bump VERSION to 0.5.2

The pinned mpv binary breaks on brew ffmpeg major drift (libavcodec.62 vs
.63 shipped a dead player); making it self-contained costs ~100MB for an
app icon. Removing the whole machinery: build.ts app-bundle assembly,
audio-player bundled-binary resolver + probe (spawns PATH mpv again),
CI mpv install + bundle smoke checks, AppIcon.icns, README note.
Cover-art staging (curl + --cover-art-files) is unrelated and stays.

.github/workflows/release.yml

@@ -50,10 +50,7 @@ jobs:
       - name: Install fftw (cavacore build dependency)
         run: |
           if uname -s | grep -qi darwin; then
-            # mpv is required for the release bundle: build.ts copies it into
+            brew install fftw
-            # PodTui.app (signed with the podtui bundle identifier) so macOS
-            # Now Playing shows the PodTui icon instead of a blank placeholder.
-            brew install fftw mpv
           else
             sudo apt-get update
             sudo apt-get install -y libfftw3-dev
@@ -79,16 +76,6 @@ jobs:
           printf 'preload = ["./definitely-missing.ts"]\n' > "$SMOKE_DIR/bunfig.toml"
           cd "$SMOKE_DIR"
           ./podtui-*/podtui --version
-          # macOS tarballs must ship PodTui.app with a working bundled mpv
-          # carrying the podtui bundle identifier — otherwise Now Playing
-          # attribution silently regresses to a blank icon.
-          if [ "${{ matrix.plat }}" = "darwin" ]; then
-            MPV=./podtui-*/PodTui.app/Contents/MacOS/mpv
-            test -x $MPV || { echo "PodTui.app missing bundled mpv"; exit 1; }
-            $MPV --version >/dev/null || { echo "bundled mpv does not launch"; exit 1; }
-            codesign -dvv $MPV 2>&1 | grep -q "Identifier=com.mikefreno.podtui" \
-              || { echo "bundled mpv lacks podtui signing identifier"; exit 1; }
-          fi
 
       - name: Upload artifact
         uses: actions/upload-artifact@v6

README.md

@@ -54,14 +54,6 @@ Linux (arm64/x64). Pick whichever fits your platform.
 brew install mikefreno/tap/podtui
 ```
 
-On macOS the tarball also ships a `PodTui.app` bundle. PodTui plays audio
-through a copy of mpv that lives **inside the bundle**, so macOS attributes
-the Now Playing session to PodTui — the Control Center / lock-screen entry
-shows the PodTui name and icon, and podcast cover art as its artwork —
-rather than a blank placeholder for an unbundled binary. Installers can drop
-`PodTui.app` into `/Applications`; the `podtui` entry point should point at
-`PodTui.app/Contents/MacOS/podtui` so the bundled mpv is used.
-
 ### 2. Standalone tarball (all platforms)
 
 Grab `podtui-<platform>-<arch>.tar.gz` from the latest

build.ts

@@ -131,130 +131,6 @@ if (COMPILE) {
 		}
 	}
 
-	// macOS app bundle: PodTui.app. We run our audio backend (mpv) from
-	// INSIDE the bundle (Contents/MacOS/mpv) so macOS attributes its Now
-	// Playing session to PodTui — the source-app icon + name in Control
-	// Center / lock screen — instead of a blank placeholder for an
-	// unbundled binary. AudioPlayer's resolver prefers this sibling.
-	if (platform === "darwin") {
-		const appRoot = join(tarRoot, "PodTui.app");
-		const macosDir = join(appRoot, "Contents", "MacOS");
-		const resDir = join(appRoot, "Contents", "Resources");
-		mkdirSync(macosDir, { recursive: true });
-		mkdirSync(resDir, { recursive: true });
-
-		copyFileSync(outfile, join(macosDir, "podtui"));
-		for (const lib of [`libopentui.${libExt}`, cavacoreLib]) {
-			const s = join("dist", lib);
-			if (existsSync(s)) copyFileSync(s, join(macosDir, lib));
-		}
-
-		const mpvResolve = Bun.spawnSync(["which", "mpv"]);
-		const mpvPath =
-			mpvResolve.exitCode === 0 ? mpvResolve.stdout.toString().trim() : "";
-		if (mpvPath) {
-			copyFileSync(mpvPath, join(macosDir, "mpv"));
-		} else {
-			// A darwin release tarball without a bundled mpv silently ships
-			// without Now Playing attribution (blank icon). Fail loudly so CI
-			// can't produce it — the runner must have mpv installed.
