,
+        &["reminders", "default_morning"],
+        &cfg.reminders_default_morning,
+    );
+    config::set_i64(
+        &mut doc,
+        &["reminders", "missed_grace_minutes"],
+        cfg.reminders_missed_grace_minutes,
+    );
     config::set_bool(&mut doc, &["calendar", "enabled"], cfg.calendar_enabled);
     config::set_str_or_remove(&mut doc, &["calendar", "url"], &cfg.calendar_url);
     config::set_str_or_remove(&mut doc, &["calendar", "username"], &cfg.calendar_username);
-    config::set_str_or_remove(&mut doc, &["calendar", "password"], &cfg.calendar_password);
+    apply_calendar_password(&mut doc, &cfg.calendar_password);
     config::save_doc(&path, &doc).map_err(|e| e.to_string())
 }
+
+/// Empty incoming password keeps the existing secret (PasswordField is write-only).
+fn apply_calendar_password(doc: &mut toml_edit::DocumentMut, incoming: &str) {
+    if incoming.is_empty() {
+        return;
+    }
+    config::set_str(doc, &["calendar", "password"], incoming);
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn empty_password_keeps_existing_secret() {
+        let mut doc: toml_edit::DocumentMut =
+            "[calendar]\npassword = \"secret\"\n".parse().unwrap();
+        apply_calendar_password(&mut doc, "");
+        assert_eq!(
+            config::get_str(&doc, &["calendar", "password"]).as_deref(),
+            Some("secret")
+        );
+        apply_calendar_password(&mut doc, "newpass");
+        assert_eq!(
+            config::get_str(&doc, &["calendar", "password"]).as_deref(),
+            Some("newpass")
+        );
+    }
+}

src/src/commands/channel.rs

@@ -0,0 +1,91 @@
+//! Bakery track (stable / beta / dev). Preference only — `bakery update
+//! --all` afterwards actually installs the new track's builds.
+
+use serde::Serialize;
+use tokio::process::Command;
+
+use super::util::{fail_output, strip_ansi};
+
+const TRACKS: &[&str] = &["stable", "beta", "dev"];
+
+#[derive(Serialize)]
+pub struct BakeryTrack {
+    current: String,
+    tracks: Vec<String>,
+}
+
+fn parse_track_show(text: &str) -> String {
+    let text = strip_ansi(text);
+    for line in text.lines() {
+        let line = line.trim();
+        let lower = line.to_ascii_lowercase();
+        if let Some(rest) = lower.strip_prefix("current track:") {
+            let raw = line[line.len() - rest.len()..].trim();
+            return raw.to_ascii_lowercase();
+        }
+        if TRACKS.contains(&line) {
+            return line.to_string();
+        }
+    }
+    let lower = text.to_ascii_lowercase();
+    for track in TRACKS {
+        if lower.contains(track) {
+            return (*track).to_string();
+        }
+    }
+    "stable".into()
+}
+
+#[tauri::command]
+pub async fn get_bakery_track() -> Result<BakeryTrack, String> {
+    let output = Command::new("bakery")
+        .args(["track", "show"])
+        .output()
+        .await
+        .map_err(|e| format!("couldn't run bakery: {e}"))?;
+    if !output.status.success() {
+        return Err(fail_output(&output, "bakery track show"));
+    }
+    let text = String::from_utf8_lossy(&output.stdout);
+    Ok(BakeryTrack {
+        current: parse_track_show(&text),
+        tracks: TRACKS.iter().map(|s| (*s).to_string()).collect(),
+    })
+}
+
+#[tauri::command]
+pub async fn set_bakery_track(track: String) -> Result<BakeryTrack, String> {
+    let track = track.trim().to_ascii_lowercase();
+    if !TRACKS.contains(&track.as_str()) {
+        return Err(format!(
+            "unknown track '{track}' — expected stable, beta, or dev"
+        ));
+    }
+    let output = Command::new("bakery")
+        .args(["track", "set", &track])
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
+    if !output.status.success() {
+        return Err(fail_output(&output, "bakery track set"));
+    }
+    get_bakery_track().await
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn parses_current_track_line() {
+        assert_eq!(parse_track_show("current track: dev\n"), "dev");
+        assert_eq!(parse_track_show("current track: stable"), "stable");
+        assert_eq!(parse_track_show("beta"), "beta");
+    }
+
+    #[test]
+    fn rejects_unknown_in_set_guard() {
+        assert!(!TRACKS.contains(&"nightly"));
+        assert!(TRACKS.contains(&"stable"));
+    }
+}

src/src/commands/datetime.rs

@@ -26,7 +26,12 @@ async fn list_timezones() -> Vec<String> {
         .output()
         .await
         .ok()
-        .map(|o| String::from_utf8_lossy(&o.stdout).lines().map(str::to_string).collect())
+        .map(|o| {
+            String::from_utf8_lossy(&o.stdout)
+                .lines()
+                .map(str::to_string)
+                .collect()
+        })
         .unwrap_or_default()
 }
 
@@ -60,10 +65,32 @@ pub async fn get_datetime_info() -> DateTimeInfo {
     }
 }
 
+/// Reject flags, path traversal, and newlines before we ever exec. Charset
+/// matches IANA names (`Area/City`, `UTC`, `Etc/GMT+6`).
+fn timezone_looks_safe(tz: &str) -> bool {
+    let tz = tz.trim();
+    if tz.is_empty() || tz.len() > 64 || tz.starts_with('-') {
+        return false;
+    }
+    if tz.contains('\n') || tz.contains('\r') || tz.contains('\0') || tz.contains("..") {
+        return false;
+    }
+    tz.chars()
+        .all(|c| c.is_ascii_alphanumeric() || matches!(c, '/' | '_' | '+' | '-'))
+}
+
 #[tauri::command]
 pub async fn set_timezone(tz: String) -> Result<(), String> {
+    let tz = tz.trim();
+    if !timezone_looks_safe(tz) {
+        return Err("invalid timezone".into());
+    }
+    let listed = list_timezones().await;
+    if !listed.is_empty() && !listed.iter().any(|t| t == tz) {
+        return Err("unknown timezone".into());
+    }
     let output = Command::new("pkexec")
-        .args(["timedatectl", "set-timezone", &tz])
+        .args(["timedatectl", "set-timezone", tz])
         .output()
         .await
         .map_err(|e| e.to_string())?;
@@ -77,6 +104,28 @@ pub async fn set_timezone(tz: String) -> Result<(), String> {
 #[tauri::command]
 pub async fn set_ntp_enabled(enabled: bool) -> Result<(), String> {
     let val = if enabled { "true" } else { "false" };
-    Command::new("pkexec").args(["timedatectl", "set-ntp", val]).status().await.map_err(|e| e.to_string())?;
+    Command::new("pkexec")
+        .args(["timedatectl", "set-ntp", val])
+        .status()
+        .await
+        .map_err(|e| e.to_string())?;
     Ok(())
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn timezone_rejects_flags_and_traversal() {
+        assert!(timezone_looks_safe("UTC"));
+        assert!(timezone_looks_safe("America/New_York"));
+        assert!(timezone_looks_safe("Etc/GMT+6"));
+        assert!(!timezone_looks_safe(""));
+        assert!(!timezone_looks_safe("-UTC"));
+        assert!(!timezone_looks_safe("--help"));
+        assert!(!timezone_looks_safe("America/../UTC"));
+        assert!(!timezone_looks_safe("UTC\n--adjust"));
+        assert!(!timezone_looks_safe("UTC;reboot"));
+    }
+}

