fix(memory): bound visualizer PCM cache and feed episode cache

The visualizer's PCM cache decoded the entire episode into RAM (22050 Hz mono s16 ~160 MB/hr of audio) and held it until stop() — a 3-hour episode pinned ~500 MB and long-form content hit 2.5 GB. The 4x decode also pulled the whole remote file even when only minutes were listened to. - audio-pcm-cache: sliding window around the playback position — the decode head caps at maxAheadSec (600s) ahead of the cursor, segments older than keepBehindSec (300s) are pruned, and the tail refills as playback advances. Steady state ~40 MB regardless of episode length; a backward seek past the window restarts a segment there (the existing seek-hole mechanism, no new failure mode). - feed: cap the full-parse episode cache at 1000 episodes/feed so archive-heavy subscriptions can't pin their entire history in RAM; the visible list stays bounded by the user's cache preference and fetch-more keeps working within the ceiling. - tests: pin the new head-cap and prune contracts (8/8 in audio-pcm-cache.test.ts; full suite 193 pass). Also includes the in-flight cleanup/refactor pass (cover-art resolve helper, page and comment tightening, ESLint config removal).
2026-08-12 21:02:19 -04:00
parent 77531ce41d
commit d7aec4e810
33 changed files with 941 additions and 774 deletions
--- a/src/api/rss-parser.ts
+++ b/src/api/rss-parser.ts
@@ -100,24 +100,20 @@ export const parseRSSItem = (item: string, feedUrl: string, index: number): Epis
  const epDescription = cleanField(getTagValue(item, "description"))
  const pubDate = new Date(getTagValue(item, "pubDate") || Date.now())

-  // Audio URL + file size + MIME type from <enclosure>
  const enclosure = item.match(/<enclosure[^>]*url=["']([^"']+)["'][^>]*>/i)
  const audioUrl = enclosure?.[1] ?? ""
  const fileSizeStr = getAttr(item, "enclosure", "length")
  const fileSize = fileSizeStr ? parseInt(fileSizeStr, 10) : undefined
  const mimeType = getAttr(item, "enclosure", "type") || undefined

-  // Duration from <itunes:duration>
  const durationRaw = getTagValue(item, "itunes:duration")
  const duration = parseDuration(durationRaw)

-  // Episode & season numbers
  const episodeNumRaw = getTagValue(item, "itunes:episode")
  const episodeNumber = episodeNumRaw ? parseInt(episodeNumRaw, 10) : undefined
  const seasonNumRaw = getTagValue(item, "itunes:season")
  const seasonNumber = seasonNumRaw ? parseInt(seasonNumRaw, 10) : undefined

-  // Episode type & explicit
  const episodeType = parseEpisodeType(getTagValue(item, "itunes:episodeType"))
  const explicitRaw = getTagValue(item, "itunes:explicit").toLowerCase()
  const explicit = explicitRaw === "yes" || explicitRaw === "true" ? true : undefined
@@ -135,7 +131,6 @@ export const parseRSSItem = (item: string, feedUrl: string, index: number): Epis
    pubDate,
  }