-			console.error(
-				"Error: mpv not found in PATH — PodTui.app requires a bundled mpv for macOS Now Playing attribution (brew install mpv on the build machine)",
-			);
-			process.exit(1);
-		}
-
-		const icnsSrc = join("assets", "App Icon", "AppIcon.icns");
-		if (existsSync(icnsSrc)) {
-			copyFileSync(icnsSrc, join(resDir, "AppIcon.icns"));
-		} else {
-			console.warn(
-				"Warning: assets/App Icon/AppIcon.icns missing — app bundle has no icon",
-			);
-		}
-
-		// Version for the bundle comes from src/index.tsx (single source of
-		// truth — release.yml requires bumping it in the tag commit).
-		const srcIndex = await Bun.file(join("src", "index.tsx")).text();
-		const versionMatch = srcIndex.match(/const VERSION = "([^"]+)"/);
-		const bundleVersion = versionMatch?.[1];
-		if (!bundleVersion) {
-			console.error("Error: could not read VERSION from src/index.tsx");
-			process.exit(1);
-		}
-
-		Bun.write(
-			join(appRoot, "Contents", "Info.plist"),
-			`<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>CFBundleName</key>
-	<string>PodTui</string>
-	<key>CFBundleDisplayName</key>
-	<string>PodTui</string>
-	<key>CFBundleIdentifier</key>
-	<string>com.mikefreno.podtui</string>
-	<key>CFBundleExecutable</key>
-	<string>podtui</string>
-	<key>CFBundlePackageType</key>
-	<string>APPL</string>
-	<key>CFBundleIconFile</key>
-	<string>AppIcon</string>
-	<key>CFBundleShortVersionString</key>
-	<string>${bundleVersion}</string>
-	<key>CFBundleVersion</key>
-	<string>${bundleVersion}</string>
-	<key>LSMinimumSystemVersion</key>
-	<string>12.0</string>
-</dict>
-</plist>
-`,
-		);
-
-		// Ad-hoc sign so the bundle launches cleanly on fresh machines.
-		// Identity overridable via PODTUI_CODESIGN_IDENTITY (e.g. a Developer
-		// ID cert for release builds); default ad-hoc.
-		const signIdentity = process.env.PODTUI_CODESIGN_IDENTITY || "-";
-		const sign = Bun.spawnSync([
-			"codesign",
-			"--force",
-			"--deep",
-			"-s",
-			signIdentity,
-			appRoot,
-		]);
-		if (sign.exitCode !== 0) {
-			console.warn(
-				`Warning: codesign failed (${sign.stderr.toString().trim()}) — app bundle unsigned`,
-			);
-		}
-
-		// Sign the nested mpv LAST with our bundle identifier. mediaremoted
-		// resolves the Now Playing client from the registering process's
-		// code-signing identifier — without an explicit --identifier codesign
-		// stamps "mpv" (its basename) and the audio center shows a blank
-		// placeholder. Must run after the bundle sign above (a later bundle
-		// re-seal would re-derive the basename identifier).
-		const signMpv = Bun.spawnSync([
-			"codesign",
-			"--force",
-			"-s",
-			signIdentity,
-			"--identifier",
-			"com.mikefreno.podtui",
-			join(macosDir, "mpv"),
-		]);
-		if (signMpv.exitCode !== 0) {
-			console.warn(
-				`Warning: nested mpv signing failed (${signMpv.stderr
-					.toString()
-					.trim()}) — Now Playing attribution won't work`,
-			);
-		}
-		console.log(`App bundle: ${appRoot}`);
-	}
-
 	const tar = Bun.spawnSync([
 		"tar",
 		"-czf",

src/index.tsx

@@ -1,7 +1,7 @@
 import type { Feed } from "./types/feed"
 import type { Episode } from "./types/episode"
 
-const VERSION = "0.5.0";
+const VERSION = "0.5.2";
 
 interface CliArgs {
 	version: boolean;

src/pages/Feed/FeedPage.tsx

@@ -68,7 +68,7 @@ function FeedPage() {
 	// loaded window by 50 episodes. manual mode: Enter on the row. auto mode:
 	// reaching the bottom row fetches automatically (see the effect below).