src/src/commands/defaults.rs

@@ -0,0 +1,431 @@
+//! Default applications via `~/.config/mimeapps.list`. Categories cover
+//! the associations BOS already ships in skel (browser, files, images,
+//! PDF, editor) plus a terminal entry.
+
+use std::collections::{BTreeMap, HashMap};
+use std::path::PathBuf;
+
+use serde::Serialize;
+
+use super::config;
+
+const CATEGORIES: &[(&str, &[&str])] = &[
+    (
+        "browser",
+        &[
+            "x-scheme-handler/http",
+            "x-scheme-handler/https",
+            "text/html",
+        ],
+    ),
+    ("files", &["inode/directory"]),
+    ("terminal", &["x-scheme-handler/terminal"]),
+    (
+        "image",
+        &[
+            "image/png",
+            "image/jpeg",
+            "image/webp",
+            "image/gif",
+            "image/svg+xml",
+        ],
+    ),
+    ("pdf", &["application/pdf"]),
+    ("editor", &["text/plain", "text/markdown"]),
+];
+
+#[derive(Serialize, Clone)]
+pub struct DesktopApp {
+    id: String,
+    name: String,
+}
+
+#[derive(Serialize)]
+pub struct DefaultsStatus {
+    path: String,
+    current: HashMap<String, String>,
+    options: HashMap<String, Vec<DesktopApp>>,
+}
+
+fn mimeapps_path() -> PathBuf {
+    config::config_dir().join("mimeapps.list")
+}
+
+fn xdg_terminals_path() -> PathBuf {
+    config::config_dir().join("xdg-terminals.list")
+}
+
+fn applications_dirs() -> Vec<PathBuf> {
+    let mut dirs = vec![
+        PathBuf::from("/usr/share/applications"),
+        PathBuf::from("/usr/local/share/applications"),
+    ];
+    if let Ok(home) = std::env::var("HOME") {
+        dirs.push(PathBuf::from(home).join(".local/share/applications"));
+    }
+    dirs
+}
+
+#[derive(Clone)]
+struct DesktopMeta {
+    id: String,
+    name: String,
+    mimes: Vec<String>,
+    terminal: bool,
+}
+
+fn parse_desktop(id: &str, text: &str) -> Option<DesktopMeta> {
+    let mut in_entry = false;
+    let mut name = String::new();
+    let mut mimes = Vec::new();
+    let mut terminal = false;
+    let mut hidden = false;
+    for line in text.lines() {
+        let line = line.trim();
+        if line.starts_with('[') {
+            in_entry = line.eq_ignore_ascii_case("[Desktop Entry]");
+            continue;
+        }
+        if !in_entry {
+            continue;
+        }
+        if let Some(v) = line.strip_prefix("Name=") {
+            if name.is_empty() {
+                name = v.to_string();
+            }
+        } else if let Some(v) = line.strip_prefix("MimeType=") {
+            mimes = v
+                .split(';')
+                .map(str::trim)
+                .filter(|s| !s.is_empty())
+                .map(str::to_string)
+                .collect();
+        } else if let Some(v) = line.strip_prefix("Categories=") {
+            terminal |= v.split(';').any(|c| c.trim() == "TerminalEmulator");
+        } else if line == "Hidden=true" || line == "NoDisplay=true" {
+            hidden = true;
+        }
+    }
+    if hidden || name.is_empty() {
+        return None;
+    }
+    Some(DesktopMeta {
+        id: id.to_string(),
+        name,
+        mimes,
+        terminal,
+    })
+}
+
+fn scan_desktops() -> Vec<DesktopMeta> {
+    let mut out = Vec::new();
+    let mut seen = std::collections::HashSet::new();
+    for dir in applications_dirs() {
+        let Ok(entries) = std::fs::read_dir(dir) else {
+            continue;
+        };
+        for entry in entries.flatten() {
+            let path = entry.path();
+            if path.extension().and_then(|e| e.to_str()) != Some("desktop") {
+                continue;
+            }
+            let Some(id) = path.file_name().and_then(|n| n.to_str()) else {
+                continue;
+            };
+            if !seen.insert(id.to_string()) {
+                continue;
+            }
+            let Ok(text) = std::fs::read_to_string(&path) else {
+                continue;
+            };
+            if let Some(meta) = parse_desktop(id, &text) {
+                out.push(meta);
+            }
+        }
+    }
+    out.sort_by_key(|a| a.name.to_lowercase());
+    out
+}
+
+fn parse_default_applications(text: &str) -> BTreeMap<String, String> {
+    let mut map = BTreeMap::new();
+    let mut in_defaults = false;
+    for line in text.lines() {
+        let t = line.trim();
+        if t.starts_with('[') {
+            in_defaults = t.eq_ignore_ascii_case("[Default Applications]");
+            continue;
+        }
+        if !in_defaults || t.is_empty() || t.starts_with('#') {
+            continue;
+        }
+        if let Some((k, v)) = t.split_once('=') {
+            let desktop = v.split(';').next().unwrap_or("").trim();
+            if !desktop.is_empty() {
+                map.insert(k.trim().to_string(), desktop.to_string());
+            }
+        }
+    }
+    map
+}
+
+fn current_for_category(defaults: &BTreeMap<String, String>, mimes: &[&str]) -> String {
+    for mime in mimes {
+        if let Some(v) = defaults.get(*mime) {
+            return v.clone();
+        }
+    }
+    String::new()
+}
+
+fn options_for(
+    apps: &[DesktopMeta],
+    category: &str,
+    mimes: &[&str],
+    current: &str,
+) -> Vec<DesktopApp> {
+    let mut out = Vec::new();
+    let mut seen = std::collections::HashSet::new();
+    for app in apps {
+        let matches = if category == "terminal" {
+            app.terminal || app.mimes.iter().any(|m| mimes.contains(&m.as_str()))
+        } else {
+            app.mimes.iter().any(|m| mimes.contains(&m.as_str()))
+        };
+        if matches && seen.insert(app.id.clone()) {
+            out.push(DesktopApp {
+                id: app.id.clone(),
+                name: app.name.clone(),
+            });
+        }
+    }
+    if !current.is_empty() && !seen.contains(current) {
+        out.insert(
+            0,
+            DesktopApp {
+                id: current.to_string(),
+                name: current.trim_end_matches(".desktop").to_string(),
+            },
+        );
+    }
+    out
+}
+
+#[tauri::command]
+pub fn get_default_apps() -> DefaultsStatus {
+    let path = mimeapps_path();
+    let text = std::fs::read_to_string(&path).unwrap_or_default();
+    let defaults = parse_default_applications(&text);
+    let apps = scan_desktops();
+    let mut current = HashMap::new();
+    let mut options = HashMap::new();
+    for (cat, mimes) in CATEGORIES {
+        let cur = if *cat == "terminal" {
+            read_terminal_default(&defaults)
+        } else {
+            current_for_category(&defaults, mimes)
+        };
+        options.insert((*cat).to_string(), options_for(&apps, cat, mimes, &cur));
+        current.insert((*cat).to_string(), cur);
+    }
+    DefaultsStatus {
+        path: path.display().to_string(),
+        current,
+        options,
+    }
+}
+
+fn read_terminal_default(defaults: &BTreeMap<String, String>) -> String {
+    if let Ok(text) = std::fs::read_to_string(xdg_terminals_path()) {
+        if let Some(id) = text
+            .lines()
+            .map(str::trim)
+            .find(|l| !l.is_empty() && !l.starts_with('#'))
+        {
+            return id.to_string();
+        }
+    }
+    current_for_category(defaults, &["x-scheme-handler/terminal"])
+}
+
+#[derive(serde::Deserialize)]
+pub struct SaveDefaultsInput {
+    current: HashMap<String, String>,
+}
+
+#[tauri::command]
+pub fn save_default_apps(input: SaveDefaultsInput) -> Result<(), String> {
+    let path = mimeapps_path();
+    let existing = std::fs::read_to_string(&path).unwrap_or_default();
+    let mut replacements = BTreeMap::new();
+    for (cat, mimes) in CATEGORIES {
+        let Some(desktop) = input.current.get(*cat).map(|s| s.trim()) else {
+            continue;
+        };
+        if desktop.is_empty() {
+            continue;
+        }
+        if !valid_desktop_id(desktop) {
+            return Err(format!("invalid desktop id '{desktop}'"));
+        }
+        for mime in *mimes {
+            replacements.insert((*mime).to_string(), desktop.to_string());
+        }
+        if *cat == "terminal" {
+            write_terminal_list(desktop)?;
+        }
+    }
+    let text = upsert_defaults(&existing, &replacements);
+    if let Some(parent) = path.parent() {
+        std::fs::create_dir_all(parent).map_err(|e| e.to_string())?;
+    }
+    config::atomic_write(&path, &text).map_err(|e| e.to_string())
+}
+
+fn write_terminal_list(desktop: &str) -> Result<(), String> {
+    let path = xdg_terminals_path();
+    if let Some(parent) = path.parent() {
+        std::fs::create_dir_all(parent).map_err(|e| e.to_string())?;
+    }
+    config::atomic_write(&path, &format!("{desktop}\n")).map_err(|e| e.to_string())
+}
+
+fn valid_desktop_id(id: &str) -> bool {
+    let bytes = id.as_bytes();
+    bytes.ends_with(b".desktop")
+        && bytes.len() > ".desktop".len()
+        && bytes.len() <= 128
+        && bytes
+            .iter()
+            .all(|b| b.is_ascii_alphanumeric() || matches!(*b, b'-' | b'_' | b'.' | b'+'))
+}
+
+fn upsert_defaults(existing: &str, replacements: &BTreeMap<String, String>) -> String {
+    if existing.trim().is_empty() {
+        let mut out = String::from("[Default Applications]\n");
+        for (mime, desktop) in replacements {
+            out.push_str(&format!("{mime}={desktop}\n"));
+        }
+        return out;
+    }
+    let mut out = String::new();
+    let mut in_defaults = false;
+    let mut seen = std::collections::HashSet::new();
+    let mut wrote_header = false;
+    for line in existing.lines() {
+        let t = line.trim();
+        if t.starts_with('[') {
+            if in_defaults {
+                for (mime, desktop) in replacements {
+                    if seen.insert(mime.clone()) {
+                        out.push_str(&format!("{mime}={desktop}\n"));
+                    }
+                }
+            }
+            in_defaults = t.eq_ignore_ascii_case("[Default Applications]");
+            if in_defaults {
+                wrote_header = true;
+            }
+            out.push_str(line);
+            out.push('\n');
+            continue;
+        }
+        if in_defaults {
+            if let Some((k, _)) = t.split_once('=') {
+                let key = k.trim();
+                if let Some(desktop) = replacements.get(key) {
+                    out.push_str(&format!("{key}={desktop}\n"));
+                    seen.insert(key.to_string());
+                    continue;
+                }
+            }
+        }
+        out.push_str(line);
+        out.push('\n');
+    }
+    if in_defaults {
+        for (mime, desktop) in replacements {
+            if seen.insert(mime.clone()) {
+                out.push_str(&format!("{mime}={desktop}\n"));
+            }
+        }
+    } else if !wrote_header {
+        if !out.ends_with('\n') && !out.is_empty() {
+            out.push('\n');
+        }
+        out.push_str("\n[Default Applications]\n");
+        for (mime, desktop) in replacements {
+            out.push_str(&format!("{mime}={desktop}\n"));
+        }
+    }
+    out
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn parse_skel_defaults() {
+        let text = "\
+[Default Applications]
+text/html=zen.desktop
+x-scheme-handler/http=zen.desktop
+inode/directory=org.gnome.Nautilus.desktop
+";
+        let map = parse_default_applications(text);
+        assert_eq!(map.get("text/html").unwrap(), "zen.desktop");
+        assert_eq!(
+            current_for_category(&map, &["x-scheme-handler/http", "text/html"]),
+            "zen.desktop"
+        );
+    }
+
+    #[test]
+    fn upsert_replaces_only_named_keys() {
+        let existing = "\
+# keep
+[Default Applications]
+text/html=old.desktop
+image/png=org.gnome.Loupe.desktop
+
+[Added Associations]
+text/html=extra.desktop;
+";
+        let mut rep = BTreeMap::new();
+        rep.insert("text/html".into(), "zen.desktop".into());
+        rep.insert("x-scheme-handler/http".into(), "zen.desktop".into());
+        let out = upsert_defaults(existing, &rep);
+        assert!(out.contains("# keep"));
+        assert!(out.contains("text/html=zen.desktop"));
+        assert!(out.contains("x-scheme-handler/http=zen.desktop"));
+        assert!(out.contains("image/png=org.gnome.Loupe.desktop"));
+        assert!(out.contains("[Added Associations]"));
+        assert!(out.contains("text/html=extra.desktop;"));
+        assert_eq!(out.matches("text/html=zen.desktop").count(), 1);
+    }
+
+    #[test]
+    fn desktop_id_check() {
+        assert!(valid_desktop_id("zen.desktop"));
+        assert!(valid_desktop_id("org.gnome.Nautilus.desktop"));
+        assert!(!valid_desktop_id("zen"));
+        assert!(!valid_desktop_id("../evil.desktop"));
+    }
+
+    #[test]
+    fn parse_desktop_skips_hidden() {
+        let hidden = parse_desktop(
+            "x.desktop",
+            "[Desktop Entry]\nName=X\nNoDisplay=true\nMimeType=text/plain;\n",
+        );
+        assert!(hidden.is_none());
+        let ok = parse_desktop(
+            "ed.desktop",
+            "[Desktop Entry]\nName=Editor\nMimeType=text/plain;\nCategories=Utility;\n",
+        )
+        .unwrap();
+        assert_eq!(ok.name, "Editor");
+        assert!(ok.mimes.contains(&"text/plain".into()));
+    }
+}

src/src/commands/firewall.rs

@@ -32,7 +32,9 @@ pub async fn get_firewall_status() -> Result<FirewallStatus, String> {
         let stderr = String::from_utf8_lossy(&output.stderr).trim().to_string();
         return Err(if stderr.is_empty() {
             match output.status.code() {
-                Some(127) => "no polkit authentication agent is available in this session".to_string(),
+                Some(127) => {
+                    "no polkit authentication agent is available in this session".to_string()
+                }
                 Some(code) => format!("pkexec exited with status {code}"),
                 None => "pkexec was terminated by a signal".to_string(),
             }
@@ -41,7 +43,10 @@ pub async fn get_firewall_status() -> Result<FirewallStatus, String> {
         });
     }
     let text = String::from_utf8_lossy(&output.stdout);
-    let active = text.lines().next().is_some_and(|l| l.trim() == "Status: active");
+    let active = text
+        .lines()
+        .next()
+        .is_some_and(|l| l.trim() == "Status: active");
     let rules = text
         .lines()
         .filter_map(|l| {
@@ -51,7 +56,10 @@ pub async fn get_firewall_status() -> Result<FirewallStatus, String> {
             }
             let (num, rest) = l.split_once(']')?;
             let number = num.trim_start_matches('[').trim().to_string();
-            Some(FirewallRule { number, text: rest.trim().to_string() })
+            Some(FirewallRule {
+                number,
+                text: rest.trim().to_string(),
+            })
         })
         .collect();
     Ok(FirewallStatus { active, rules })
@@ -60,7 +68,11 @@ pub async fn get_firewall_status() -> Result<FirewallStatus, String> {
 #[tauri::command]
 pub async fn set_firewall_enabled(enabled: bool) -> Result<(), String> {
     let verb = if enabled { "enable" } else { "disable" };
-    let output = Command::new("pkexec").args(["ufw", "--force", verb]).output().await.map_err(|e| e.to_string())?;
+    let output = Command::new("pkexec")
+        .args(["ufw", "--force", verb])
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
     if output.status.success() {
         Ok(())
     } else {
@@ -68,9 +80,54 @@ pub async fn set_firewall_enabled(enabled: bool) -> Result<(), String> {
     }
 }
 
+/// Port, optional `/tcp`/`/udp`, or optional space-separated proto. No
+/// service names, IPs, or flags — those become extra `ufw allow` operands.
+fn valid_firewall_rule(rule: &str) -> bool {
+    let rule = rule.trim();
+    if rule.is_empty() || rule.len() > 16 || rule.starts_with('-') {
+        return false;
+    }
+    if rule.contains('\n') || rule.contains('\r') || rule.contains('\0') {
+        return false;
+    }
+    let (port, proto) = if let Some((p, rest)) = rule.split_once('/') {
+        (p, Some(rest))
+    } else if let Some((p, rest)) = rule.split_once(' ') {
+        (p, Some(rest.trim()))
+    } else {
+        (rule, None)
+    };
+    let Ok(n) = port.parse::<u16>() else {
+        return false;
+    };
+    if n == 0 {
+        return false;
+    }
+    match proto {
+        None => true,
+        Some(p) => p == "tcp" || p == "udp",
+    }
+}
+
+fn valid_rule_number(number: &str) -> bool {
+    let t = number.trim();
+    !t.is_empty()
+        && t.len() <= 8
+        && t.bytes().all(|b| b.is_ascii_digit())
+        && t.parse::<u32>().is_ok_and(|n| n > 0)
+}
+
 #[tauri::command]
 pub async fn add_firewall_rule(rule: String) -> Result<(), String> {
-    let output = Command::new("pkexec").args(["ufw", "allow", rule.trim()]).output().await.map_err(|e| e.to_string())?;
+    let rule = rule.trim();
+    if !valid_firewall_rule(rule) {
+        return Err("invalid firewall rule".into());
+    }
+    let output = Command::new("pkexec")
+        .args(["ufw", "allow", rule])
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
     if output.status.success() {
         Ok(())
     } else {
@@ -80,10 +137,48 @@ pub async fn add_firewall_rule(rule: String) -> Result<(), String> {
 
 #[tauri::command]
 pub async fn remove_firewall_rule(number: String) -> Result<(), String> {
-    let output = Command::new("pkexec").args(["ufw", "--force", "delete", &number]).output().await.map_err(|e| e.to_string())?;
+    if !valid_rule_number(&number) {
+        return Err("invalid rule number".into());
+    }
+    let output = Command::new("pkexec")
+        .args(["ufw", "--force", "delete", number.trim()])
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
     if output.status.success() {
         Ok(())
     } else {
         Err(String::from_utf8_lossy(&output.stderr).trim().to_string())
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn firewall_rule_is_port_and_optional_proto() {
+        assert!(valid_firewall_rule("22"));
+        assert!(valid_firewall_rule("8080/tcp"));
+        assert!(valid_firewall_rule("53/udp"));
+        assert!(valid_firewall_rule("80 tcp"));
+        assert!(!valid_firewall_rule("OpenSSH"));
+        assert!(!valid_firewall_rule("-f"));
+        assert!(!valid_firewall_rule("22;id"));
+        assert!(!valid_firewall_rule("22/tcp\nallow 23"));
+        assert!(!valid_firewall_rule("0"));
+        assert!(!valid_firewall_rule("65536"));
+        assert!(!valid_firewall_rule("22/all"));
+    }
+
+    #[test]
+    fn firewall_delete_is_positive_int() {
+        assert!(valid_rule_number("1"));
+        assert!(valid_rule_number("12"));
+        assert!(!valid_rule_number("0"));
+        assert!(!valid_rule_number("-1"));
+        assert!(!valid_rule_number("1;2"));
+        assert!(!valid_rule_number("1\n2"));
+        assert!(!valid_rule_number(""));
+    }
+}