-  // Only set optional fields if present
  if (episodeNumber !== undefined && !isNaN(episodeNumber)) ep.episodeNumber = episodeNumber
  if (seasonNumber !== undefined && !isNaN(seasonNumber)) ep.seasonNumber = seasonNumber
  if (episodeType) ep.episodeType = episodeType
--- a/src/components/EpisodeList.tsx
+++ b/src/components/EpisodeList.tsx
@@ -0,0 +1,246 @@
+/**
+ * Shared list-row and preview components for the Feed and My Shows pages.
+ *
+ * Both pages render the same episode rows (marker + title, optional subtitle
+ * line, date/duration/selection/download meta line), "[Fetch More]" rows, and
+ * hovered-episode / fetch-more preview panes; the pages differ only in the
+ * props they pass (subtitle line, hint text, manual-mode wording). Extracted
+ * so the previously 3-4-level-nested render blocks run as flat named
+ * components.
+ *
+ * Anything that can change at runtime arrives as a signal getter: Solid
+ * components do not re-render, so only props that are called inside the
+ * component's own JSX stay reactive (focus, selection, download state).
+ */
+
+import { Show } from "solid-js";
+import { format } from "date-fns";
+import type { RGBA } from "@opentui/core";
+import { useTheme } from "@/context/ThemeContext";
+import { useScrollIntoView } from "@/hooks/useScrollIntoView";
+import { NF_ICONS } from "@/utils/nerd-fonts";
+import { LoadingIndicator } from "@/components/LoadingIndicator";
+import type { Episode } from "@/types/episode";
+
+// ── formatting helpers ──────────────────────────────────────────────────────
+export const formatDate = (d: Date) => format(d, "MMM d, yyyy");
+
+export const formatDuration = (s: number) => {
+	const mins = Math.floor(s / 60);
+	const hrs = Math.floor(mins / 60);
+	return hrs > 0 ? `${hrs}h ${mins % 60}m` : `${mins}m`;
+};
+
+// ── EpisodeRow ──────────────────────────────────────────────────────────────
+export function EpisodeRow(props: {
+	/** The episode this row renders. */
+	episode: Episode;
+	/** Optional second line under the title (podcast/show name). */
+	subtitle?: () => string | undefined;
+	/** For index signal (row position). */
+	index: () => number;
+	/** Focused row index in this list (-1 while the Fetch More row is
+	 *  focused, so no episode row draws the cursor). */
+	focused: () => number;
+	/** Whether the current pane has keyboard focus. */
+	active: () => boolean;
+	/** Whether this episode is selection-marked. */
+	selected: () => boolean;
+	downloadLabel: () => string;
+	downloadColor: () => RGBA;
+	marker: () => string;
+	onMouseDown: () => void;
+}) {
+	const { theme } = useTheme();
+	const muted = () => theme.muted || theme.text;
+	const ref = useScrollIntoView(() => props.index() === props.focused());
+	const isFocused = () => props.index() === props.focused();
+	const bg = () =>
+		isFocused() && props.active()
+			? theme.primary
+			: isFocused()
+				? theme.border
+				: undefined;
+	const fg = () =>
+		isFocused() && props.active()
+			? theme.surface
+			: isFocused()
+				? theme.selectedListItemText ?? theme.text
+				: theme.text;
+	return (
+		<box
+			ref={ref}
+			flexDirection="column"
+			gap={0}
+			paddingRight={1}
+			backgroundColor={bg()}
+			onMouseDown={props.onMouseDown}
+		>
+			<box flexDirection="row" gap={1}>
+				<text flexShrink={0} fg={fg()}>
+					{isFocused() ? props.marker() : " "}
+				</text>
+				<text wrapMode="none" truncate fg={fg()}>
+					{props.episode.episodeNumber ? `#${props.episode.episodeNumber} ` : ""}
+					{props.episode.title}
+				</text>
+			</box>
+			{/* podcast name on its own row — readable at a glance; the 50%
+			    current pane fits it in full for typical names, and truncate
+			    keeps the row one line tall either way */}
+			<Show when={props.subtitle?.()}>
+				<box paddingLeft={2}>
+					<text
+						wrapMode="none"
+						truncate
+						fg={isFocused() ? theme.surface : theme.textSecondary}
+					>
+						{props.subtitle?.()}
+					</text>
+				</box>
+			</Show>
+			<box flexDirection="row" gap={2} paddingLeft={2}>
+				<text flexShrink={0} fg={isFocused() ? theme.surface : theme.info}>
+					{formatDate(props.episode.pubDate)}
+				</text>
+				<text flexShrink={0} fg={isFocused() ? theme.surface : muted()}>
+					{formatDuration(props.episode.duration)}
+				</text>
+				<Show when={props.selected()}>
+					<text flexShrink={0} fg={theme.warning}>
+						●
+					</text>
+				</Show>
+				<Show when={props.downloadLabel()}>
+					<text flexShrink={0} fg={props.downloadColor()}>
+						{props.downloadLabel()}
+					</text>
+				</Show>
+			</box>
+		</box>
+	);
+}
+
+// ── FetchMoreRow ────────────────────────────────────────────────────────────
+export function FetchMoreRow(props: {
+	/** Row index of the Fetch More button within the list. */
+	index: () => number;
+	/** Focused row index. */
+	focused: () => number;
+	/** True while the Fetch More row itself is focused. */
+	onMore: () => boolean;
+	/** Whether the current pane has keyboard focus. */
+	active: () => boolean;
+	isLoadingMore: () => boolean;
+	nerd: boolean;
+	marker: () => string;
+	onMouseDown: () => void;
+}) {
+	const { theme } = useTheme();
+	const ref = useScrollIntoView(props.onMore);
+	const bg = () =>
+		props.index() === props.focused() && props.active()
+			? theme.primary
+			: props.index() === props.focused()
+				? theme.border
+				: undefined;
+	const fg = () =>
+		props.index() === props.focused() && props.active()
+			? theme.surface
+			: props.index() === props.focused()
+				? theme.selectedListItemText ?? theme.text
+				: theme.text;
+	return (
+		<box
+			ref={ref}
+			flexDirection="row"
+			gap={1}
+			paddingRight={1}
+			backgroundColor={bg()}
+			onMouseDown={props.onMouseDown}
+		>
+			<text fg={fg()}>{props.onMore() ? props.marker() : " "}</text>
+			{props.nerd && (
+				<text fg={fg()}>{NF_ICONS.more}</text>
+			)}
+			<Show
+				when={!props.isLoadingMore()}
+				fallback={<LoadingIndicator label="Fetching…" />}
+			>
+				<text fg={fg()}>[Fetch More]</text>
+			</Show>
+		</box>
+	);
+}
+
+// ── EpisodePreview ──────────────────────────────────────────────────────────
+export function EpisodePreview(props: {
+	episode: () => Episode;
+	/** Optional line under the meta row (podcast/show name). */
+	subtitle?: () => string | undefined;
+	author: () => string | undefined;
+	downloadLabel: () => string;
+	downloadColor: () => RGBA;
+	/** Page-specific action-hint line. */
+	hint: () => string;
+}) {
+	const { theme } = useTheme();
+	const muted = () => theme.muted || theme.text;
+	return (
+		<box flexDirection="column" gap={1} padding={1}>
+			<text fg={theme.textPrimary ?? theme.text}>
+				<strong>
+					{props.episode().episodeNumber ? `#${props.episode().episodeNumber} ` : ""}
+					{props.episode().title}
+				</strong>
+			</text>
+			<box flexDirection="row" gap={2}>
+				<text fg={theme.info}>{formatDate(props.episode().pubDate)}</text>
+				<text fg={muted()}>{formatDuration(props.episode().duration)}</text>
+				<Show when={props.downloadLabel()}>
+					<text fg={props.downloadColor()}>{props.downloadLabel()}</text>
+				</Show>
+			</box>
+			<Show when={props.subtitle?.()}>
+				<text fg={muted()}>{props.subtitle?.()}</text>
+			</Show>
+			<Show when={props.author()}>
+				<text fg={muted()}>by {props.author()}</text>
+			</Show>
+			<box height={1} />
+			<text fg={theme.textSecondary}>
+				{props.episode().description?.slice(0, 400) ?? "No description available."}
+				{(props.episode().description?.length ?? 0) > 400 ? "…" : ""}
+			</text>
+			<box height={1} />
+			<text fg={muted()}>{props.hint()}</text>
+		</box>
+	);
+}
+
+// ── FetchMorePreview ────────────────────────────────────────────────────────
+export function FetchMorePreview(props: {
+	isLoadingMore: () => boolean;
+	fetchMoreMode: () => string;
+	/** Manual-mode explanation line ("across all feeds" vs "for this show"). */
+	manualText: () => string;
+}) {
+	const { theme } = useTheme();
+	const muted = () => theme.muted || theme.text;
+	return (
+		<box flexDirection="column" gap={1} padding={1}>
+			<text fg={theme.textPrimary ?? theme.text}>
+				<strong>[Fetch More]</strong>
+			</text>
+			<text fg={muted()}>
+				{props.isLoadingMore()
+					? "Loading the next batch of episodes…"
+					: props.fetchMoreMode() === "auto"
+						? "Auto mode: the next batch loads automatically at the bottom of the list."
+						: props.manualText()}
+			</text>
+			<box height={1} />
+			<text fg={muted()}>enter: load more · h back</text>
+		</box>
+	);
+}
--- a/src/components/Shell.tsx
+++ b/src/components/Shell.tsx
@@ -169,7 +169,6 @@ export function Shell() {
 			nav.backspaceCommand();
 			return;
 		}
-		// printable char
 		if (evt.name && evt.name.length === 1 && !evt.ctrl && !evt.meta) {
 			evt.preventDefault();
 			nav.appendCommand(evt.name);
--- a/src/context/ThemeContext.tsx
+++ b/src/context/ThemeContext.tsx
@@ -10,7 +10,8 @@ import {
  generateSyntax,
  generateSubtleSyntax,
 } from "../utils/syntax-highlighter";
-import { resolveTerminalTheme, loadThemes } from "../utils/theme";
+import { resolveTerminalTheme } from "../utils/theme";
+import { getCustomThemes } from "../utils/custom-themes";
 import { detectModeFromBackground } from "../utils/system-theme";
 import { createSimpleContext } from "./helper";
 import {
@@ -175,7 +176,7 @@ export const { use: useTheme, provider: ThemeProvider } = createSimpleContext({