 	const app = useAppStore();
-	const fetchMoreMode = () => app.state().preferences.fetchMoreMode ?? "manual";
+	const fetchMoreMode = () => app.state().preferences.fetchMoreMode ?? "auto";
 	const showFetchMore = () => feedStore.hasMoreAcrossAll();
 	// Total navigable rows: episodes + the optional Fetch More row.
 	const rowCount = () => episodes().length + (showFetchMore() ? 1 : 0);

src/pages/MyShows/MyShowsPage.tsx

@@ -102,7 +102,7 @@ export function MyShowsPage() {
 	// counterpart to the Feed page's row (which loads every feed). manual
 	// mode: Enter on the row. auto mode: reaching the bottom row fetches
 	// automatically (see the effect below).
-	const fetchMoreMode = () => app.state().preferences.fetchMoreMode ?? "manual";
+	const fetchMoreMode = () => app.state().preferences.fetchMoreMode ?? "auto";
 	const showFetchMore = () =>
 		depth() >= 1 &&
 		!!drilledShowId() &&

src/pages/Settings/PreferencesPanel.tsx

@@ -211,10 +211,10 @@ export function usePreferencesItems(): SettingItem[] {
 			kind: "select",
 			display: () => (prefs().fetchMoreMode === "auto" ? "Auto" : "Manual"),
 			help: () =>
-				`How the Feed and per-show episode lists load older episodes.\nManual: a "[Fetch More]" button at the bottom of the list.\nAuto: fetches automatically when reaching the bottom.\nType: select\nDefault: manual\nCurrent: ${prefs().fetchMoreMode === "auto" ? "Auto" : "Manual"}\nCycle with j/k; Enter to apply.`,
+				`How the Feed and per-show episode lists load older episodes.\nManual: a "[Fetch More]" button at the bottom of the list.\nAuto: fetches automatically when reaching the bottom.\nType: select\nDefault: auto\nCurrent: ${prefs().fetchMoreMode === "auto" ? "Auto" : "Manual"}\nCycle with j/k; Enter to apply.`,
 			cycle: (dir) => {
 				const modes: Array<"manual" | "auto"> = ["manual", "auto"];
-				const idx = modes.indexOf(prefs().fetchMoreMode ?? "manual");
+				const idx = modes.indexOf(prefs().fetchMoreMode ?? "auto");
 				const next = modes[(idx + dir + modes.length) % modes.length];
 				app.updatePreferences({ fetchMoreMode: next });
 			},

src/stores/app.ts

@@ -43,7 +43,7 @@ const defaultPreferences: UserPreferences = {
 	autoDownloadScope: "all",
 	autoDownloadWhitelist: [],
 	autoJumpToPlayer: true,
-	fetchMoreMode: "manual",
+	fetchMoreMode: "auto",
 	refreshIntervalMinutes: 30,
 };
 

src/stores/visualizer.ts

@@ -55,6 +55,9 @@ const FRAME_INTERVAL = 33;
 /** Number of PCM samples to read per frame (512 is a good FFT window) */
 const SAMPLES_PER_FRAME = 512;
 
+/** Timer handle as returned by setTimeout/setInterval in this runtime. */
+type TimerHandle = ReturnType<typeof setTimeout>;
+
 // ── Types ────────────────────────────────────────────────────────────────
 
 export interface VisualizerStore {
@@ -96,9 +99,9 @@ function createVisualizerStore(): VisualizerStore {
 	// pause/resume (segments survive; only the ffmpeg pass is killed) and
 	// dropped only on episode change, stop, disable, or unload.
 	let pcm: EpisodePcmCache | null = null;
-	let frameTimer: ReturnType<typeof setInterval> | null = null;
+	let frameTimer: TimerHandle | null = null;
 	let sampleBuffer: Float64Array | null = null;
-	let unloadTimer: ReturnType<typeof setTimeout> | null = null;
+	let unloadTimer: TimerHandle | null = null;
 
 	// What the running pipeline was started with — lets the playback effect
 	// tell "nothing changed, stay warm" from "must restart".