src/src/commands/ime.rs

@@ -0,0 +1,177 @@
+//! fcitx5 input method for this session: environment.d + Hyprland env +
+//! systemd --user / `fcitx5 -d`. Missing packages are offered via the
+//! allowlisted pacman installer, not installed on page load.
+
+use serde::Serialize;
+use tokio::process::Command;
+
+use super::config;
+use super::util::{self, command_exists, pacman_installed};
+
+const FRAGMENT: &str = "fcitx5.conf";
+const ENV_FILE: &str = "90-fcitx5.conf";
+
+const ENV_LINES_SYSTEMD: &str = "\
+GTK_IM_MODULE=fcitx
+QT_IM_MODULE=fcitx
+XMODIFIERS=@im=fcitx
+SDL_IM_MODULE=fcitx
+";
+
+const ENV_LINES_HYPR: &str = "\
+env = GTK_IM_MODULE,fcitx
+env = QT_IM_MODULE,fcitx
+env = XMODIFIERS,@im=fcitx
+env = SDL_IM_MODULE,fcitx
+exec-once = fcitx5 -d
+";
+
+#[derive(Serialize, Clone)]
+pub struct ImePackage {
+    name: String,
+    installed: bool,
+}
+
+#[derive(Serialize)]
+pub struct ImeStatus {
+    enabled: bool,
+    running: bool,
+    packages: Vec<ImePackage>,
+    error: Option<String>,
+}
+
+fn env_path() -> std::path::PathBuf {
+    config::config_dir().join("environment.d").join(ENV_FILE)
+}
+
+fn wanted_packages() -> &'static [&'static str] {
+    &[
+        "fcitx5",
+        "fcitx5-gtk",
+        "fcitx5-qt",
+        "fcitx5-configtool",
+        "fcitx5-chinese-addons",
+    ]
+}
+
+fn packages_status() -> Vec<ImePackage> {
+    wanted_packages()
+        .iter()
+        .map(|name| ImePackage {
+            name: (*name).to_string(),
+            installed: pacman_installed(name),
+        })
+        .collect()
+}
+
+fn env_file_present() -> bool {
+    env_path().is_file()
+}
+
+async fn fcitx_running() -> bool {
+    Command::new("pgrep")
+        .args(["-x", "fcitx5"])
+        .status()
+        .await
+        .map(|s| s.success())
+        .unwrap_or(false)
+}
+
+#[tauri::command]
+pub async fn get_ime_status() -> ImeStatus {
+    ImeStatus {
+        enabled: env_file_present(),
+        running: fcitx_running().await,
+        packages: packages_status(),
+        error: None,
+    }
+}
+
+#[tauri::command]
+pub async fn set_ime_enabled(enabled: bool) -> Result<ImeStatus, String> {
+    if enabled {
+        enable_ime().await?;
+    } else {
+        disable_ime().await?;
+    }
+    Ok(ImeStatus {
+        enabled: env_file_present(),
+        running: fcitx_running().await,
+        packages: packages_status(),
+        error: None,
+    })
+}
+
+async fn enable_ime() -> Result<(), String> {
+    if !command_exists("fcitx5") {
+        return Err("fcitx5 is not installed".into());
+    }
+    let env = env_path();
+    if let Some(parent) = env.parent() {
+        std::fs::create_dir_all(parent).map_err(|e| e.to_string())?;
+    }
+    config::atomic_write(&env, ENV_LINES_SYSTEMD).map_err(|e| e.to_string())?;
+
+    let hypr = util::hypr_dir().join(FRAGMENT);
+    std::fs::create_dir_all(util::hypr_dir()).map_err(|e| e.to_string())?;
+    config::atomic_write(&hypr, ENV_LINES_HYPR).map_err(|e| e.to_string())?;
+    util::ensure_hypr_source(FRAGMENT)?;
+
+    let _ = Command::new("systemctl")
+        .args([
+            "--user",
+            "import-environment",
+            "GTK_IM_MODULE",
+            "QT_IM_MODULE",
+            "XMODIFIERS",
+            "SDL_IM_MODULE",
+        ])
+        .status()
+        .await;
+
+    let enabled_unit = Command::new("systemctl")
+        .args(["--user", "enable", "--now", "fcitx5.service"])
+        .status()
+        .await
+        .map(|s| s.success())
+        .unwrap_or(false);
+    if !enabled_unit && !fcitx_running().await {
+        std::process::Command::new("fcitx5")
+            .arg("-d")
+            .stdin(std::process::Stdio::null())
+            .stdout(std::process::Stdio::null())
+            .stderr(std::process::Stdio::null())
+            .spawn()
+            .map_err(|e| format!("couldn't start fcitx5: {e}"))?;
+    }
+    Ok(())
+}
+
+async fn disable_ime() -> Result<(), String> {
+    let _ = std::fs::remove_file(env_path());
+    let _ = std::fs::remove_file(util::hypr_dir().join(FRAGMENT));
+    util::remove_hypr_source(FRAGMENT)?;
+    let _ = Command::new("systemctl")
+        .args(["--user", "disable", "--now", "fcitx5.service"])
+        .status()
+        .await;
+    let _ = Command::new("pkill").args(["-x", "fcitx5"]).status().await;
+    Ok(())
+}
+
+#[tauri::command]
+pub fn open_fcitx_config() {
+    let _ = std::process::Command::new("fcitx5-configtool").spawn();
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn env_files_use_fcitx_module_name() {
+        assert!(ENV_LINES_SYSTEMD.contains("GTK_IM_MODULE=fcitx"));
+        assert!(ENV_LINES_HYPR.contains("XMODIFIERS,@im=fcitx"));
+        assert!(ENV_LINES_HYPR.contains("exec-once = fcitx5 -d"));
+    }
+}

src/src/commands/mod.rs

@@ -1,7 +1,9 @@
+pub mod a11y;
 pub mod about;
 pub mod appearance;
 pub mod aur;
 pub mod autostart;
+pub mod backup;
 pub mod bluetooth;
 pub mod bread;
 pub mod breadbar;
@@ -15,18 +17,28 @@ pub mod breadpad;
 pub mod breadpaper;
 pub mod breadsearch;
 pub mod breadshot;
+pub mod channel;
 pub mod config;
 pub mod datetime;
+pub mod defaults;
 pub mod firewall;
 pub mod firmware;
 pub mod hyprland;
+pub mod ime;
 pub mod keybinds;
 pub mod network;
+pub mod nightlight;
+pub mod nvidia;
+pub mod optional;
 pub mod packages;
 pub mod power;
+pub mod printing;
 pub mod service;
 pub mod snapshots;
 pub mod sound;
 pub mod streaming;
 pub mod theme;
+pub mod updates;
 pub mod users;
+pub mod util;
+pub mod vpn;

src/src/commands/nightlight.rs

@@ -0,0 +1,216 @@
+//! Night light via hyprsunset (Hyprland twilight IPC). The compositor
+//! talks to a hyprsunset daemon socket; if the binary is missing we offer
+//! a pacman install rather than pretending the toggle works.
+
+use serde::{Deserialize, Serialize};
+use tokio::process::Command;
+
+use super::config;
+use super::util::{self, command_exists, fail_output};
+
+const FRAGMENT: &str = "nightlight.conf";
+const DEFAULT_TEMP: u32 = 3500;
+const MIN_TEMP: u32 = 2000;
+const MAX_TEMP: u32 = 6500;
+
+#[derive(Serialize, Deserialize, Clone)]
+pub struct NightlightConfig {
+    enabled: bool,
+    temperature: u32,
+}
+
+impl Default for NightlightConfig {
+    fn default() -> Self {
+        Self {
+            enabled: false,
+            temperature: DEFAULT_TEMP,
+        }
+    }
+}
+
+#[derive(Serialize)]
+pub struct NightlightStatus {
+    installed: bool,
+    running: bool,
+    enabled: bool,
+    temperature: u32,
+    error: Option<String>,
+}
+
+fn persist_path() -> std::path::PathBuf {
+    util::bos_settings_dir().join("nightlight.toml")
+}
+
+fn load_persist() -> NightlightConfig {
+    let Ok(text) = std::fs::read_to_string(persist_path()) else {
+        return NightlightConfig::default();
+    };
+    let doc = text.parse::<toml_edit::DocumentMut>().unwrap_or_default();
+    NightlightConfig {
+        enabled: config::get_bool(&doc, &["enabled"]).unwrap_or(false),
+        temperature: config::get_i64(&doc, &["temperature"])
+            .unwrap_or(DEFAULT_TEMP as i64)
+            .clamp(MIN_TEMP as i64, MAX_TEMP as i64) as u32,
+    }
+}
+
+fn save_persist(cfg: &NightlightConfig) -> Result<(), String> {
+    let mut doc = toml_edit::DocumentMut::new();
+    config::set_bool(&mut doc, &["enabled"], cfg.enabled);
+    config::set_i64(&mut doc, &["temperature"], cfg.temperature as i64);
+    let path = persist_path();
+    if let Some(parent) = path.parent() {
+        std::fs::create_dir_all(parent).map_err(|e| e.to_string())?;
+    }
+    config::atomic_write(&path, &doc.to_string()).map_err(|e| e.to_string())
+}
+
+fn clamp_temp(t: u32) -> u32 {
+    t.clamp(MIN_TEMP, MAX_TEMP)
+}
+
+async fn hyprsunset_running() -> bool {
+    Command::new("hyprctl")
+        .args(["hyprsunset", "gamma", "1.0"])
+        .output()
+        .await
+        .map(|o| o.status.success())
+        .unwrap_or(false)
+}
+
+async fn start_daemon() -> Result<(), String> {
+    if hyprsunset_running().await {
+        return Ok(());
+    }
+    if !command_exists("hyprsunset") {
+        return Err("hyprsunset is not installed".into());
+    }
+    std::process::Command::new("hyprsunset")
+        .stdin(std::process::Stdio::null())
+        .stdout(std::process::Stdio::null())
+        .stderr(std::process::Stdio::null())
+        .spawn()
+        .map_err(|e| format!("couldn't start hyprsunset: {e}"))?;
+    for _ in 0..15 {
+        tokio::time::sleep(std::time::Duration::from_millis(150)).await;
+        if hyprsunset_running().await {
+            return Ok(());
+        }
+    }
+    Err("hyprsunset started but Hyprland twilight socket never came up".into())
+}
+
+async fn apply_temperature(temp: u32) -> Result<(), String> {
+    start_daemon().await?;
+    let t = clamp_temp(temp).to_string();
+    let output = Command::new("hyprctl")
+        .args(["hyprsunset", "temperature", &t])
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
+    if output.status.success() {
+        Ok(())
+    } else {
+        Err(fail_output(&output, "hyprctl hyprsunset"))
+    }
+}
+
+async fn apply_identity() -> Result<(), String> {
+    if !hyprsunset_running().await {
+        return Ok(());
+    }
+    let output = Command::new("hyprctl")
+        .args(["hyprsunset", "identity"])
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
+    if output.status.success() {
+        Ok(())
+    } else {
+        Err(fail_output(&output, "hyprctl hyprsunset"))
+    }
+}
+
+fn write_autostart() -> Result<(), String> {
+    let path = util::hypr_dir().join(FRAGMENT);
+    std::fs::create_dir_all(util::hypr_dir()).map_err(|e| e.to_string())?;
+    config::atomic_write(&path, "exec-once = hyprsunset\n").map_err(|e| e.to_string())?;
+    util::ensure_hypr_source(FRAGMENT)
+}
+
+fn clear_autostart() -> Result<(), String> {
+    let path = util::hypr_dir().join(FRAGMENT);
+    let _ = std::fs::remove_file(path);
+    util::remove_hypr_source(FRAGMENT)
+}
+
+#[tauri::command]
+pub async fn get_nightlight() -> NightlightStatus {
+    let persist = load_persist();
+    let installed = command_exists("hyprsunset");
+    let running = if installed {
+        hyprsunset_running().await
+    } else {
+        false
+    };
+    NightlightStatus {
+        installed,
+        running,
+        enabled: persist.enabled && running,
+        temperature: persist.temperature,
+        error: None,
+    }
+}
+
+#[tauri::command]
+pub async fn set_nightlight(enabled: bool, temperature: u32) -> Result<NightlightStatus, String> {
+    if !command_exists("hyprsunset") {
+        return Ok(NightlightStatus {
+            installed: false,
+            running: false,
+            enabled: false,
+            temperature: clamp_temp(temperature),
+            error: Some("hyprsunset is not installed".into()),
+        });
+    }
+    let mut cfg = NightlightConfig {
+        enabled,
+        temperature: clamp_temp(temperature),
+    };
+    let mut error = None;
+    if enabled {
+        if let Err(e) = apply_temperature(cfg.temperature).await {
+            error = Some(e);
+            cfg.enabled = false;
+        } else if let Err(e) = write_autostart() {
+            error = Some(e);
+        }
+    } else {
+        if let Err(e) = apply_identity().await {
+            error = Some(e);
+        }
+        if let Err(e) = clear_autostart() {
+            error = Some(error.unwrap_or(e));
+        }
+    }
+    save_persist(&cfg)?;
+    Ok(NightlightStatus {
+        installed: true,
+        running: hyprsunset_running().await,
+        enabled: cfg.enabled,
+        temperature: cfg.temperature,
+        error,
+    })
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn temp_clamps() {
+        assert_eq!(clamp_temp(100), MIN_TEMP);
+        assert_eq!(clamp_temp(9000), MAX_TEMP);
+        assert_eq!(clamp_temp(3500), 3500);
+    }
+}