    function init() {
      resolveSystemTheme();
-      loadThemes()
+      getCustomThemes()
        .then((custom) => {
          setStore(
            produce((draft) => {
@@ -187,7 +188,6 @@ export const { use: useTheme, provider: ThemeProvider } = createSimpleContext({
          setStore("active", "catppuccin");
        })
        .finally(() => {
-          // Only set ready if not waiting for system theme
          if (store.active !== "system") {
            setStore("ready", true);
          }
--- a/src/hooks/useAudio.ts
+++ b/src/hooks/useAudio.ts
@@ -297,6 +297,34 @@ function stopPolling(): void {
 // from `--cover-art-files`. Shared helper (utils/cover-art.ts) fetches the
 // podcast cover to a temp file BEFORE playback starts, bounded to 3s.

+/** Resolve cover art to a local path for mpv's --cover-art-files, per the
+ *  call site's latency budget:
+ *  "cache"   — disk cache only (sync): resume paths must never wait on the
+ *              network, so a miss plays artless and warms for next time.
+ *  "bounded" — disk hit, else fetch capped at 1.2s: cold play needs the art
+ *              at file LOAD, but a slow cover server must not stall audio.
+ *  "await"   — disk hit, else full (8s-bounded) fetch: boot restore preloads
+ *              while feeds/progress load anyway, so the wait is free and the
+ *              cover must be present when the file loads.
+ * fetchCoverArt already short-circuits on the disk cache, so "await" costs
+ * nothing on a warm cache. */
+async function resolveCoverArt(
+	coverUrl: string | undefined,
+	mode: "cache" | "bounded" | "await",
+): Promise<string | null> {
+	if (!coverUrl) return null;
+	if (mode === "cache") return cachedCoverPath(coverUrl);
+	if (mode === "bounded") {
+		const cached = cachedCoverPath(coverUrl);
+		if (cached) return cached;
+		return Promise.race([
+			fetchCoverArt(coverUrl),
+			new Promise<null>((resolve) => setTimeout(() => resolve(null), 1200)),
+		]);
+	}
+	return fetchCoverArt(coverUrl);
+}
+
 async function play(episode: Episode): Promise<void> {
 	const b = ensureBackend();
 	setError(null);
@@ -321,21 +349,15 @@ async function play(episode: Episode): Promise<void> {
 		// episode's own image (feeds added by URL may lack a channel cover).
 		const downloadStore = useDownloadStore();
 		const url = downloadStore.getDownloadedFilePath(episode.id) ?? episode.audioUrl;
-		const coverUrl = feed?.podcast.coverUrl ?? episode.imageUrl;
 		// Cover art only applies at file LOAD (the runtime video-add fallback
 		// never becomes an albumart track), so a cold-cache play must wait for
 		// the fetch or play artless. Serve the disk cache synchronously; on a
-		// miss, await the single-flight fetch with a 1.2s cap (covers fetch in
-		// ~300ms typically) — past the cap, play bare and let the fetch warm
-		// the cache for next time.
-		let coverArtPath = coverUrl ? cachedCoverPath(coverUrl) : null;
-		if (coverUrl && !coverArtPath) {
-			const path = await Promise.race([
-				fetchCoverArt(coverUrl),
-				new Promise<null>((resolve) => setTimeout(() => resolve(null), 1200)),
-			]);
-			if (path) coverArtPath = path;
-		}
+		// miss, await the bounded fetch (covers fetch in ~300ms typically) —
+		// past the 1.2s cap, play bare and let the fetch warm the cache.
+		const coverArtPath = await resolveCoverArt(
+			feed?.podcast.coverUrl ?? episode.imageUrl,
+			"bounded",
+		);

 		// Resume from saved progress if available and not completed
 		const savedProgress = progressStore.get(episode.id);
@@ -436,8 +458,10 @@ async function load(episode: Episode): Promise<void> {
 		// on feeds/progress at boot, so the bounded fetch (~300ms typical,
 		// 8s worst case) is free. Falls back to the episode's own image when
 		// the feed has no channel cover.
-		const coverUrl = feed?.podcast.coverUrl ?? episode.imageUrl;
-		const coverArtPath = coverUrl ? await fetchCoverArt(coverUrl) : null;
+		const coverArtPath = await resolveCoverArt(
+			feed?.podcast.coverUrl ?? episode.imageUrl,
+			"await",
+		);
 		const backendSnap = backend;
 		backendSnap
 			.preload(url, {
@@ -612,8 +636,10 @@ async function switchBackend(name: BackendName): Promise<void> {
 			const podcastTitle = feed?.customName || feed?.podcast.title || "";
 			const url =
 				useDownloadStore().getDownloadedFilePath(ep.id) ?? ep.audioUrl;
-			const coverUrl = feed?.podcast.coverUrl ?? ep.imageUrl;
-			const coverArtPath = coverUrl ? cachedCoverPath(coverUrl) : null;
+			const coverArtPath = await resolveCoverArt(
+				feed?.podcast.coverUrl ?? ep.imageUrl,
+				"cache",
+			);
 			await backend.play(url, {
 				startPosition: pos,
 				volume: vol,
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -42,7 +42,6 @@ if (cliArgs.version) {