@@ -209,6 +212,8 @@ function createVisualizerStore(): VisualizerStore {
 			clearInterval(frameTimer);
 			frameTimer = null;
 		}
+		clearTimeout(seekDecodeTimer);
+		seekDecodeTimer = undefined;
 		if (pcm) {
 			pcm.stop();
 			// Keep the (now cache-less, url-tagged) object: a re-start of the
@@ -233,6 +238,10 @@ function createVisualizerStore(): VisualizerStore {
 			clearInterval(frameTimer);
 			frameTimer = null;
 		}
+		// Cancel any debounced seek-decode: it would restart ffmpeg while
+		// paused, defeating the "no background CPU while paused" contract.
+		clearTimeout(seekDecodeTimer);
+		seekDecodeTimer = undefined;
 		if (pcm) pcm.pauseDecode();
 		// Cava plan + sampleBuffer stay alive — cheap to reuse on resume.
 		// Clear the loading spinner: if the pipeline never produced bars
@@ -375,6 +384,7 @@ function createVisualizerStore(): VisualizerStore {
 	// while the last frame holds.
 
 	let lastSyncPosition = 0;
+	let seekDecodeTimer: TimerHandle | undefined;
 	createEffect(
 		on(audioPlaybackSignals.position, (pos) => {
 			if (!audioPlaybackSignals.isPlaying() || !pcm) {
@@ -386,7 +396,16 @@ function createVisualizerStore(): VisualizerStore {
 			lastSyncPosition = pos;
 
 			if (delta > 2) {
-				pcm.ensureDecodeAround(pos);
+				// Debounce: holding the seek key fires a jump per poll tick —
+				// without debounce each one restarts ffmpeg, spamming network
+				// reconnects against the stream's server. Wait for the user to
+				// settle, then decode at the final position.
+				clearTimeout(seekDecodeTimer);
+				const target = pcm; // capture for the timer
+				seekDecodeTimer = setTimeout(() => {
+					seekDecodeTimer = undefined;
+					target.ensureDecodeAround(untrack(audioPlaybackSignals.position));
+				}, 400);
 			}
 		}),
 	);

src/types/settings.ts

@@ -90,7 +90,7 @@ export type AppSettings = {
 	visualizer: VisualizerSettings;
 };
 
-/** How the Feed and per-show episode lists load older episodes (default: manual "[Fetch More]"). */
+/** How the Feed and per-show episode lists load older episodes (default: auto). */
 export type FetchMoreMode = "manual" | "auto";
 
 /** Which shows the auto-download setting applies to (default: all). */
@@ -107,7 +107,7 @@ export type UserPreferences = {
 	autoDownloadWhitelist: string[];
 	/** Jump to the Player view automatically when playback starts (default: true) */
 	autoJumpToPlayer: boolean;
-	/** Load older episodes from the Feed list: manual button or automatic at the bottom (default: manual). */
+	/** Load older episodes from the Feed list: manual button or automatic at the bottom (default: auto). */
 	fetchMoreMode: FetchMoreMode;
 	/** Minutes between automatic background feed refreshes (default: 30). */
 	refreshIntervalMinutes: number;

src/utils/app-persistence.ts

@@ -47,7 +47,7 @@ const defaultPreferences: UserPreferences = {
 	autoDownloadScope: "all",
 	autoDownloadWhitelist: [],
 	autoJumpToPlayer: true,
-	fetchMoreMode: "manual",
+	fetchMoreMode: "auto",
 	refreshIntervalMinutes: 30,
 };
 

src/utils/audio-pcm-cache.ts

@@ -41,6 +41,14 @@ const BYTES_PER_SAMPLE = 2; // s16le
 /** Initial segment capacity: 4 Mi samples ≈ 190 s of audio (8 MB). */
 const INITIAL_CAPACITY_SAMPLES = 4 * 1024 * 1024;
 
+/**
+ * Gap (seconds) a running decode pass may close on its own before a restart
+ * at the seek target is cheaper than waiting: at 4x pacing, 15s of undecoded
+ * audio closes in ~4s — about the cost of a network reconnect + range
+ * request for a fresh ffmpeg pass. Beyond the gap, restart at the target.