src/src/commands/nvidia.rs

@@ -0,0 +1,260 @@
+//! NVIDIA driver offer. BOS writes a probe file when it sees a discrete
+//! NVIDIA GPU; Settings only shows the card if that file exists and does
+//! not install anything until the user clicks.
+
+use serde::Serialize;
+use std::path::{Path, PathBuf};
+use tauri::AppHandle;
+
+use super::streaming;
+use super::util::{self, command_exists, pacman_installed};
+
+/// Same drop-in bos-nvidia-setup writes. hyprland.lua dofiles it only
+/// when the file exists (Mesa machines have no file).
+/// Hyprland 0.56 (Aquamarine): wiki requires LIBVA + GLX vendor.
+/// NVD_BACKEND is the current VA-API hint. No WLR_* / GBM_BACKEND.
+const NVIDIA_LUA: &str = "\
+-- Written by bos-nvidia-setup. hyprland.lua dofiles this only when it exists.
+-- Hyprland 0.56 (Aquamarine) — no WLR_* variables.
+-- https://wiki.hypr.land/Nvidia/
+hl.env(\"LIBVA_DRIVER_NAME\", \"nvidia\")
+hl.env(\"__GLX_VENDOR_LIBRARY_NAME\", \"nvidia\")
+hl.env(\"NVD_BACKEND\", \"direct\")
+";
+
+const HYPR_INCLUDE: &str = "\
+-- bos-nvidia-setup: optional proprietary env; no-op when the file is absent
+do
+    local nvidia = (os.getenv(\"HOME\") or \"\") .. \"/.config/hypr/nvidia.lua\"
+    local f = io.open(nvidia, \"r\")
+    if f then
+        f:close()
+        pcall(dofile, nvidia)
+    end
+end
+";
+
+const NVIDIA_PACKAGES: &[&str] = &["nvidia", "nvidia-utils"];
+
+#[derive(Serialize, Clone)]
+pub struct NvidiaOffer {
+    gpu: String,
+    reason: String,
+    packages: Vec<String>,
+    installed: bool,
+}
+
+fn offer_paths() -> Vec<PathBuf> {
+    let home = std::env::var("HOME").unwrap_or_else(|_| "/root".into());
+    let state = Path::new(&home).join(".local/state/bos");
+    vec![
+        state.join("nvidia-offer.json"),
+        state.join("nvidia-probe.json"),
+    ]
+}
+
+fn nvidia_dropin_path() -> PathBuf {
+    util::hypr_dir().join("nvidia.lua")
+}
+
+fn nvidia_ready() -> bool {
+    nvidia_dropin_path().is_file() && NVIDIA_PACKAGES.iter().all(|p| pacman_installed(p))
+}
+
+pub fn read_nvidia_offer() -> Option<NvidiaOffer> {
+    for path in offer_paths() {
+        if !path.is_file() {
+            continue;
+        }
+        let Ok(text) = std::fs::read_to_string(&path) else {
+            return Some(generic_offer());
+        };
+        if let Ok(v) = serde_json::from_str::<serde_json::Value>(&text) {
+            if v.get("offer").and_then(|x| x.as_bool()) == Some(false)
+                || v.get("dismissed").and_then(|x| x.as_bool()) == Some(true)
+            {
+                return None;
+            }
+            let gpu = v
+                .get("gpu")
+                .or_else(|| v.get("name"))
+                .or_else(|| v.get("device"))
+                .and_then(|x| x.as_str())
+                .unwrap_or("NVIDIA GPU")
+                .to_string();
+            let reason = v
+                .get("reason")
+                .or_else(|| v.get("message"))
+                .and_then(|x| x.as_str())
+                .unwrap_or("A discrete NVIDIA GPU was detected. The proprietary driver is not installed until you choose it.")
+                .to_string();
+            let packages = v
+                .get("packages")
+                .and_then(|x| x.as_array())
+                .map(|arr| {
+                    arr.iter()
+                        .filter_map(|x| x.as_str().map(str::to_string))
+                        .collect::<Vec<_>>()
+                })
+                .filter(|p| !p.is_empty())
+                .unwrap_or_else(|| default_packages());
+            return Some(NvidiaOffer {
+                gpu,
+                reason,
+                packages,
+                installed: nvidia_ready(),
+            });
+        }
+        return Some(generic_offer());
+    }
+    None
+}
+
+fn default_packages() -> Vec<String> {
+    NVIDIA_PACKAGES.iter().map(|s| (*s).to_string()).collect()
+}
+
+fn generic_offer() -> NvidiaOffer {
+    NvidiaOffer {
+        gpu: "NVIDIA GPU".into(),
+        reason: "BOS found an NVIDIA device. Install the proprietary driver only if you want it — nouveau stays otherwise.".into(),
+        packages: default_packages(),
+        installed: nvidia_ready(),
+    }
+}
+
+#[tauri::command]
+pub fn get_nvidia_offer() -> Option<NvidiaOffer> {
+    read_nvidia_offer()
+}
+
+/// Install nvidia + nvidia-utils and write the Hyprland env drop-in.
+/// Prefers `/usr/local/bin/bos-nvidia-setup` (ISO script) so package
+/// install + env stay one path. Falls back to allowlisted pacman plus
+/// the same drop-in when the script is not on this install yet.
+#[tauri::command]
+pub async fn nvidia_setup(app: AppHandle, session_id: String) -> bool {
+    let home = std::env::var("HOME").unwrap_or_default();
+    if command_exists("bos-nvidia-setup") {
+        let ok = streaming::run_hardcoded(
+            app.clone(),
+            session_id.clone(),
+            "pkexec",
+            &["bos-nvidia-setup", "--home", &home],
+        )
+        .await;
+        if ok {
+            streaming::emit_line(&app, &session_id, "reboot required");
+        }
+        return ok;
+    }
+
+    streaming::emit_line(
+        &app,
+        &session_id,
+        "bos-nvidia-setup not on PATH; installing via pacman and writing the env drop-in",
+    );
+    let packages = default_packages();
+    if !streaming::pacman_install(app.clone(), session_id.clone(), packages).await {
+        return false;
+    }
+    match write_nvidia_dropin() {
+        Ok(()) => {
+            streaming::emit_line(&app, &session_id, "wrote ~/.config/hypr/nvidia.lua");
+            streaming::emit_line(&app, &session_id, "reboot required");
+            true
+        }
+        Err(e) => {
+            streaming::emit_line(&app, &session_id, &format!("Error: {e}"));
+            false
+        }
+    }
+}
+
+fn write_nvidia_dropin() -> Result<(), String> {
+    let dir = util::hypr_dir();
+    std::fs::create_dir_all(&dir).map_err(|e| e.to_string())?;
+    let path = dir.join("nvidia.lua");
+    super::config::atomic_write(&path, NVIDIA_LUA).map_err(|e| e.to_string())?;
+    ensure_hyprland_include()?;
+    Ok(())
+}
+
+fn include_already_present(text: &str) -> bool {
+    text.contains("nvidia.lua")
+}
+
+fn ensure_hyprland_include() -> Result<(), String> {
+    let path = util::hypr_dir().join("hyprland.lua");
+    let existing = std::fs::read_to_string(&path).unwrap_or_default();
+    if include_already_present(&existing) {
+        return Ok(());
+    }
+    if existing.is_empty() {
+        return Ok(());
+    }
+    let mut text = existing;
+    if !text.ends_with('\n') {
+        text.push('\n');
+    }
+    text.push('\n');
+    text.push_str(HYPR_INCLUDE);
+    if !text.ends_with('\n') {
+        text.push('\n');
+    }
+    super::config::atomic_write(&path, &text).map_err(|e| e.to_string())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn missing_file_is_none() {
+        // This machine's real probe path is not something the unit test
+        // should depend on; the helper is covered via parse cases below.
+        let parsed = serde_json::from_str::<serde_json::Value>("{\"offer\":false}").unwrap();
+        assert_eq!(parsed["offer"], false);
+    }
+
+    #[test]
+    fn dismissed_or_offer_false_hides() {
+        // Inlined copies of the hide conditions so a schema change is obvious.
+        let hide = |v: &str| {
+            let v: serde_json::Value = serde_json::from_str(v).unwrap();
+            v.get("offer").and_then(|x| x.as_bool()) == Some(false)
+                || v.get("dismissed").and_then(|x| x.as_bool()) == Some(true)
+        };
+        assert!(hide(r#"{"offer":false}"#));
+        assert!(hide(r#"{"dismissed":true}"#));
+        assert!(!hide(r#"{"gpu":"RTX 4060"}"#));
+    }
+
+    #[test]
+    fn dropin_has_current_wiki_env_and_no_obsolete_vars() {
+        assert!(NVIDIA_LUA.contains("LIBVA_DRIVER_NAME"));
+        assert!(NVIDIA_LUA.contains("__GLX_VENDOR_LIBRARY_NAME"));
+        assert!(NVIDIA_LUA.contains("NVD_BACKEND"));
+        assert!(!NVIDIA_LUA.contains("hl.env(\"WLR_"));
+        assert!(!NVIDIA_LUA.contains("hl.env(\"GBM_BACKEND"));
+        assert!(!NVIDIA_LUA.contains("cuda"));
+    }
+
+    #[test]
+    fn include_snippet_is_conditional() {
+        assert!(HYPR_INCLUDE.contains("nvidia.lua"));
+        assert!(HYPR_INCLUDE.contains("io.open"));
+        assert!(HYPR_INCLUDE.contains("pcall(dofile"));
+    }
+
+    #[test]
+    fn include_detects_existing_snippet() {
+        assert!(include_already_present("pcall(dofile, nvidia.lua)"));
+        assert!(!include_already_present("hl.env(\"XCURSOR_SIZE\", \"24\")"));
+    }
+
+    #[test]
+    fn packages_are_nvidia_and_utils_only() {
+        assert_eq!(NVIDIA_PACKAGES, &["nvidia", "nvidia-utils"]);
+    }
+}

src/src/commands/optional.rs

@@ -0,0 +1,112 @@
+//! Curated optional software. Not an AUR dump — four explicit offers,
+//! each installed through a typed command (bakery or allowlisted pacman).
+
+use serde::Serialize;
+use tokio::process::Command;
+
+use super::packages::get_installed_packages;
+use super::util::{command_exists, fail_output, pacman_installed};
+
+#[derive(Serialize, Clone)]
+pub struct OptionalItem {
+    id: String,
+    title: String,
+    detail: String,
+    installed: bool,
+    via: String,
+}
+
+#[derive(Serialize)]
+pub struct OptionalStatus {
+    items: Vec<OptionalItem>,
+    flathub: bool,
+}
+
+fn bakery_has(name: &str) -> bool {
+    get_installed_packages().iter().any(|p| p.name == name)
+}
+
+fn flathub_enabled() -> bool {
+    if !command_exists("flatpak") {
+        return false;
+    }
+    std::process::Command::new("flatpak")
+        .args(["remotes"])
+        .output()
+        .ok()
+        .map(|o| {
+            String::from_utf8_lossy(&o.stdout)
+                .to_ascii_lowercase()
+                .contains("flathub")
+        })
+        .unwrap_or(false)
+}
+
+#[tauri::command]
+pub fn get_optional_software() -> OptionalStatus {
+    let breadcast = bakery_has("breadcast") || command_exists("breadcast");
+    let flatpak = pacman_installed("flatpak") || command_exists("flatpak");
+    let office = pacman_installed("libreoffice-fresh")
+        && (pacman_installed("papers") || pacman_installed("evince"));
+    let steam = pacman_installed("steam") || command_exists("steam");
+    OptionalStatus {
+        items: vec![
+            OptionalItem {
+                id: "breadcast".into(),
+                title: "breadcast".into(),
+                detail:
+                    "Optional bread-ecosystem app. Installed through bakery — it is not on the ISO."
+                        .into(),
+                installed: breadcast,
+                via: "bakery".into(),
+            },
+            OptionalItem {
+                id: "flatpak".into(),
+                title: "Flatpak + Flathub".into(),
+                detail: "Enables the Flatpak runtime and the Flathub user remote.".into(),
+                installed: flatpak && flathub_enabled(),
+                via: "pacman".into(),
+            },
+            OptionalItem {
+                id: "office".into(),
+                title: "LibreOffice + PDF".into(),
+                detail: "libreoffice-fresh and papers (GNOME document viewer).".into(),
+                installed: office,
+                via: "pacman".into(),
+            },
+            OptionalItem {
+                id: "steam".into(),
+                title: "Steam".into(),
+                detail: "Valve Steam from the multilib repo.".into(),
+                installed: steam,
+                via: "pacman".into(),
+            },
+        ],
+        flathub: flathub_enabled(),
+    }
+}
+
+/// User Flathub remote — no root. Flatpak itself is installed separately
+/// via the allowlisted pacman command when missing.
+#[tauri::command]
+pub async fn enable_flathub() -> Result<(), String> {
+    if !command_exists("flatpak") {
+        return Err("flatpak is not installed".into());
+    }
+    let output = Command::new("flatpak")
+        .args([
+            "remote-add",
+            "--if-not-exists",
+            "--user",
+            "flathub",
+            "https://dl.flathub.org/repo/flathub.flatpakrepo",
+        ])
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
+    if output.status.success() {
+        Ok(())
+    } else {
+        Err(fail_output(&output, "flatpak remote-add"))
+    }
+}

src/src/commands/packages.rs

@@ -3,7 +3,7 @@ use std::collections::HashMap;
 
 #[derive(Serialize, Clone)]
 pub struct InstalledPackage {
-    name: String,
+    pub name: String,
     version: String,
 }
 
@@ -23,14 +23,19 @@ pub fn get_installed_packages() -> Vec<InstalledPackage> {
     let Some(packages) = parsed.get_mut("packages").map(std::mem::take) else {
         return Vec::new();
     };
-    let Ok(packages) = serde_json::from_value::<HashMap<String, serde_json::Value>>(packages) else {
+    let Ok(packages) = serde_json::from_value::<HashMap<String, serde_json::Value>>(packages)
+    else {
         return Vec::new();
     };
 
     let mut list: Vec<InstalledPackage> = packages
         .into_iter()
         .map(|(name, val)| {
-            let version = val.get("version").and_then(|v| v.as_str()).unwrap_or("unknown").to_string();
+            let version = val
+                .get("version")
+                .and_then(|v| v.as_str())
+                .unwrap_or("unknown")
+                .to_string();
             InstalledPackage { name, version }
         })
         .collect();

src/src/commands/power.rs

@@ -7,13 +7,22 @@
 use serde::Serialize;
 use tokio::process::Command;
 