 // ── CLI handlers ──────────────────────────────────────────────────────

-/** Find the most recent episode across all feeds */
 function findLatestEpisode(
 	feeds: Feed[],
 ): { feed: Feed; episode: Episode } | null {
--- a/src/pages/Feed/FeedPage.tsx
+++ b/src/pages/Feed/FeedPage.tsx
@@ -22,7 +22,6 @@ import { useDownloadStore } from "@/stores/download";
 import { useAppStore } from "@/stores/app";
 import { prefetchCoverArt } from "@/utils/cover-art";
 import { DownloadStatus } from "@/types/episode";
-import { format } from "date-fns";
 import { useTheme } from "@/context/ThemeContext";
 import { useAudioNavStore, AudioSource } from "@/stores/audio-nav";
 import {
@@ -33,14 +32,19 @@ import {
 } from "@/context/NavigationContext";
 import { useAudio } from "@/hooks/useAudio";
 import { on, off } from "@/utils/event-bus";
-import { NF_ICONS, supportsNerdFonts } from "@/utils/nerd-fonts";
+import { supportsNerdFonts } from "@/utils/nerd-fonts";
 import type { KeybindActionName } from "@/context/KeybindContext";
 import type { Episode } from "@/types/episode";
 import type { Feed } from "@/types/feed";
+import {
+	EpisodeRow,
+	FetchMoreRow,
+	EpisodePreview,
+	FetchMorePreview,
+} from "@/components/EpisodeList";
 import { LoadingIndicator } from "@/components/LoadingIndicator";
 import { PaneRow } from "@/components/PaneRow";
 import { TabListPane } from "@/components/TabPanel";
-import { useScrollIntoView } from "@/hooks/useScrollIntoView";
 import { useSelectionMarker } from "@/hooks/useSelectionMarker";

 export const FeedPaneCount = 1;
@@ -87,7 +91,6 @@ function FeedPage() {
 	const app = useAppStore();
 	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);
 	const focus = () => nav.depthFocus(0);
 	const focusedRow = () =>
@@ -103,7 +106,6 @@ function FeedPage() {
 	const focusedItem = (): EpItem | undefined =>
 		focusedOnMore() ? undefined : episodes()[focusedEpIdx()];
 	const curLen = () => rowCount();
-	const moreRef = useScrollIntoView(() => focusedOnMore());

 	const ensureFocus = () => {
 		if (rowCount() > 0 && focus() >= rowCount())
@@ -129,12 +131,6 @@ function FeedPage() {
 	});

 	// ── helpers ────────────────────────────────────────────────────────────────
-	const formatDate = (d: Date) => format(d, "MMM d, yyyy");
-	const formatDuration = (s: number) => {
-		const mins = Math.floor(s / 60);
-		const hrs = Math.floor(mins / 60);
-		return hrs > 0 ? `${hrs}h ${mins % 60}m` : `${mins}m`;
-	};
 	const downloadLabel = (id: string) => {
 		switch (downloadStore.getDownloadStatus(id)) {
 			case DownloadStatus.QUEUED:
@@ -229,19 +225,6 @@ function FeedPage() {

 	// ── render ──────────────────────────────────────────────────────────────────
 	const isActive = () => nav.activePane() === DEPTH_CENTER_PANE;
-	// Row highlight within the list. `active=true` only for the current pane.
-	const focusBg = (i: number, listFocus: number, active: boolean) =>
-		i === listFocus && active
-			? theme.primary
-			: i === listFocus
-				? theme.border
-				: undefined;
-	const focusFg = (i: number, listFocus: number, active: boolean) =>
-		i === listFocus && active
-			? theme.surface
-			: i === listFocus
-				? theme.selectedListItemText ?? theme.text
-				: theme.text;

 	const currentLabel = () => `Feed · ${episodes().length}`;