+ */
+const CLOSE_IN_PLACE_GAP_SEC = 15;
+
 /**
  * Monotonically increasing generation counter.
  * Each startDecode() increments this; the read loop checks it to know
@@ -72,8 +80,8 @@ export class EpisodePcmCache {
 	private segments: Segment[] = [];
 	private generation = 0;
 	private _decoding = false;
-	/** Base offset (playback seconds) of the running decode pass; null when idle. */
+	/** The running pass's segment (base + frontier); null when idle. */
-	private activeBaseSec: number | null = null;
+	private activeSegment: Segment | null = null;
 	readonly url: string;
 	readonly sampleRate: number;
 
@@ -87,6 +95,13 @@ export class EpisodePcmCache {
 		return this._decoding;
 	}
 
+	/** Base (playback seconds) of the running decode pass; null when idle. */
+	get activeDecodeBaseSec(): number | null {
+		return this._decoding && this.activeSegment
+			? this.activeSegment.baseSec
+			: null;
+	}
+
 	/** End (playback seconds) of the furthest-decoded segment. */
 	get coverageEndSec(): number {
 		let end = 0;
@@ -184,14 +199,14 @@ export class EpisodePcmCache {
 			stdin: "ignore",
 		});
 		this._decoding = true;
-		this.activeBaseSec = segment.baseSec;
+		this.activeSegment = segment;
 		this.readLoop(myGeneration, segment);
 
 		this.proc.exited
 			.then((code) => {
 				if (this.generation === myGeneration) {
 					this._decoding = false;
-					this.activeBaseSec = null;
+					this.activeSegment = null;
 					// Exit 0 == decoded to stream EOF.
 					if (code === 0) segment.finished = true;
 				}
@@ -199,7 +214,7 @@ export class EpisodePcmCache {
 			.catch(() => {
 				if (this.generation === myGeneration) {
 					this._decoding = false;
-					this.activeBaseSec = null;
+					this.activeSegment = null;
 				}
 			});
 	}
@@ -223,23 +238,30 @@ export class EpisodePcmCache {
 	 * new segment at `sec` (seek into a hole / resume past cached audio).
 	 */
 	ensureDecodeAround(sec: number): void {
-		if (this._decoding) {
+		// Data already on hand: nothing needed here; only keep the tail
-			// A decode pass fills monotonically FORWARD from its base. Only a
+		// filling if the decode is idle and the episode is unfinished.
-			// target at/after the active base is eventually covered by it —
-			// a target BEHIND the base (seek into an undecoded hole ahead of
-			// the active pass) never is: kill the pass and restart at sec.
-			if (this.activeBaseSec !== null && sec >= this.activeBaseSec) return;
-			this.startDecode(Math.max(0, sec));
-			return;
-		}
 		if (this.covers(sec)) {
-			// Covered here: continue the tail so the cache keeps filling
+			if (this._decoding || this.decodeFinished) return;
-			// past the position (unless the whole episode is decoded).
-			if (this.decodeFinished) return;
 			this.startDecode(this.coverageEndSec > sec ? this.coverageEndSec : sec);
 			return;
 		}
-		// Seek into an undecoded region: start a fresh segment there.
+
+		if (this._decoding && this.activeSegment !== null) {
+			// A decode pass fills monotonically FORWARD from its base. Targets
+			// behind the base are unreachable — restart at the target.
+			if (sec < this.activeSegment.baseSec) {
+				this.startDecode(Math.max(0, sec));
+				return;
+			}
+			// Target past the pass's frontier: a SMALL gap closes on its own
+			// (4x pacing covers 15s in ~4s — about what a cold restart costs
+			// to reconnect + range-request a network stream), but a FAR-FORWARD
+			// seek would otherwise mean minutes of frozen bars while the pass
+			// chews through the skipped region. Restart at the target.