+use super::util;
+
 async fn upower_device(kind: &str) -> Option<String> {
     let out = Command::new("upower").arg("-e").output().await.ok()?;
-    String::from_utf8_lossy(&out.stdout).lines().find(|l| l.to_lowercase().contains(kind)).map(str::to_string)
+    String::from_utf8_lossy(&out.stdout)
+        .lines()
+        .find(|l| l.to_lowercase().contains(kind))
+        .map(str::to_string)
 }
 
 async fn upower_field(device: &str, field: &str) -> Option<String> {
-    let out = Command::new("upower").args(["-i", device]).output().await.ok()?;
+    let out = Command::new("upower")
+        .args(["-i", device])
+        .output()
+        .await
+        .ok()?;
     let text = String::from_utf8_lossy(&out.stdout);
     text.lines()
         .find(|l| l.trim_start().starts_with(field))
@@ -39,12 +48,18 @@ async fn battery_summary() -> Vec<(String, String)> {
     if let Some(t) = t {
         rows.push(("Time remaining".to_string(), t));
     }
-    let full: Option<f64> = upower_field(&bat, "energy-full").await.and_then(|v| v.split_whitespace().next()?.parse().ok());
-    let design: Option<f64> =
-        upower_field(&bat, "energy-full-design").await.and_then(|v| v.split_whitespace().next()?.parse().ok());
+    let full: Option<f64> = upower_field(&bat, "energy-full")
+        .await
+        .and_then(|v| v.split_whitespace().next()?.parse().ok());
+    let design: Option<f64> = upower_field(&bat, "energy-full-design")
+        .await
+        .and_then(|v| v.split_whitespace().next()?.parse().ok());
     if let (Some(full), Some(design)) = (full, design) {
         if design > 0.0 {
-            rows.push(("Battery health".to_string(), format!("{:.0}% of design capacity", full / design * 100.0)));
+            rows.push((
+                "Battery health".to_string(),
+                format!("{:.0}% of design capacity", full / design * 100.0),
+            ));
         }
     }
     rows
@@ -64,12 +79,19 @@ async fn power_source() -> String {
 async fn tlp_profile() -> Option<String> {
     let out = Command::new("tlp-stat").arg("-s").output().await.ok()?;
     let text = String::from_utf8_lossy(&out.stdout);
-    text.lines().find(|l| l.trim_start().starts_with("TLP profile")).and_then(|l| l.split('=').nth(1)).map(|v| v.trim().to_string())
+    text.lines()
+        .find(|l| l.trim_start().starts_with("TLP profile"))
+        .and_then(|l| l.split('=').nth(1))
+        .map(|v| v.trim().to_string())
 }
 
 async fn brightness_device() -> Option<String> {
     let out = Command::new("brightnessctl").output().await.ok()?;
-    String::from_utf8_lossy(&out.stdout).lines().find(|l| l.starts_with("Device")).and_then(|l| l.split('\'').nth(1)).map(str::to_string)
+    String::from_utf8_lossy(&out.stdout)
+        .lines()
+        .find(|l| l.starts_with("Device"))
+        .and_then(|l| l.split('\'').nth(1))
+        .map(str::to_string)
 }
 
 async fn brightness_pct() -> Option<u32> {
@@ -98,7 +120,10 @@ fn charge_threshold_paths() -> Option<(std::path::PathBuf, std::path::PathBuf)>
 }
 
 fn read_threshold(path: &std::path::Path) -> i64 {
-    std::fs::read_to_string(path).ok().and_then(|s| s.trim().parse().ok()).unwrap_or(100)
+    std::fs::read_to_string(path)
+        .ok()
+        .and_then(|s| s.trim().parse().ok())
+        .unwrap_or(100)
 }
 
 #[derive(Serialize)]
@@ -130,16 +155,57 @@ pub async fn set_brightness(percent: i64) -> Result<(), String> {
         return Err("No controllable backlight found".into());
     };
     let pct = format!("{percent}%");
-    Command::new("brightnessctl").args(["--device", &device, "set", &pct]).status().await.map_err(|e| e.to_string())?;
+    Command::new("brightnessctl")
+        .args(["--device", &device, "set", &pct])
+        .status()
+        .await
+        .map_err(|e| e.to_string())?;
     Ok(())
 }
 
+fn charge_threshold_write(which: &str, percent: i64) -> Result<(String, i64), String> {
+    if which != "start" && which != "end" {
+        return Err("threshold must be start or end".into());
+    }
+    Ok((which.to_string(), percent.clamp(0, 100)))
+}
+
 #[tauri::command]
 pub async fn set_charge_threshold(which: String, percent: i64) -> Result<(), String> {
+    let (which, percent) = charge_threshold_write(&which, percent)?;
     let Some((start, end)) = charge_threshold_paths() else {
         return Err("No charge threshold support on this hardware".into());
     };
     let path = if which == "start" { start } else { end };
-    Command::new("pkexec").args(["tee", &path.display().to_string()]).arg(percent.to_string()).output().await.map_err(|e| e.to_string())?;
+    // GNU tee writes stdin to its path operands — the percent must be piped,
+    // not passed as a second path argument.
+    let input = format!("{percent}\n");
+    if util::run_with_stdin(&["pkexec", "tee", &path.display().to_string()], &input).await {
         Ok(())
+    } else {
+        Err("Failed to set charge threshold".into())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn charge_threshold_clamps_and_restricts_which() {
+        assert_eq!(
+            charge_threshold_write("start", 80).unwrap(),
+            ("start".into(), 80)
+        );
+        assert_eq!(
+            charge_threshold_write("end", 150).unwrap(),
+            ("end".into(), 100)
+        );
+        assert_eq!(
+            charge_threshold_write("start", -5).unwrap(),
+            ("start".into(), 0)
+        );
+        assert!(charge_threshold_write("both", 50).is_err());
+        assert!(charge_threshold_write("-start", 50).is_err());
+    }
 }

src/src/commands/printing.rs

@@ -0,0 +1,204 @@
+//! CUPS printers via lpstat / lpadmin. Adding a printer through the full
+//! device wizard is `system-config-printer`; a simple IPP Everywhere queue
+//! can be created here when the user has a URI.
+
+use serde::Serialize;
+use tokio::process::Command;
+
+use super::util::{fail_output, valid_printer_name};
+
+#[derive(Serialize, Clone)]
+pub struct Printer {
+    name: String,
+    status: String,
+    enabled: bool,
+    is_default: bool,
+}
+
+#[derive(Serialize)]
+pub struct PrintingStatus {
+    printers: Vec<Printer>,
+    default: Option<String>,
+    cups_ok: bool,
+    error: Option<String>,
+}
+
+#[tauri::command]
+pub async fn get_printers() -> PrintingStatus {
+    let output = match Command::new("lpstat").args(["-p", "-d"]).output().await {
+        Ok(o) => o,
+        Err(e) => {
+            return PrintingStatus {
+                printers: Vec::new(),
+                default: None,
+                cups_ok: false,
+                error: Some(format!("couldn't run lpstat: {e}")),
+            };
+        }
+    };
+    if !output.status.success() {
+        return PrintingStatus {
+            printers: Vec::new(),
+            default: None,
+            cups_ok: false,
+            error: Some(fail_output(&output, "lpstat")),
+        };
+    }
+    let text = String::from_utf8_lossy(&output.stdout);
+    parse_lpstat(&text)
+}
+
+fn parse_lpstat(text: &str) -> PrintingStatus {
+    let mut printers = Vec::new();
+    let mut default = None;
+    for line in text.lines() {
+        let line = line.trim();
+        if let Some(rest) = line.strip_prefix("printer ") {
+            let mut parts = rest.splitn(2, ' ');
+            let name = parts.next().unwrap_or("").to_string();
+            let rest = parts.next().unwrap_or("");
+            if name.is_empty() {
+                continue;
+            }
+            let enabled = !rest.contains("disabled");
+            let status = rest
+                .strip_prefix("is ")
+                .unwrap_or(rest)
+                .split(".  ")
+                .next()
+                .unwrap_or(rest)
+                .trim()
+                .to_string();
+            printers.push(Printer {
+                name,
+                status,
+                enabled,
+                is_default: false,
+            });
+        } else if let Some(name) = line.strip_prefix("system default destination: ") {
+            default = Some(name.trim().to_string());
+        } else if line == "no system default destination" {
+            default = None;
+        }
+    }
+    if let Some(def) = default.as_deref() {
+        for p in &mut printers {
+            p.is_default = p.name == def;
+        }
+    }
+    PrintingStatus {
+        printers,
+        default,
+        cups_ok: true,
+        error: None,
+    }
+}
+
+#[tauri::command]
+pub async fn set_default_printer(name: String) -> Result<(), String> {
+    if !valid_printer_name(&name) {
+        return Err(format!("invalid printer name '{name}'"));
+    }
+    let output = Command::new("lpadmin")
+        .args(["-d", &name])
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
+    if output.status.success() {
+        return Ok(());
+    }
+    let output = Command::new("pkexec")
+        .args(["lpadmin", "-d", &name])
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
+    if output.status.success() {
+        Ok(())
+    } else {
+        Err(fail_output(&output, "lpadmin"))
+    }
+}
+
+#[tauri::command]
+pub async fn add_ipp_printer(name: String, uri: String) -> Result<(), String> {
+    if !valid_printer_name(&name) {
+        return Err(format!("invalid printer name '{name}'"));
+    }
+    if !valid_printer_uri(&uri) {
+        return Err("URI must be ipp://, ipps://, socket://, usb://, or dnssd://".into());
+    }
+    let args_owned = [
+        "-p".into(),
+        name.clone(),
+        "-E".into(),
+        "-v".into(),
+        uri,
+        "-m".into(),
+        "everywhere".into(),
+    ];
+    let output = Command::new("lpadmin")
+        .args(&args_owned)
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
+    if output.status.success() {
+        return Ok(());
+    }
+    let mut pk = vec!["lpadmin".to_string()];
+    pk.extend(args_owned);
+    let output = Command::new("pkexec")
+        .args(&pk)
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
+    if output.status.success() {
+        Ok(())
+    } else {
+        Err(fail_output(&output, "lpadmin"))
+    }
+}
+
+fn valid_printer_uri(uri: &str) -> bool {
+    let u = uri.trim();
+    !u.is_empty()
+        && u.len() <= 512
+        && !u.contains(char::is_whitespace)
+        && (u.starts_with("ipp://")
+            || u.starts_with("ipps://")
+            || u.starts_with("socket://")
+            || u.starts_with("usb://")
+            || u.starts_with("dnssd://"))
+}
+
+#[tauri::command]
+pub fn open_printer_settings() {
+    let _ = std::process::Command::new("system-config-printer").spawn();
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn lpstat_parses_idle_and_default() {
+        let text = "\
+printer Canon-TS6360a is idle.  enabled since Mon 10 Aug 2026
+printer Hall is disabled since yesterday
+system default destination: Canon-TS6360a
+";
+        let st = parse_lpstat(text);
+        assert_eq!(st.printers.len(), 2);
+        assert!(st.printers[0].is_default);
+        assert!(st.printers[0].enabled);
+        assert!(!st.printers[1].enabled);
+        assert_eq!(st.default.as_deref(), Some("Canon-TS6360a"));
+    }
+
+    #[test]
+    fn uri_schemes() {
+        assert!(valid_printer_uri("ipp://192.168.1.5/ipp/print"));
+        assert!(valid_printer_uri("ipps://printer.local/ipp"));
+        assert!(!valid_printer_uri("http://evil"));
+        assert!(!valid_printer_uri("ipp://x y"));
+    }
+}

src/src/commands/service.rs

@@ -21,6 +21,19 @@ pub enum ServiceAction {
     Restart,
 }
 
+/// Units the frontend already hardcodes in ServiceControl call sites.
+const ALLOWED_UNITS: &[&str] = &[
+    "breadd.service",
+    "breadclipd.service",
+    "breadcrumbs.service",
+    "breadmill.service",
+    "breadbox-sync.service",
+];
+
+fn allowed_unit(unit: &str) -> bool {
+    ALLOWED_UNITS.contains(&unit)
+}
+
 async fn systemctl_active(unit: &str) -> bool {
     Command::new("systemctl")
         .args(["--user", "is-active", "--quiet", unit])
@@ -40,15 +53,21 @@ async fn systemctl_enabled(unit: &str) -> bool {
 }
 
 #[tauri::command]
-pub async fn get_service_status(unit: String) -> ServiceStatus {
-    ServiceStatus {
+pub async fn get_service_status(unit: String) -> Result<ServiceStatus, String> {
+    if !allowed_unit(&unit) {
+        return Err("unknown service".into());
+    }
+    Ok(ServiceStatus {
         active: systemctl_active(&unit).await,
         enabled: systemctl_enabled(&unit).await,
-    }
+    })
 }
 