@@ -268,108 +251,38 @@ function FeedPage() {
 			}
 		>
 			<For each={episodes()}>
-				{(item, index) => {
-					const fi = () => focusedEpIdx();
-					const ref = useScrollIntoView(() => index() === fi());
-					return (
-						<box
-							ref={ref}
-							flexDirection="column"
-							gap={0}
-							paddingRight={1}
-							backgroundColor={focusBg(index(), fi(), isActive())}
-							onMouseDown={() => {
-								nav.setActivePane(DEPTH_CENTER_PANE);
-								nav.setDepthFocus(index(), 0);
-							}}
-						>
-							<box flexDirection="row" gap={1}>
-								<text
-									flexShrink={0}
-									fg={focusFg(index(), fi(), isActive())}
-								>
-									{index() === fi() ? marker() : " "}
-								</text>
-								<text
-									wrapMode="none"
-									truncate
-									fg={focusFg(index(), fi(), isActive())}
-								>
-									{item.episode.episodeNumber
-										? `#${item.episode.episodeNumber} `
-										: ""}
-									{item.episode.title}
-								</text>
-							</box>
-							{/* podcast name on its own row — readable at a glance; the
-							    50% current pane fits it in full for typical names, and
-							    truncate keeps the row one line tall either way */}
-							<box paddingLeft={2}>
-								<text
-									wrapMode="none"
-									truncate
-									fg={index() === fi() ? theme.surface : theme.textSecondary}
-								>
-									{item.feed.customName || item.feed.podcast.title}
-								</text>
-							</box>
-							<box flexDirection="row" gap={2} paddingLeft={2}>
-								<text
-									flexShrink={0}
-									fg={index() === fi() ? theme.surface : theme.info}
-								>
-									{formatDate(item.episode.pubDate)}
-								</text>
-								<text
-									flexShrink={0}
-									fg={index() === fi() ? theme.surface : muted()}
-								>
-									{formatDuration(item.episode.duration)}
-								</text>
-								<Show when={nav.isSelected(item.episode.id)}>
-									<text flexShrink={0} fg={theme.warning}>
-										●
-									</text>
-								</Show>
-								<Show when={downloadLabel(item.episode.id)}>
-									<text flexShrink={0} fg={downloadColor(item.episode.id)}>
-										{downloadLabel(item.episode.id)}
-									</text>
-								</Show>
-							</box>
-						</box>
-					);
-				}}
+				{(item, index) => (
+					<EpisodeRow
+						episode={item.episode}
+						subtitle={() => item.feed.customName || item.feed.podcast.title}
+						index={index}
+						focused={focusedEpIdx}
+						active={isActive}
+						selected={() => nav.isSelected(item.episode.id)}
+						downloadLabel={() => downloadLabel(item.episode.id)}
+						downloadColor={() => downloadColor(item.episode.id)}
+						marker={marker}
+						onMouseDown={() => {
+							nav.setActivePane(DEPTH_CENTER_PANE);
+							nav.setDepthFocus(index(), 0);
+						}}
+					/>
+				)}
 			</For>
 			<Show when={showFetchMore()}>
-				<box
-					ref={moreRef}
-					flexDirection="row"
-					gap={1}
-					paddingRight={1}
-					backgroundColor={focusBg(episodes().length, focusedRow(), isActive())}
+				<FetchMoreRow
+					index={() => episodes().length}
+					focused={focusedRow}
+					onMore={focusedOnMore}
+					active={isActive}
+					isLoadingMore={() => feedStore.isLoadingMore()}
+					nerd={nerd}
+					marker={marker}
 					onMouseDown={() => {
 						nav.setActivePane(DEPTH_CENTER_PANE);
 						nav.setDepthFocus(episodes().length, 0);
 					}}
-				>
-					<text fg={focusFg(episodes().length, focusedRow(), isActive())}>
-						{focusedOnMore() ? marker() : " "}
-					</text>
-					{nerd && (
-						<text fg={focusFg(episodes().length, focusedRow(), isActive())}>
-							{NF_ICONS.more}
-						</text>
-					)}
-					<Show
-						when={!feedStore.isLoadingMore()}
-						fallback={<LoadingIndicator label="Fetching…" />}
-					>
-						<text fg={focusFg(episodes().length, focusedRow(), isActive())}>
-							[Fetch More]
-						</text>
-					</Show>
-				</box>
+				/>
 			</Show>
 			<Show when={feedStore.isLoadingFeeds()}>
 				<box alignItems="center" paddingTop={1}>
@@ -380,23 +293,23 @@ function FeedPage() {
 	);

 	// ── preview pane: hovered-episode detail (or the Fetch More row) ──────────
+	const episodeHint = (item: EpItem) =>
+		`enter: play · d: download${
+			downloadStore.getDownloadStatus(item.episode.id) !== DownloadStatus.NONE
+				? " · D: delete"
+				: ""
+		} · space: select · h back`;
+
 	const previewContent = () => (
 		<>
 			<Show when={focusedOnMore()}>
-				<box flexDirection="column" gap={1} padding={1}>
-					<text fg={theme.textPrimary ?? theme.text}>
-						<strong>[Fetch More]</strong>
-					</text>
-					<text fg={muted()}>
-						{feedStore.isLoadingMore()
-							? "Loading the next batch of episodes…"
-							: fetchMoreMode() === "auto"
-								? "Auto mode: the next batch loads automatically at the bottom of the list."
-								: "Load the next batch of older episodes across all feeds (Enter)."}
-					</text>
-					<box height={1} />
-					<text fg={muted()}>enter: load more · h back</text>
-				</box>
+				<FetchMorePreview
+					isLoadingMore={() => feedStore.isLoadingMore()}
+					fetchMoreMode={fetchMoreMode}
+					manualText={() =>
+						"Load the next batch of older episodes across all feeds (Enter)."
+					}
+				/>
 			</Show>
 			<Show when={!focusedOnMore()}>
 				<Show
@@ -408,46 +321,16 @@ function FeedPage() {
 					}
 				>
 					{(item) => (
-						<box flexDirection="column" gap={1} padding={1}>
-							<text fg={theme.textPrimary ?? theme.text}>
-								<strong>
-									{item().episode.episodeNumber
-										? `#${item().episode.episodeNumber} `
-										: ""}
-									{item().episode.title}
-								</strong>
-							</text>
-							<box flexDirection="row" gap={2}>
-								<text fg={theme.info}>{formatDate(item().episode.pubDate)}</text>
-								<text fg={muted()}>{formatDuration(item().episode.duration)}</text>
-								<Show when={downloadLabel(item().episode.id)}>
-									<text fg={downloadColor(item().episode.id)}>
-										{downloadLabel(item().episode.id)}
-									</text>
-								</Show>
-							</box>
-							<text fg={muted()}>
-								{item().feed.customName || item().feed.podcast.title}
-							</text>
-							<Show when={item().feed.podcast.author}>
-								<text fg={muted()}>by {item().feed.podcast.author}</text>
-							</Show>
-							<box height={1} />
-							<text fg={theme.textSecondary}>
-								{item().episode.description?.slice(0, 400) ??
-									"No description available."}
-								{(item().episode.description?.length ?? 0) > 400 ? "…" : ""}
-							</text>
-							<box height={1} />
-							<text fg={muted()}>
-								enter: play · d: download
-								{downloadStore.getDownloadStatus(item().episode.id) !==
-								DownloadStatus.NONE
-									? " · D: delete"
-									: ""}{" "}
-								· space: select · h back
-							</text>
-						</box>
+						<EpisodePreview
+							episode={() => item().episode}
+							subtitle={() =>
+								item().feed.customName || item().feed.podcast.title
+							}
+							author={() => item().feed.podcast.author}
+							downloadLabel={() => downloadLabel(item().episode.id)}
+							downloadColor={() => downloadColor(item().episode.id)}
+							hint={() => episodeHint(item())}
+						/>
 					)}
 				</Show>
 			</Show>
--- a/src/pages/MyShows/MyShowsPage.tsx
+++ b/src/pages/MyShows/MyShowsPage.tsx
@@ -15,11 +15,11 @@
 */