+			const frontier =
+				this.activeSegment.baseSec + this.activeSegment.written / this.sampleRate;
+			if (sec - frontier <= CLOSE_IN_PLACE_GAP_SEC) return;
+		}
 		this.startDecode(Math.max(0, sec));
 	}
 
@@ -275,7 +297,7 @@ export class EpisodePcmCache {
 	pauseDecode(): void {
 		this.generation = ++globalGeneration;
 		this._decoding = false;
-		this.activeBaseSec = null;
+		this.activeSegment = null;
 		this.killProcess();
 	}
 

src/utils/audio-player.ts

@@ -29,7 +29,7 @@
 import { platform } from "os";
 import { existsSync, unlinkSync } from "fs";
 import { tmpdir } from "os";
-import { dirname, join } from "path";
+import { join } from "path";
 import type { Socket, Subprocess } from "bun";
 
 // ── Types ────────────────────────────────────────────────────────────
@@ -115,53 +115,13 @@ function mpvSocketPath(): string {
 	// Per-instance, not just per-pid: tests (and backend switching) create
 	// several MpvBackend objects in ONE bun process — a pid-only path makes
 	// every daemon bind the same socket, so later daemons unlink the path
-	// out from under earlier ones and IPC cross-talks between backends.
+	// out from under each other.
 	return join(
 		tmpdir(),
 		`podtui-mpv-${process.pid}-${mpvInstance++}.sock`,
 	);
 }
 
-/**
- * mpv executable to use. Prefers a sibling `mpv` inside the app bundle
- * (macOS PodTui.app/Contents/MacOS/mpv): running mpv from inside the bundle
- * makes macOS attribute its Now Playing session to PodTui — source-app icon
- * and name in Control Center — instead of a blank placeholder for an
- * unbundled binary.
- *
- * The bundled copy is verified to actually launch: it links against brew's
- * dylibs by absolute path, and a Homebrew ffmpeg major upgrade can break it
- * (dylib gone → immediate non-zero exit). If the bundled binary can't run,
- * fall back to PATH mpv so audio keeps working — the icon degrades to blank
- * rather than playback dying. Probed once per process.
- */
-let resolvedMpv: string | null | undefined; // undefined = not yet probed
-
-function mpvLaunches(binary: string): boolean {
-	try {
-		const proc = Bun.spawnSync([binary, "--version"], { timeout: 3000 });
-		return proc.exitCode === 0;
-	} catch {
-		return false;
-	}
-}
-
-function resolveMpvBinary(): string | null {
-	if (resolvedMpv !== undefined) return resolvedMpv;
-	let resolved: string | null = null;
-	try {
-		const bundled = join(dirname(process.execPath), "mpv");
-		if (existsSync(bundled) && mpvLaunches(bundled)) {
-			resolved = bundled;
-		}
-	} catch {
-		/* process.execPath unusable — fall through to PATH */
-	}
-	if (!resolved) resolved = which("mpv");
-	resolvedMpv = resolved;
-	return resolved;
-}
-
 // ── mpv JSON IPC connection ─────────────────────────────────────────
 //
 // One persistent Unix-socket connection to the resident mpv daemon. Lines
@@ -377,7 +337,7 @@ export class MpvBackend implements AudioBackend {
 
 		this.proc = Bun.spawn(
 			[
-				resolveMpvBinary() ?? "mpv",
+				"mpv",
 				"--no-video",
 				"--no-terminal",
 				"--really-quiet",
@@ -799,7 +759,7 @@ export interface DetectedPlayer {
 export function detectPlayers(): DetectedPlayer[] {
 	const players: DetectedPlayer[] = [];
 
-	const mpvPath = resolveMpvBinary();
+	const mpvPath = which("mpv");
 	if (mpvPath) {
 		players.push({
 			name: "mpv",
@@ -833,13 +793,13 @@ export function createAudioBackend(preferred?: BackendName): AudioBackend {
 		if (backend) return backend;
 	}
 
-	return resolveMpvBinary() ? new MpvBackend() : new NoopBackend();
+	return which("mpv") ? new MpvBackend() : new NoopBackend();
 }
 
 function createBackendByName(name: BackendName): AudioBackend | null {
 	switch (name) {
 		case "mpv":
-			return resolveMpvBinary() ? new MpvBackend() : null;
+			return which("mpv") ? new MpvBackend() : null;
 		case "none":
 			return new NoopBackend();
 	}

src/utils/config.ts

@@ -13,6 +13,7 @@
  * always overwrite — no backup files are created.