 #[tauri::command]
 pub async fn service_action(unit: String, action: ServiceAction) -> Result<(), String> {
+    if !allowed_unit(&unit) {
+        return Err("unknown service".into());
+    }
     let verb = match action {
         ServiceAction::Start => "start",
         ServiceAction::Stop => "stop",
@@ -70,8 +89,31 @@ pub async fn service_action(unit: String, action: ServiceAction) -> Result<(), S
 /// panel, no reason to pull an open-ended `journalctl -f` tail into the
 /// webview.
 #[tauri::command]
-pub fn open_logs(unit: String) {
-    let _ = std::process::Command::new("kitty")
-        .args(["-e", "journalctl", "--user", "-u", &unit, "-f"])
-        .spawn();
+pub fn open_logs(unit: String) -> Result<(), String> {
+    if !allowed_unit(&unit) {
+        return Err("unknown service".into());
+    }
+    std::process::Command::new("kitty")
+        .args(["-e", "journalctl", "--user", "-u", &unit, "-f"])
+        .spawn()
+        .map_err(|e| e.to_string())?;
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn units_match_frontend_hardcoded_list() {
+        assert!(allowed_unit("breadd.service"));
+        assert!(allowed_unit("breadclipd.service"));
+        assert!(allowed_unit("breadcrumbs.service"));
+        assert!(allowed_unit("breadmill.service"));
+        assert!(allowed_unit("breadbox-sync.service"));
+        assert!(!allowed_unit("sshd.service"));
+        assert!(!allowed_unit("breadd.service;reboot"));
+        assert!(!allowed_unit("../sshd.service"));
+        assert!(!allowed_unit("-u sshd"));
+    }
 }

src/src/commands/streaming.rs

@@ -15,20 +15,49 @@ use tokio::io::{AsyncBufReadExt, BufReader};
 use tokio::process::Command;
 
 #[derive(Clone, Serialize)]
-struct CmdOutputEvent {
+pub(crate) struct CmdOutputEvent {
     session_id: String,
     line: String,
 }
 
+pub(crate) fn emit_line(app: &AppHandle, session_id: &str, line: &str) {
+    let _ = app.emit(
+        "cmd-output",
+        CmdOutputEvent {
+            session_id: session_id.to_string(),
+            line: line.to_string(),
+        },
+    );
+}
+
 /// Runs a hardcoded `program args...`, emitting one `cmd-output` event per
 /// line of stdout/stderr (tagged with `session_id` so the frontend can route
 /// concurrent streams), and resolves to whether it exited successfully.
-async fn run_hardcoded(app: AppHandle, session_id: String, program: &str, args: &[&str]) -> bool {
-    let child = Command::new(program)
-        .args(args)
+pub(crate) async fn run_hardcoded(
+    app: AppHandle,
+    session_id: String,
+    program: &str,
+    args: &[&str],
+) -> bool {
+    run_hardcoded_env(app, session_id, program, args, &[]).await
+}
+
+pub(crate) async fn run_hardcoded_env(
+    app: AppHandle,
+    session_id: String,
+    program: &str,
+    args: &[&str],
+    envs: &[(&str, String)],
+) -> bool {
+    let mut cmd = Command::new(program);
+    cmd.args(args)
         .stdout(Stdio::piped())
         .stderr(Stdio::piped())
-        .spawn();
+        .kill_on_drop(true);
+    for (k, v) in envs {
+        cmd.env(k, v);
+    }
+    let child = cmd.spawn();
     let mut child = match child {
         Ok(c) => c,
         Err(e) => {
@@ -135,6 +164,35 @@ pub async fn fwupd_update(app: AppHandle, session_id: String) -> bool {
     run_hardcoded(app, session_id, "fwupdmgr", &["update", "-y"]).await
 }
 
+#[tauri::command]
+pub async fn bakery_install(app: AppHandle, session_id: String, name: String) -> bool {
+    if let Err(e) = super::util::allowed_bakery_install(&name) {
+        emit_line(&app, &session_id, &format!("Error: {e}"));
+        return false;
+    }
+    run_hardcoded(app, session_id, "bakery", &["-y", "install", &name]).await
+}
+
+#[tauri::command]
+pub async fn pacman_install(app: AppHandle, session_id: String, packages: Vec<String>) -> bool {
+    let names = match super::util::allowed_pacman_packages(&packages) {
+        Ok(n) => n,
+        Err(e) => {
+            emit_line(&app, &session_id, &format!("Error: {e}"));
+            return false;
+        }
+    };
+    let mut args: Vec<String> = vec![
+        "pacman".into(),
+        "-S".into(),
+        "--noconfirm".into(),
+        "--".into(),
+    ];
+    args.extend(names);
+    let refs: Vec<&str> = args.iter().map(String::as_str).collect();
+    run_hardcoded(app, session_id, "pkexec", &refs).await
+}
+
 #[cfg(test)]
 mod tests {
     use super::valid_bakery_pkg;

src/src/commands/theme.rs

@@ -11,17 +11,26 @@ use tauri::{AppHandle, Emitter, Manager};
 
 /// Initial theme fetch — called once by the frontend at startup.
 #[tauri::command]
-pub fn get_theme_css() -> String {
-    render_theme_css()
+pub fn get_theme_css(window: tauri::WebviewWindow) -> String {
+    render_theme_css(&palette_for_window(&window))
 }
 
-fn render_theme_css() -> String {
-    let palette = bread_theme::load_palette();
+fn palette_for_window(window: &tauri::WebviewWindow) -> bread_theme::Palette {
+    window
+        .current_monitor()
+        .ok()
+        .flatten()
+        .and_then(|m| m.name().map(|s| s.to_string()))
+        .map(|name| bread_theme::load_palette_for(&name))
+        .unwrap_or_else(bread_theme::load_palette)
+}
+
+fn render_theme_css(palette: &bread_theme::Palette) -> String {
     // bread-theme v0.7.1 exposes Palette + ink_on + tokens, but not the
     // later css_custom_properties / css_tokens helpers (those landed after
     // the tag). Emit the same :root custom-property names the Svelte app
     // already uses so a tag pin doesn't require a web-side rename.
-    format!("{}\n{}", css_custom_properties(&palette), css_tokens())
+    format!("{}\n{}", css_custom_properties(palette), css_tokens())
 }
 
 fn css_custom_properties(p: &bread_theme::Palette) -> String {
@@ -103,7 +112,11 @@ pub fn watch_and_emit(app: &AppHandle) {
                 EventKind::Create(_) | EventKind::Modify(_) | EventKind::Remove(_)
             ) && event.paths.iter().any(|p| p == &target_for_watcher);
             if touches_target {
-                let _ = app_for_watcher.emit("theme-changed", render_theme_css());
+                let css = app_for_watcher
+                    .get_webview_window("main")
+                    .map(|w| render_theme_css(&palette_for_window(&w)))
+                    .unwrap_or_else(|| render_theme_css(&bread_theme::load_palette()));
+                let _ = app_for_watcher.emit("theme-changed", css);
             }
         },
         notify::Config::default(),

src/src/commands/updates.rs

@@ -0,0 +1,184 @@
+//! Aggregated Updates page: pacman -Qu, bakery dry-run, fwupd devices.
+//! Rollback is Snapshots / grub-btrfs — not `snapper rollback`.
+
+use serde::Serialize;
+use tokio::process::Command;
+
+use super::firmware::{get_updatable_firmware, FwDevice};
+use super::nvidia::{read_nvidia_offer, NvidiaOffer};
+use super::util::strip_ansi;
+
+#[derive(Serialize, Clone)]
+pub struct PendingUpdate {
+    name: String,
+    current: String,
+    latest: String,
+}
+
+#[derive(Serialize)]
+pub struct UpdatesStatus {
+    pacman: Vec<PendingUpdate>,
+    pacman_error: Option<String>,
+    bakery: Vec<PendingUpdate>,
+    bakery_error: Option<String>,
+    firmware: Vec<FwDevice>,
+    nvidia: Option<NvidiaOffer>,
+}
+
+#[tauri::command]
+pub async fn get_updates_status() -> UpdatesStatus {
+    let (pacman, bakery, firmware) = tokio::join!(
+        list_pacman_upgrades(),
+        list_bakery_outdated(),
+        get_updatable_firmware()
+    );
+    let (pacman, pacman_error) = match pacman {
+        Ok(v) => (v, None),
+        Err(e) => (Vec::new(), Some(e)),
+    };
+    let (bakery, bakery_error) = match bakery {
+        Ok(v) => (v, None),
+        Err(e) => (Vec::new(), Some(e)),
+    };
+    UpdatesStatus {
+        pacman,
+        pacman_error,
+        bakery,
+        bakery_error,
+        firmware,
+        nvidia: read_nvidia_offer(),
+    }
+}
+
+async fn list_pacman_upgrades() -> Result<Vec<PendingUpdate>, String> {
+    let output = Command::new("pacman")
+        .args(["-Qu"])
+        .output()
+        .await
+        .map_err(|e| format!("couldn't run pacman: {e}"))?;
+    // pacman -Qu exits 1 when there is nothing to upgrade.
+    let text = String::from_utf8_lossy(&output.stdout);
+    Ok(parse_pacman_qu(&text))
+}
+
+fn parse_pacman_qu(text: &str) -> Vec<PendingUpdate> {
+    text.lines()
+        .filter_map(|line| {
+            let line = line.trim();
+            if line.is_empty() {
+                return None;
+            }
+            // "name old -> new" — extra fields after new are ignored.
+            let mut parts = line.split_whitespace();
+            let name = parts.next()?.to_string();
+            let current = parts.next()?.to_string();
+            let arrow = parts.next()?;
+            if arrow != "->" {
+                return None;
+            }
+            let latest = parts.next()?.to_string();
+            Some(PendingUpdate {
+                name,
+                current,
+                latest,
+            })
+        })
+        .collect()
+}
+
+async fn list_bakery_outdated() -> Result<Vec<PendingUpdate>, String> {
+    let output = Command::new("bakery")
+        .args(["--dry-run", "update", "--all"])
+        .output()
+        .await
+        .map_err(|e| format!("couldn't run bakery: {e}"))?;
+    let text = strip_ansi(&String::from_utf8_lossy(&output.stdout));
+    let err = strip_ansi(&String::from_utf8_lossy(&output.stderr));
+    let combined = format!("{text}\n{err}");
+    Ok(parse_bakery_outdated(&combined))
+}
+
+/// bakery has no `outdated` subcommand. `--dry-run update --all` is the
+/// CLI's own preview of what a track-aware update would change.
+fn parse_bakery_outdated(text: &str) -> Vec<PendingUpdate> {
+    let mut out = Vec::new();
+    for raw in text.lines() {
+        let line = raw.trim();
+        if let Some(pkg) = parse_would_update(line).or_else(|| parse_updating_arrow(line)) {
+            if !out.iter().any(|p: &PendingUpdate| p.name == pkg.name) {
+                out.push(pkg);
+            }
+        }
+    }
+    out
+}
+
+fn parse_would_update(line: &str) -> Option<PendingUpdate> {
+    // "dry-run: would update bakery to 0.7.3-dev.…"
+    // "Would update  bakery  0.7.3-dev.…"
+    let lower = line.to_ascii_lowercase();
+    let i = lower.find("would update")?;
+    let rest = line[i + "would update".len()..].trim();
+    let rest = rest.strip_prefix(':').unwrap_or(rest).trim();
+    let rest = rest.strip_prefix("to ").unwrap_or(rest);
+    let mut parts = rest.split_whitespace();
+    let name = parts.next()?.to_string();
+    let mut latest = parts.next().unwrap_or("").to_string();
+    if latest.eq_ignore_ascii_case("to") {
+        latest = parts.next().unwrap_or("").to_string();
+    }
+    if name.is_empty() {
+        return None;
+    }
+    Some(PendingUpdate {
+        name,
+        current: String::new(),
+        latest,
+    })
+}
+
+fn parse_updating_arrow(line: &str) -> Option<PendingUpdate> {
+    // "updating bakery 0.7.2 → 0.7.3"
+    let line = line.strip_prefix("updating ")?;
+    let (name, rest) = line.split_once(' ')?;
+    let (current, latest) = rest.split_once('→')?;
+    Some(PendingUpdate {
+        name: name.trim().to_string(),
+        current: current.trim().to_string(),
+        latest: latest.trim().to_string(),
+    })
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn pacman_qu_parses_arrow_lines() {
+        let text =
+            "linux 6.15.1-1 -> 6.15.2-1\nextra-note\nbos-settings 0.8.0-1 -> 0.8.1-1 [ignored]\n";
+        let v = parse_pacman_qu(text);
+        assert_eq!(v.len(), 2);
+        assert_eq!(v[0].name, "linux");
+        assert_eq!(v[0].current, "6.15.1-1");
+        assert_eq!(v[0].latest, "6.15.2-1");
+        assert_eq!(v[1].name, "bos-settings");
+    }
+
+    #[test]
+    fn bakery_dry_run_parses_would_update_and_arrow() {
+        let text = "\
+  · breadbar is already at 0.3.2
+updating bakery 0.7.2-dev.1 → 0.7.3-dev.2
+  dry-run: would update bakery to 0.7.3-dev.2
+Would update  breadcast  1.2.3
+1 updated, 14 already up to date
+";
+        let v = parse_bakery_outdated(text);
+        assert_eq!(v.len(), 2);
+        assert_eq!(v[0].name, "bakery");
+        assert_eq!(v[0].latest, "0.7.3-dev.2");
+        assert_eq!(v[1].name, "breadcast");
+        assert_eq!(v[1].latest, "1.2.3");
+    }
+}

src/src/commands/users.rs

@@ -3,9 +3,10 @@
 //! `pkexec`.
 
 use serde::Serialize;
-use tokio::io::AsyncWriteExt;
 use tokio::process::Command;
 
+use super::util;
+
 #[derive(Serialize, Clone)]
 pub struct Account {
     username: String,
@@ -26,10 +27,16 @@ fn list_accounts() -> Vec<Account> {
             let shell = f[6];
             // Real human accounts: normal UID range, a real login shell
             // (excludes system/service accounts like greeter, avahi, etc).
-            if !(1000..60000).contains(&uid) || shell.ends_with("nologin") || shell.ends_with("/false") {
+            if !(1000..60000).contains(&uid)
+                || shell.ends_with("nologin")
+                || shell.ends_with("/false")
+            {
                 return None;
             }
-            Some(Account { username: f[0].to_string(), full_name: f[4].split(',').next().unwrap_or("").to_string() })
+            Some(Account {
+                username: f[0].to_string(),
+                full_name: f[4].split(',').next().unwrap_or("").to_string(),
+            })
         })
         .collect()
 }
@@ -42,29 +49,69 @@ pub struct UsersInfo {
 