 import { createMemo, createEffect, For, Show, onMount, onCleanup } from "solid-js";
+import type { RGBA } from "@opentui/core";
 import { useFeedStore } from "@/stores/feed";
 import { useDownloadStore } from "@/stores/download";
 import { useAppStore } from "@/stores/app";
 import { DownloadStatus } from "@/types/episode";
-import { format } from "date-fns";
 import { useTheme } from "@/context/ThemeContext";
 import { useAudioNavStore, AudioSource } from "@/stores/audio-nav";
 import {
@@ -31,16 +31,208 @@ import {
 } from "@/context/NavigationContext";
 import { useAudio } from "@/hooks/useAudio";
 import { on, off } from "@/utils/event-bus";
-import { NF_ICONS, supportsNerdFonts } from "@/utils/nerd-fonts";
+import { supportsNerdFonts } from "@/utils/nerd-fonts";
 import type { KeybindActionName } from "@/context/KeybindContext";
 import type { Episode, DownloadedEpisode } from "@/types/episode";
 import type { Feed } from "@/types/feed";
-import { LoadingIndicator } from "@/components/LoadingIndicator";
+import {
+	EpisodeRow,
+	FetchMoreRow,
+	EpisodePreview,
+	FetchMorePreview,
+	formatDate,
+} from "@/components/EpisodeList";
 import { PaneRow } from "@/components/PaneRow";
 import { TabListPane } from "@/components/TabPanel";
 import { useScrollIntoView } from "@/hooks/useScrollIntoView";
 import { useSelectionMarker } from "@/hooks/useSelectionMarker";

+// ── render components ────────────────────────────────────────────────────────
+// Depth-0 rows (subscribed shows, unsubscribed-show downloads) and their
+// preview panes are My Shows-specific; episode rows/previews are shared with
+// the Feed page (see EpisodeList.tsx).
+
+/** A subscribed-show row (depth 0). */
+function ShowRow(props: {
+	feed: Feed;
+	title: string;
+	index: () => number;
+	focused: () => number;
+	active: () => boolean;
+	marker: () => string;
+	wlScope: () => boolean;
+	wlInList: () => boolean;
+	onMouseDown: () => void;
+}) {
+	const { theme } = useTheme();
+	const muted = () => theme.muted || theme.text;
+	const ref = useScrollIntoView(() => props.index() === props.focused());
+	const isFocused = () => props.index() === props.focused();
+	const bg = () =>
+		isFocused() && props.active()
+			? theme.primary
+			: isFocused()
+				? theme.border
+				: undefined;
+	const fg = () =>
+		isFocused() && props.active()
+			? theme.surface
+			: isFocused()
+				? theme.selectedListItemText ?? theme.text
+				: theme.text;
+	return (
+		<box
+			ref={ref}
+			flexDirection="row"
+			gap={1}
+			paddingRight={1}
+			backgroundColor={bg()}
+			onMouseDown={props.onMouseDown}
+		>
+			<text fg={fg()}>{isFocused() ? props.marker() : " "}</text>
+			<text fg={fg()}>{props.title}</text>
+			<text fg={isFocused() ? theme.surface : muted()}>
+				({props.feed.episodes.length})
+			</text>
+			<Show when={props.wlScope()}>
+				<text
+					fg={
+						isFocused()
+							? theme.surface
+							: props.wlInList()
+								? theme.warning
+								: muted()
+					}
+				>
+					{props.wlInList() ? "●" : "○"}
+				</text>
+			</Show>
+		</box>
+	);
+}
+
+/** An unsubscribed-show download row (depth 0, below the shows list). */
+function UnsubscribedRow(props: {
+	d: DownloadedEpisode;
+	index: () => number;
+	focused: () => number;
+	active: () => boolean;
+	marker: () => string;
+	downloadLabel: () => string;
+	downloadColor: () => RGBA;
+	onMouseDown: () => void;
+}) {
+	const { theme } = useTheme();
+	const ref = useScrollIntoView(() => props.index() === props.focused());
+	const isFocused = () => props.index() === props.focused();
+	const bg = () =>
+		isFocused() && props.active()
+			? theme.primary
+			: isFocused()
+				? theme.border
+				: undefined;
+	const fg = () =>
+		isFocused() && props.active()
+			? theme.surface
+			: isFocused()
+				? theme.selectedListItemText ?? theme.text
+				: theme.text;
+	return (
+		<box
+			ref={ref}
+			flexDirection="column"
+			gap={0}
+			paddingRight={1}
+			backgroundColor={bg()}
+			onMouseDown={props.onMouseDown}
+		>
+			<box flexDirection="row" gap={1}>
+				<text flexShrink={0} fg={fg()}>
+					{isFocused() ? props.marker() : " "}
+				</text>
+				<text wrapMode="none" truncate fg={fg()}>
+					{props.d.episodeTitle ?? props.d.episodeId}
+				</text>
+				<Show when={props.downloadLabel()}>
+					<text flexShrink={0} fg={props.downloadColor()}>
+						{props.downloadLabel()}
+					</text>
+				</Show>
+			</box>
+			<box paddingLeft={2}>
+				<text
+					wrapMode="none"
+					truncate
+					fg={isFocused() ? theme.surface : theme.textSecondary}
+				>
+					{props.d.podcastTitle ?? props.d.feedId}
+				</text>
+			</box>
+		</box>
+	);
+}
+
+/** Depth-0 preview: the hovered subscribed show. */
+function ShowPreview(props: {
+	show: () => Feed;
+	title: () => string;
+	hint: () => string;
+}) {
+	const { theme } = useTheme();
+	const muted = () => theme.muted || theme.text;
+	const show = props.show;
+	return (
+		<box flexDirection="column" gap={1} padding={1}>
+			<text fg={theme.textPrimary ?? theme.text}>
+				<strong>{props.title()}</strong>
+			</text>
+			<Show when={show().podcast.author}>
+				<text fg={muted()}>by {show().podcast.author}</text>
+			</Show>
+			<text fg={theme.textSecondary}>{show().episodes.length} episodes</text>
+			<text fg={muted()}>
+				{show().podcast.description?.slice(0, 400) ?? "No description."}
+			</text>
+			<box height={1} />
+			<text fg={muted()}>{props.hint()}</text>
+		</box>
+	);
+}
+
+/** Depth-0 preview: the hovered unsubscribed-show download. */
+function UnsubscribedPreview(props: {
+	d: () => DownloadedEpisode;
+	downloadLabel: () => string;
+	downloadColor: () => RGBA;
+}) {
+	const { theme } = useTheme();
+	const muted = () => theme.muted || theme.text;
+	const d = props.d;
+	return (
+		<box flexDirection="column" gap={1} padding={1}>
+			<text fg={theme.textPrimary ?? theme.text}>
+				<strong>{d().episodeTitle ?? d().episodeId}</strong>
+			</text>
+			<text fg={theme.textSecondary}>{d().podcastTitle ?? d().feedId}</text>
+			<box flexDirection="row" gap={2}>
+				<Show when={d().pubDate}>
+					<text fg={theme.info}>{formatDate(new Date(d().pubDate!))}</text>
+				</Show>
+				<Show when={props.downloadLabel()}>
+					<text fg={props.downloadColor()}>
+						{props.downloadLabel()}
+					</text>
+				</Show>
+			</box>
+			<text fg={muted()}>
+				Downloaded from episode search — the show is not subscribed.
+			</text>
+			<box height={1} />
+			<text fg={muted()}>enter: play · D: delete download · h: back</text>
+		</box>
+	);
+}
+
 export const MyShowsPaneCount = 1;