  */
 
+import { mkdir } from "fs/promises";
 import { ensureConfigDir, getConfigDir, getConfigFilePath } from "./config-dir";
 import type {
 	AppSettings,
@@ -58,15 +59,34 @@ let writeChain: Promise<void> = Promise.resolve();
 
 /** Update sections of config.json (read-modify-write, serialized, overwrite). */
 export function updateConfig(patch: Partial<PodTuiConfig>): void {
+	// Capture the target path AND the patch data eagerly, at call time:
+	// the write chain defers execution, and both the config dir (tests
+	// re-point XDG_CONFIG_HOME between ops) and the state object (stores
+	// mutate in place) move under a pending write. Without the capture, a
+	// queued save writes the LATEST state into whatever directory is
+	// current when the chain drains — a cross-directory misdelivery that
+	// was the source of a flaky "enabled:false survives reload" test.
+	const configPath = getConfigFilePath(CONFIG_FILE);
+	const configDir = getConfigDir();
+	const snapshot = JSON.parse(JSON.stringify(patch)) as Partial<PodTuiConfig>;
 	writeChain = writeChain.then(async () => {
 		try {
-			await ensureConfigDir();
+			await migrateOnce();
-			const current = await loadConfig();
+			await mkdir(configDir, { recursive: true });
-			const next = { ...current, ...patch };
+			let current: PodTuiConfig = {};
-			await Bun.write(
+			try {
-				getConfigFilePath(CONFIG_FILE),
+				const file = Bun.file(configPath);
-				JSON.stringify(next, null, 2),
+				if (await file.exists()) {
-			);
+					const raw = await file.json();
+					if (raw && typeof raw === "object") {
+						current = raw as PodTuiConfig;
+					}
+				}
+			} catch {
+				/* unreadable existing config — treat as empty */
+			}
+			const next = { ...current, ...snapshot };
+			await Bun.write(configPath, JSON.stringify(next, null, 2));
 		} catch {
 			// Fire-and-forget persistence — silently ignore write errors.
 		}

tests/audio-pcm-cache.test.ts

@@ -97,6 +97,55 @@ function tmpWav(): string {
 }
 
 const hasFfmpeg = !!Bun.which("ffmpeg");
+
+test.skipIf(!hasFfmpeg)(
+	"far-forward seek into undecoded territory restarts decode AT the target (bars recover in seconds, not minutes)",
+	async () => {
+		const wav = tmpWav();
+		writeSineWav(wav, 60);
+		const cache = new EpisodePcmCache({ url: wav });
+		try {
+			cache.startDecode(0);
+			await waitForCoverage(cache, 1);
+
+			// Skipping 45s ahead while the pass still crawls at 4x must restart
+			// the segment at the target — waiting for the frontier to chew
+			// through the skipped region is minutes of frozen bars.
+			cache.ensureDecodeAround(45);
+			expect(cache.decoding).toBe(true);
+			expect(cache.activeDecodeBaseSec).toBe(45);
+			await waitForCoverage(cache, 45.1);
+		} finally {
+			cache.stop();
+			await Bun.$`rm -f ${wav}`.quiet();
+		}
+	},
+	{ timeout: 20000 },
+);
+
+test.skipIf(!hasFfmpeg)(
+	"small forward gap closes in place — no needless reconnect",
+	async () => {
+		const wav = tmpWav();
+		writeSineWav(wav, 60);
+		const cache = new EpisodePcmCache({ url: wav });
+		try {
+			cache.startDecode(0);
+			await waitForCoverage(cache, 2);
+
+			// ~5s past the running frontier: at 4x pacing this closes in ~1.5s,
+			// cheaper than a reconnect — the pass must NOT restart.
+			const target = cache.coverageEndSec + 5;
+			cache.ensureDecodeAround(target);
+			expect(cache.activeDecodeBaseSec).toBe(0);
+			await waitForCoverage(cache, target);
+		} finally {
+			cache.stop();
+			await Bun.$`rm -f ${wav}`.quiet();
+		}
+	},
+	{ timeout: 20000 },
+);
 const FIVE_SEC_BASE = 5 * SAMPLE_RATE; // decode offset for position-mapping tests
 
 test.skipIf(!hasFfmpeg)(