 #[tauri::command]
 pub fn get_users_info() -> UsersInfo {
-    UsersInfo { accounts: list_accounts(), current_user: std::env::var("USER").unwrap_or_default() }
+    UsersInfo {
+        accounts: list_accounts(),
+        current_user: std::env::var("USER").unwrap_or_default(),
+    }
 }
 
-/// Runs a root command that needs a line of input on stdin (chpasswd's own
-/// "user:password" format). `pkexec` inherits the spawning process's stdin
-/// only when explicitly piped, so this pipes it through.
-async fn run_with_stdin(args: &[&str], input: String) -> bool {
-    let Ok(mut child) = Command::new(args[0]).args(&args[1..]).stdin(std::process::Stdio::piped()).stdout(std::process::Stdio::null()).stderr(std::process::Stdio::null()).spawn()
-    else {
-        return false;
-    };
-    if let Some(mut stdin) = child.stdin.take() {
-        if stdin.write_all(input.as_bytes()).await.is_err() {
+/// shadow-utils `USER_NAME_MAX` is 32; keep chpasswd/useradd operands inside it.
+const USERNAME_MAX: usize = 32;
+
+/// `[a-z_][a-z0-9_-]*`, length-capped, no leading `-`. Also rejects `:`,
+/// newlines, and other chpasswd field/line separators.
+fn valid_username(name: &str) -> bool {
+    let bytes = name.as_bytes();
+    if bytes.is_empty() || bytes.len() > USERNAME_MAX {
         return false;
     }
+    let first = bytes[0];
+    if first != b'_' && !first.is_ascii_lowercase() {
+        return false;
     }
-    child.wait().await.map(|s| s.success()).unwrap_or(false)
+    bytes[1..]
+        .iter()
+        .all(|b| b.is_ascii_lowercase() || b.is_ascii_digit() || matches!(*b, b'_' | b'-'))
+}
+
+/// chpasswd reads `user:password` lines — a `:`, `\n`, or `\r` in either
+/// field injects extra passwd entries or shifts columns.
+fn valid_chpasswd_password(password: &str) -> bool {
+    !password.is_empty()
+        && password.len() <= 512
+        && !password.contains('\n')
+        && !password.contains('\r')
+        && !password.contains(':')
+        && !password.contains('\0')
+}
+
+fn chpasswd_input(username: &str, password: &str) -> Result<String, String> {
+    if !valid_username(username) {
+        return Err("invalid username".into());
+    }
+    if !valid_chpasswd_password(password) {
+        return Err("invalid password".into());
+    }
+    Ok(format!("{username}:{password}\n"))
+}
+
+fn may_delete_user(username: &str, current: &str) -> Result<(), String> {
+    if !valid_username(username) {
+        return Err("invalid username".into());
+    }
+    if username == "root" {
+        return Err("refusing to remove root".into());
+    }
+    if !current.is_empty() && username == current {
+        return Err("refusing to remove the current user".into());
+    }
+    Ok(())
 }
 
 #[tauri::command]
 pub async fn change_password(username: String, password: String) -> Result<(), String> {
-    let input = format!("{username}:{password}\n");
-    if run_with_stdin(&["pkexec", "chpasswd"], input).await {
+    let input = chpasswd_input(&username, &password)?;
+    if util::run_with_stdin(&["pkexec", "chpasswd"], &input).await {
         Ok(())
     } else {
         Err("Failed to change password".into())
@@ -73,7 +120,13 @@ pub async fn change_password(username: String, password: String) -> Result<(), S
 
 #[tauri::command]
 pub async fn remove_user(username: String) -> Result<(), String> {
-    let output = Command::new("pkexec").args(["userdel", "-r", &username]).output().await.map_err(|e| e.to_string())?;
+    let current = std::env::var("USER").unwrap_or_default();
+    may_delete_user(&username, &current)?;
+    let output = Command::new("pkexec")
+        .args(["userdel", "-r", &username])
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
     if output.status.success() {
         Ok(())
     } else {
@@ -83,22 +136,68 @@ pub async fn remove_user(username: String) -> Result<(), String> {
 
 #[tauri::command]
 pub async fn add_user(username: String, full_name: String, password: String) -> Result<(), String> {
-    let username = username.trim().to_string();
-    let mut useradd_args = vec!["pkexec".to_string(), "useradd".to_string(), "-m".to_string(), "-s".to_string(), "/bin/bash".to_string()];
+    let username = username.trim();
+    let input = chpasswd_input(username, &password)?;
+    let mut useradd_args = vec![
+        "pkexec".to_string(),
+        "useradd".to_string(),
+        "-m".to_string(),
+        "-s".to_string(),
+        "/bin/bash".to_string(),
+    ];
     if !full_name.trim().is_empty() {
         useradd_args.push("-c".to_string());
         useradd_args.push(full_name.trim().to_string());
     }
-    useradd_args.push(username.clone());
+    useradd_args.push(username.to_string());
     let args_ref: Vec<&str> = useradd_args.iter().map(String::as_str).collect();
-    let output = Command::new(args_ref[0]).args(&args_ref[1..]).output().await.map_err(|e| e.to_string())?;
+    let output = Command::new(args_ref[0])
+        .args(&args_ref[1..])
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
     if !output.status.success() {
         return Err(String::from_utf8_lossy(&output.stderr).trim().to_string());
     }
-    let input = format!("{username}:{password}\n");
-    if run_with_stdin(&["pkexec", "chpasswd"], input).await {
+    if util::run_with_stdin(&["pkexec", "chpasswd"], &input).await {
         Ok(())
     } else {
         Err("User created, but setting the password failed.".into())
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn chpasswd_rejects_newline_injection() {
+        assert!(chpasswd_input("alice", "pw\nroot:evil").is_err());
+        assert!(chpasswd_input("alice\nroot", "pw").is_err());
+        assert!(chpasswd_input("alice\rroot", "pw").is_err());
+        assert!(chpasswd_input("alice", "pw\rroot:x").is_err());
+        assert!(chpasswd_input("al:ice", "pw").is_err());
+        assert!(chpasswd_input("alice", "p:w").is_err());
+        assert_eq!(chpasswd_input("alice", "secret").unwrap(), "alice:secret\n");
+    }
+
+    #[test]
+    fn username_grammar() {
+        assert!(valid_username("alice"));
+        assert!(valid_username("_svc"));
+        assert!(valid_username("a1-b_c"));
+        assert!(!valid_username(""));
+        assert!(!valid_username("-alice"));
+        assert!(!valid_username("Alice"));
+        assert!(!valid_username("root user"));
+        assert!(!valid_username(&"a".repeat(USERNAME_MAX + 1)));
+    }
+
+    #[test]
+    fn remove_user_refuses_root_and_self() {
+        assert!(may_delete_user("root", "alice").is_err());
+        assert!(may_delete_user("alice", "alice").is_err());
+        assert!(may_delete_user("root\n", "alice").is_err());
+        assert!(may_delete_user("bob", "alice").is_ok());
+    }
+}

src/src/commands/util.rs

@@ -0,0 +1,282 @@
+//! Shared helpers for the OS-panel commands: PATH lookups, tight name
+//! checks, 0600 writes, and the Hyprland `source =` fragment convention.
+
+use std::path::{Path, PathBuf};
+
+use super::config;
+
+/// Pacman packages these panels may install. A generic `pacman -S` runner
+/// is an arbitrary-package primitive; every name must be on this list.
+pub const PACMAN_ALLOWLIST: &[&str] = &[
+    "hyprsunset",
+    "fcitx5",
+    "fcitx5-configtool",
+    "fcitx5-gtk",
+    "fcitx5-qt",
+    "fcitx5-im",
+    "fcitx5-chinese-addons",
+    "fcitx5-table-extra",
+    "orca",
+    "kmag",
+    "restic",
+    "flatpak",
+    "libreoffice-fresh",
+    "papers",
+    "evince",
+    "steam",
+    "nvidia",
+    "nvidia-utils",
+];
+
+/// Bakery packages these panels may `bakery install`. breadcast is optional
+/// software and is not on the ISO; do not add breadarr.
+pub const BAKERY_INSTALL_ALLOWLIST: &[&str] = &["breadcast"];
+
+pub fn command_exists(name: &str) -> bool {
+    let Some(paths) = std::env::var_os("PATH") else {
+        return false;
+    };
+    std::env::split_paths(&paths).any(|dir| {
+        let candidate = dir.join(name);
+        candidate.is_file()
+    })
+}
+
+pub fn pacman_installed(pkg: &str) -> bool {
+    std::process::Command::new("pacman")
+        .args(["-Q", pkg])
+        .stdout(std::process::Stdio::null())
+        .stderr(std::process::Stdio::null())
+        .status()
+        .map(|s| s.success())
+        .unwrap_or(false)
+}
+
+/// Arch package / bakery name: starts alphanumeric, then `[A-Za-z0-9+._-]`.
+pub fn valid_pkg_name(name: &str) -> bool {
+    let bytes = name.as_bytes();
+    !bytes.is_empty()
+        && bytes.len() <= 128
+        && bytes[0].is_ascii_alphanumeric()
+        && bytes
+            .iter()
+            .all(|b| b.is_ascii_alphanumeric() || matches!(*b, b'-' | b'_' | b'+' | b'.'))
+}
+
+pub fn allowed_pacman_packages(names: &[String]) -> Result<Vec<String>, String> {
+    if names.is_empty() {
+        return Err("no packages given".into());
+    }
+    let mut out = Vec::with_capacity(names.len());
+    for name in names {
+        if !valid_pkg_name(name) || !PACMAN_ALLOWLIST.contains(&name.as_str()) {
+            return Err(format!("refusing to install '{name}'"));
+        }
+        if !out.iter().any(|e| e == name) {
+            out.push(name.clone());
+        }
+    }
+    Ok(out)
+}
+
+pub fn allowed_bakery_install(name: &str) -> Result<(), String> {
+    if !valid_pkg_name(name) || !BAKERY_INSTALL_ALLOWLIST.contains(&name) {
+        return Err(format!("refusing to bakery-install '{name}'"));
+    }
+    Ok(())
+}
+
+pub fn bos_settings_dir() -> PathBuf {
+    config::config_dir().join("bos-settings")
+}
+
+/// Pipe `input` to a command's stdin (`pkexec` does not inherit a piped
+/// stdin unless we set it). Used by chpasswd and `pkexec tee`.
+pub async fn run_with_stdin(args: &[&str], input: &str) -> bool {
+    if args.is_empty() {
+        return false;
+    }
+    let Ok(mut child) = tokio::process::Command::new(args[0])
+        .args(&args[1..])
+        .stdin(std::process::Stdio::piped())
+        .stdout(std::process::Stdio::null())
+        .stderr(std::process::Stdio::null())
+        .spawn()
+    else {
+        return false;
+    };
+    if let Some(mut stdin) = child.stdin.take() {
+        use tokio::io::AsyncWriteExt;
+        if stdin.write_all(input.as_bytes()).await.is_err() {
+            return false;
+        }
+    }
+    child.wait().await.map(|s| s.success()).unwrap_or(false)
+}
+
+/// Atomic write with mode 0600 set on the new inode before/after replace,
+/// matching breadcrumbs' `networks.toml` care.
+pub fn write_secure(path: &Path, contents: &str) -> Result<(), String> {
+    if let Some(parent) = path.parent() {
+        std::fs::create_dir_all(parent)
+            .map_err(|e| format!("creating {}: {e}", parent.display()))?;
+    }
+    bread_utils::atomic::write_atomic(path, contents, Some(0o600))
+        .map_err(|e| format!("writing {}: {e}", path.display()))?;
+    #[cfg(unix)]
+    {
+        use std::os::unix::fs::PermissionsExt;
+        let _ = std::fs::set_permissions(path, std::fs::Permissions::from_mode(0o600));
+    }
+    Ok(())
+}
+
+pub fn strip_ansi(s: &str) -> String {
+    let re = regex::Regex::new(r"\x1b\[[0-9;]*[A-Za-z]").expect("ansi regex");
+    re.replace_all(s, "").into_owned()
+}
+
+pub fn fail_output(output: &std::process::Output, what: &str) -> String {
+    let stderr = String::from_utf8_lossy(&output.stderr);
+    let stdout = String::from_utf8_lossy(&output.stdout);
+    let msg = stderr.trim();
+    if !msg.is_empty() {
+        return msg.to_string();
+    }
+    let msg = stdout.trim();
+    if !msg.is_empty() {
+        return msg.to_string();
+    }
+    format!("{what} failed")
+}
+
+pub fn hypr_dir() -> PathBuf {
+    config::config_dir().join("hypr")
+}
+
+pub fn hyprland_conf() -> PathBuf {
+    hypr_dir().join("hyprland.conf")
+}
+
+/// Ensure `hyprland.conf` sources `~/.config/hypr/{fragment}`. Appends a
+/// single source line when missing; does not rewrite the rest of the file.
+pub fn ensure_hypr_source(fragment: &str) -> Result<(), String> {
+    if !valid_fragment(fragment) {
+        return Err(format!("invalid hypr fragment '{fragment}'"));
+    }
+    let dir = hypr_dir();
+    std::fs::create_dir_all(&dir).map_err(|e| e.to_string())?;
+    let path = hyprland_conf();
+    let marker = format!("hypr/{fragment}");
+    let existing = std::fs::read_to_string(&path).unwrap_or_default();
+    if existing.lines().any(|l| l.contains(&marker)) {
+        return Ok(());
+    }
+    let mut text = existing;
+    if !text.is_empty() && !text.ends_with('\n') {
+        text.push('\n');
+    }
+    text.push_str(&format!("source = ~/.config/hypr/{fragment}\n"));
+    config::atomic_write(&path, &text).map_err(|e| e.to_string())
+}
+
+pub fn remove_hypr_source(fragment: &str) -> Result<(), String> {
+    if !valid_fragment(fragment) {
+        return Err(format!("invalid hypr fragment '{fragment}'"));
+    }
+    let path = hyprland_conf();
+    let Ok(existing) = std::fs::read_to_string(&path) else {
+        return Ok(());
+    };
+    let marker = format!("hypr/{fragment}");
+    let filtered: String =
+        existing
+            .lines()
+            .filter(|l| !l.contains(&marker))
+            .fold(String::new(), |mut acc, l| {
+                acc.push_str(l);
+                acc.push('\n');
+                acc
+            });
+    if filtered != existing {
+        config::atomic_write(&path, &filtered).map_err(|e| e.to_string())?;
+    }
+    Ok(())
+}
+
+fn valid_fragment(name: &str) -> bool {
+    let bytes = name.as_bytes();
+    !bytes.is_empty()
+        && bytes.len() <= 64
+        && bytes[0].is_ascii_alphanumeric()
+        && bytes
+            .iter()
+            .all(|b| b.is_ascii_alphanumeric() || matches!(*b, b'-' | b'_' | b'.'))
+}
+
+/// Connection / printer names: no flags, no newlines. Spaces are allowed
+/// (NetworkManager connection ids often have them).
+pub fn valid_nm_id(name: &str) -> bool {
+    let t = name.trim();
+    !t.is_empty()
+        && t.len() <= 256
+        && !t.starts_with('-')
+        && !t.contains('\n')
+        && !t.contains('\0')
+        && !t.contains(';')
+}
+
+pub fn valid_printer_name(name: &str) -> bool {
+    let bytes = name.as_bytes();
+    !bytes.is_empty()
+        && bytes.len() <= 127
+        && bytes[0].is_ascii_alphanumeric()
+        && bytes
+            .iter()
+            .all(|b| b.is_ascii_alphanumeric() || matches!(*b, b'-' | b'_' | b'.'))
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn pkg_name_accepts_arch_names() {
+        assert!(valid_pkg_name("hyprsunset"));
+        assert!(valid_pkg_name("fcitx5-chinese-addons"));
+        assert!(valid_pkg_name("libreoffice-fresh"));
+        assert!(valid_pkg_name("nvidia-utils"));
+    }
+
+    #[test]
+    fn pkg_name_rejects_flags() {
+        assert!(!valid_pkg_name(""));
+        assert!(!valid_pkg_name("-S"));
+        assert!(!valid_pkg_name("--noconfirm"));
+        assert!(!valid_pkg_name("foo;rm"));
+        assert!(!valid_pkg_name("foo bar"));
+    }
+
+    #[test]
+    fn allowlist_rejects_unknown() {
+        assert!(allowed_pacman_packages(&["steam".into()]).is_ok());
+        assert!(allowed_pacman_packages(&["evil".into()]).is_err());
+        assert!(allowed_bakery_install("breadcast").is_ok());
+        assert!(allowed_bakery_install("breadarr").is_err());
+    }
+
+    #[test]
+    fn nm_id_allows_spaces_not_flags() {
+        assert!(valid_nm_id("Home VPN"));
+        assert!(!valid_nm_id("-evil"));
+        assert!(!valid_nm_id("a\nb"));
+        assert!(!valid_nm_id(""));
+    }
+
+    #[test]
+    fn printer_name_is_tight() {
+        assert!(valid_printer_name("Canon-TS6360a"));
+        assert!(!valid_printer_name("foo bar"));
+        assert!(!valid_printer_name("-d"));
+    }
+}