 export function MyShowsPage() {
@@ -67,7 +259,6 @@ export function MyShowsPage() {
 	// entry drops out the moment the user subscribes to its show.
 	const unsubs = () => downloadStore.getUnsubscribedDownloads();

-	// Total depth-0 rows: subscribed shows + unsubscribed-show downloads.
 	const depth0Count = () => shows().length + unsubs().length;

 	const focusedShowIdx = () =>
@@ -107,7 +298,6 @@ export function MyShowsPage() {
 		depth() >= 1 &&
 		!!drilledShowId() &&
 		feedStore.hasMoreEpisodes(drilledShowId());
-	// Total navigable rows at depth 1: episodes + the optional Fetch More row.
 	const rowCount = () => episodes().length + (showFetchMore() ? 1 : 0);
 	const focusedRow = () =>
 		rowCount() === 0 ? 0 : Math.min(focus(1), rowCount() - 1);
@@ -121,7 +311,6 @@ export function MyShowsPage() {
 			: Math.min(focusedRow(), Math.max(episodes().length - 1, 0));
 	const focusedEpisode = () =>
 		focusedOnMore() ? undefined : episodes()[focusedEpIdx()];
-	const moreRef = useScrollIntoView(() => focusedOnMore());

 	const curLen = () => (depth() === 0 ? depth0Count() : rowCount());

@@ -155,12 +344,6 @@ export function MyShowsPage() {
 	});

 	// ── helpers ─────────────────────────────────────────────────────────────────
-	const formatDate = (d: Date) => format(d, "MMM d, yyyy");
-	const formatDuration = (s: number) => {
-		const mins = Math.floor(s / 60);
-		const hrs = Math.floor(mins / 60);
-		return hrs > 0 ? `${hrs}h ${mins % 60}m` : `${mins}m`;
-	};
 	const downloadLabel = (id: string) => {
 		switch (downloadStore.getDownloadStatus(id)) {
 			case DownloadStatus.QUEUED:
@@ -323,14 +506,6 @@ export function MyShowsPage() {

 	// ── render ──────────────────────────────────────────────────────────────────
 	const isActive = () => nav.activePane() === DEPTH_CENTER_PANE;
-	const focusBg = (i: number, lf: number, active: boolean) =>
-		i === lf && active ? theme.primary : i === lf ? theme.border : undefined;
-	const focusFg = (i: number, lf: number, active: boolean) =>
-		i === lf && active
-			? theme.surface
-			: i === lf
-				? theme.selectedListItemText ?? theme.text
-				: theme.text;
 	const showTitle = (f: Feed) => f.customName || f.podcast.title;