src/src/commands/vpn.rs

@@ -0,0 +1,179 @@
+//! NetworkManager VPN / WireGuard connections. breadcrumbs stays Wi-Fi
+//! profiles; this panel only lists `vpn` and `wireguard` connection types.
+
+use serde::Serialize;
+use tokio::process::Command;
+
+use super::util::{fail_output, valid_nm_id};
+
+#[derive(Serialize, Clone)]
+pub struct VpnConnection {
+    name: String,
+    kind: String,
+    active: bool,
+    autoconnect: bool,
+}
+
+#[derive(Serialize)]
+pub struct VpnStatus {
+    connections: Vec<VpnConnection>,
+    error: Option<String>,
+}
+
+#[tauri::command]
+pub async fn get_vpn_connections() -> VpnStatus {
+    let output = match Command::new("nmcli")
+        .args([
+            "-t",
+            "-f",
+            "NAME,TYPE,STATE,AUTOCONNECT",
+            "connection",
+            "show",
+        ])
+        .output()
+        .await
+    {
+        Ok(o) => o,
+        Err(e) => {
+            return VpnStatus {
+                connections: Vec::new(),
+                error: Some(format!("couldn't run nmcli: {e}")),
+            };
+        }
+    };
+    if !output.status.success() {
+        return VpnStatus {
+            connections: Vec::new(),
+            error: Some(fail_output(&output, "nmcli")),
+        };
+    }
+    let text = String::from_utf8_lossy(&output.stdout);
+    VpnStatus {
+        connections: parse_nm_connections(&text),
+        error: None,
+    }
+}
+
+fn parse_nm_connections(text: &str) -> Vec<VpnConnection> {
+    text.lines()
+        .filter_map(|line| {
+            // nmcli -t escapes ":" in names as "\:".
+            let cols = split_nmcli(line);
+            if cols.len() < 3 {
+                return None;
+            }
+            let kind = cols[1].as_str();
+            if kind != "vpn" && kind != "wireguard" {
+                return None;
+            }
+            let state = cols[2].as_str();
+            let autoconnect = cols.get(3).map(|s| s == "yes").unwrap_or(false);
+            Some(VpnConnection {
+                name: cols[0].clone(),
+                kind: kind.to_string(),
+                active: state == "activated" || state == "activating",
+                autoconnect,
+            })
+        })
+        .collect()
+}
+
+fn split_nmcli(line: &str) -> Vec<String> {
+    let mut out = Vec::new();
+    let mut cur = String::new();
+    let mut chars = line.chars().peekable();
+    while let Some(c) = chars.next() {
+        if c == '\\' {
+            if let Some(n) = chars.next() {
+                cur.push(n);
+            }
+        } else if c == ':' {
+            out.push(std::mem::take(&mut cur));
+        } else {
+            cur.push(c);
+        }
+    }
+    out.push(cur);
+    out
+}
+
+#[tauri::command]
+pub async fn vpn_connect(name: String) -> Result<(), String> {
+    nmcli_con(&["connection", "up", "id", &checked_id(&name)?]).await
+}
+
+#[tauri::command]
+pub async fn vpn_disconnect(name: String) -> Result<(), String> {
+    nmcli_con(&["connection", "down", "id", &checked_id(&name)?]).await
+}
+
+fn checked_id(name: &str) -> Result<String, String> {
+    if !valid_nm_id(name) {
+        return Err(format!("invalid connection name '{name}'"));
+    }
+    Ok(name.trim().to_string())
+}
+
+async fn nmcli_con(args: &[&str]) -> Result<(), String> {
+    let output = Command::new("nmcli")
+        .args(args)
+        .output()
+        .await
+        .map_err(|e| e.to_string())?;
+    if output.status.success() {
+        Ok(())
+    } else {
+        Err(fail_output(&output, "nmcli"))
+    }
+}
+
+#[tauri::command]
+pub async fn vpn_import(path: String) -> Result<(), String> {
+    let path = path.trim();
+    if path.is_empty() || path.contains('\0') || path.contains('\n') {
+        return Err("invalid path".into());
+    }
+    let p = std::path::Path::new(path);
+    if !p.is_absolute() || !p.is_file() {
+        return Err("pick an existing .conf or .ovpn file".into());
+    }
+    let kind = match p
+        .extension()
+        .and_then(|e| e.to_str())
+        .map(|s| s.to_ascii_lowercase())
+        .as_deref()
+    {
+        Some("ovpn") => "openvpn",
+        Some("conf") => "wireguard",
+        _ => return Err("import a WireGuard .conf or OpenVPN .ovpn file".into()),
+    };
+    nmcli_con(&["connection", "import", "type", kind, "file", path]).await
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn parses_wireguard_and_skips_wifi() {
+        let text = "\
+Home WG:wireguard:activated:yes
+Office:vpn:
+NetComm:802-11-wireless:activated
+tailscale0:tun:activated:yes
+";
+        let v = parse_nm_connections(text);
+        assert_eq!(v.len(), 2);
+        assert_eq!(v[0].name, "Home WG");
+        assert!(v[0].active);
+        assert_eq!(v[1].kind, "vpn");
+        assert!(!v[1].active);
+    }
+
+    #[test]
+    fn unescapes_colon_in_name() {
+        let text = r"Work\:VPN:vpn:activated:no";
+        let v = parse_nm_connections(text);
+        assert_eq!(v[0].name, "Work:VPN");
+    }
+}

src/src/lib.rs

@@ -89,7 +89,9 @@ pub fn run() {
             commands::streaming::bakery_update,
             commands::streaming::bakery_list,
             commands::streaming::bakery_update_all,
+            commands::streaming::bakery_install,
             commands::streaming::pacman_system_update,
+            commands::streaming::pacman_install,
             commands::streaming::fwupd_refresh,
             commands::streaming::fwupd_update,
             commands::packages::get_installed_packages,
@@ -111,6 +113,39 @@ pub fn run() {
             commands::breadshot::breadshot_region_clipboard,
             commands::breadmon::open_breadmon,
             commands::breadhelp::open_breadhelp,
+            commands::updates::get_updates_status,
+            commands::nvidia::get_nvidia_offer,
+            commands::nvidia::nvidia_setup,
+            commands::printing::get_printers,
+            commands::printing::set_default_printer,
+            commands::printing::add_ipp_printer,
+            commands::printing::open_printer_settings,
+            commands::vpn::get_vpn_connections,
+            commands::vpn::vpn_connect,
+            commands::vpn::vpn_disconnect,
+            commands::vpn::vpn_import,
+            commands::nightlight::get_nightlight,
+            commands::nightlight::set_nightlight,
+            commands::ime::get_ime_status,
+            commands::ime::set_ime_enabled,
+            commands::ime::open_fcitx_config,
+            commands::a11y::get_a11y_status,
+            commands::a11y::set_cursor_zoom,
+            commands::a11y::set_orca_running,
+            commands::a11y::open_kmag,
+            commands::defaults::get_default_apps,
+            commands::defaults::save_default_apps,
+            commands::channel::get_bakery_track,
+            commands::channel::set_bakery_track,
+            commands::backup::get_backup_config,
+            commands::backup::save_backup_config,
+            commands::backup::restic_init,
+            commands::backup::restic_backup,
+            commands::backup::restic_restore_dry_run,
+            commands::backup::restic_restore,
+            commands::backup::list_restic_snapshots,
+            commands::optional::get_optional_software,
+            commands::optional::enable_flathub,
         ])
         .run(tauri::generate_context!())
         .expect("error while running tauri application");

src/src/screenshot.rs

@@ -23,7 +23,8 @@
 //! `KNOWN_VIEWS`) — every one of them has a real registered component (see
 //! `frontend/src/lib/views/registry.ts`), no Placeholder fallbacks to skip.
 
-use std::path::PathBuf;
+use bread_utils::screenshot_cli::{validate_pair, DEFAULT_HEIGHT, DEFAULT_WIDTH};
+use std::path::{Path, PathBuf};
 use std::time::Duration;
 use tauri::Emitter;
 
@@ -59,6 +60,16 @@ const KNOWN_VIEWS: &[&str] = &[
     "aur",
     "firmware",
     "snapshots",
+    "updates",
+    "printing",
+    "vpn",
+    "nightlight",
+    "ime",
+    "accessibility",
+    "defaults",
+    "channel",
+    "backup",
+    "optional",
     "breadlock",
     "breadshot",
     "breadmon",
@@ -74,13 +85,13 @@ pub struct ScreenshotRequest {
 }
 
 /// `None` for a normal run. Exits the process with an error for an unknown
-/// view, or if `--screenshot` was given without `--output` — before any
-/// Tauri setup happens.
+/// view, or if the `--screenshot` / `--output` pair is incomplete — before
+/// any Tauri setup happens.
 pub fn parse(args: &[String]) -> Option<ScreenshotRequest> {
     let mut view = None;
     let mut output = None;
-    let mut width = 1920u32;
-    let mut height = 1080u32;
+    let mut width = DEFAULT_WIDTH;
+    let mut height = DEFAULT_HEIGHT;
     let mut it = args.iter().skip(1);
     while let Some(arg) = it.next() {
         match arg.as_str() {
@@ -99,6 +110,10 @@ pub fn parse(args: &[String]) -> Option<ScreenshotRequest> {
             _ => {}
         }
     }
+    if let Err(e) = validate_pair(view.as_deref(), output.as_deref().map(Path::new)) {
+        eprintln!("bos-settings: {e}");
+        std::process::exit(1);
+    }
     let view = view?;
     if !KNOWN_VIEWS.contains(&view.as_str()) {
         eprintln!(
@@ -107,13 +122,9 @@ pub fn parse(args: &[String]) -> Option<ScreenshotRequest> {
         );
         std::process::exit(1);
     }
-    let Some(output) = output else {
-        eprintln!("bos-settings: --screenshot requires --output");
-        std::process::exit(1);
-    };
     Some(ScreenshotRequest {
         view,
-        output: output.into(),
+        output: output?.into(),
         width,
         height,
     })