 	const currentLabel = () =>
@@ -349,18 +524,21 @@ export function MyShowsPage() {
 				{(feed, index) => {
 					const lf = () => nav.depthFocus(0);
 					const ref = useScrollIntoView(() => index() === lf());
+					const focused = () => index() === lf();
+					const fg = () =>
+						focused()
+							? theme.selectedListItemText ?? theme.text
+							: theme.text;
 					return (
 						<box
 							ref={ref}
 							flexDirection="row"
 							gap={1}
 							paddingRight={1}
-							backgroundColor={focusBg(index(), lf(), false)}
+							backgroundColor={focused() ? theme.border : undefined}
 						>
-							<text fg={focusFg(index(), lf(), false)}>
-								{index() === lf() ? marker() : " "}
-							</text>
-							<text fg={focusFg(index(), lf(), false)}>{showTitle(feed)}</text>
+							<text fg={fg()}>{focused() ? marker() : " "}</text>
+							<text fg={fg()}>{showTitle(feed)}</text>
 							<text fg={muted()}>({feed.episodes.length})</text>
 						</box>
 					);
@@ -385,51 +563,28 @@ export function MyShowsPage() {
 					}
 				>
 					<For each={shows()}>
-						{(feed, index) => {
-							const lf = () => focusedShowIdx();
-							const ref = useScrollIntoView(() => index() === lf());
-							const wlScope =
-								app.state().preferences.autoDownloadScope === "whitelist";
-							const wlInList = (
-								app.state().preferences.autoDownloadWhitelist ?? []
-							).includes(feed.id);
-							return (
-								<box
-									ref={ref}
-									flexDirection="row"
-									gap={1}
-									paddingRight={1}
-									backgroundColor={focusBg(index(), lf(), isActive())}
-									onMouseDown={() => {
-										nav.setActivePane(DEPTH_CENTER_PANE);
-										nav.setDepthFocus(index(), 0);
-									}}
-								>
-									<text fg={focusFg(index(), lf(), isActive())}>
-										{index() === lf() ? marker() : " "}
-									</text>
-									<text fg={focusFg(index(), lf(), isActive())}>
-										{showTitle(feed)}
-									</text>
-									<text fg={index() === lf() ? theme.surface : muted()}>
-										({feed.episodes.length})
-									</text>
-									<Show when={wlScope}>
-										<text
-											fg={
-												index() === lf()
-													? theme.surface
-													: wlInList
-														? theme.warning
-														: muted()
-											}
-										>
-											{wlInList ? "●" : "○"}
-										</text>
-									</Show>
-								</box>
-							);
-						}}
+						{(feed, index) => (
+							<ShowRow
+								feed={feed}
+								title={showTitle(feed)}
+								index={index}
+								focused={focusedShowIdx}
+								active={isActive}
+								marker={marker}
+								wlScope={() =>
+									app.state().preferences.autoDownloadScope === "whitelist"
+								}
+								wlInList={() =>
+									(app.state().preferences.autoDownloadWhitelist ?? []).includes(
+										feed.id,
+									)
+								}
+								onMouseDown={() => {
+									nav.setActivePane(DEPTH_CENTER_PANE);
+									nav.setDepthFocus(index(), 0);
+								}}
+							/>
+						)}
 					</For>
 					<Show when={unsubs().length > 0}>
 						<box paddingLeft={1} paddingTop={1}>
@@ -438,62 +593,21 @@ export function MyShowsPage() {
 							</text>
 						</box>
 						<For each={unsubs()}>
-							{(d, index) => {
-								// Rows continue after the shows list.
-								const rowIdx = () => shows().length + index();
-								const lf = () => nav.depthFocus(0);
-								const ref = useScrollIntoView(() => rowIdx() === lf());
-								return (
-									<box
-										ref={ref}
-										flexDirection="column"
-										gap={0}
-										paddingRight={1}
-										backgroundColor={focusBg(rowIdx(), lf(), isActive())}
-										onMouseDown={() => {
-											nav.setActivePane(DEPTH_CENTER_PANE);
-											nav.setDepthFocus(rowIdx(), 0);
-										}}
-									>
-										<box flexDirection="row" gap={1}>
-											<text
-												flexShrink={0}
-												fg={focusFg(rowIdx(), lf(), isActive())}
-											>
-												{rowIdx() === lf() ? marker() : " "}
-											</text>
-											<text
-												wrapMode="none"
-												truncate
-												fg={focusFg(rowIdx(), lf(), isActive())}
-											>
-												{d.episodeTitle ?? d.episodeId}
-											</text>
-											<Show when={downloadLabel(d.episodeId)}>
-												<text
-													flexShrink={0}
-													fg={downloadColor(d.episodeId)}
-												>
-													{downloadLabel(d.episodeId)}
-												</text>
-											</Show>
-										</box>
-										<box paddingLeft={2}>
-											<text
-												wrapMode="none"
-												truncate
-												fg={
-													rowIdx() === lf()
-														? theme.surface
-														: theme.textSecondary
-												}
-											>
-												{d.podcastTitle ?? d.feedId}
-											</text>
-										</box>
-									</box>
-								);
-							}}
+							{(d, index) => (
+								<UnsubscribedRow
+									d={d}
+									index={() => shows().length + index()}
+									focused={() => nav.depthFocus(0)}
+									active={isActive}
+									marker={marker}
+									downloadLabel={() => downloadLabel(d.episodeId)}
+									downloadColor={() => downloadColor(d.episodeId)}
+									onMouseDown={() => {
+										nav.setActivePane(DEPTH_CENTER_PANE);
+										nav.setDepthFocus(shows().length + index(), 0);
+									}}
+								/>
+							)}
 						</For>
 					</Show>
 				</Show>
@@ -509,98 +623,37 @@ export function MyShowsPage() {
 					}
 				>
 					<For each={episodes()}>
-						{(ep, index) => {
-							const lf = () => focusedEpIdx();
-							const ref = useScrollIntoView(() => index() === lf());
-							return (
-								<box
-									ref={ref}
-									flexDirection="column"
-									gap={0}
-									paddingRight={1}
-									backgroundColor={focusBg(index(), lf(), isActive())}
-									onMouseDown={() => {
-										nav.setActivePane(DEPTH_CENTER_PANE);
-										nav.setDepthFocus(index(), 1);
-									}}
-								>
-									<box flexDirection="row" gap={1}>
-										<text
-											flexShrink={0}
-											fg={focusFg(index(), lf(), isActive())}
-										>
-											{index() === lf() ? marker() : " "}
-										</text>
-										<text
-											wrapMode="none"
-											truncate
-											fg={focusFg(index(), lf(), isActive())}
-										>
-											{ep.episodeNumber ? `#${ep.episodeNumber} ` : ""}
-											{ep.title}
-										</text>
-									</box>
-									<box flexDirection="row" gap={2} paddingLeft={2}>
-										<text
-											flexShrink={0}
-											fg={index() === lf() ? theme.surface : theme.info}
-										>
-											{formatDate(ep.pubDate)}
-										</text>
-										<text
-											flexShrink={0}
-											fg={index() === lf() ? theme.surface : muted()}
-										>
-											{formatDuration(ep.duration)}
-										</text>
-										<Show when={nav.isSelected(ep.id)}>
-											<text flexShrink={0} fg={theme.warning}>
-												●
-											</text>
-										</Show>
-										<Show when={downloadLabel(ep.id)}>
-											<text flexShrink={0} fg={downloadColor(ep.id)}>
-												{downloadLabel(ep.id)}
-											</text>
-										</Show>
-									</box>
-								</box>
-							);
-						}}
+						{(ep, index) => (
+							<EpisodeRow
+								episode={ep}
+								index={index}
+								focused={focusedEpIdx}
+								active={isActive}
+								selected={() => nav.isSelected(ep.id)}
+								downloadLabel={() => downloadLabel(ep.id)}
+								downloadColor={() => downloadColor(ep.id)}
+								marker={marker}
+								onMouseDown={() => {
+									nav.setActivePane(DEPTH_CENTER_PANE);
+									nav.setDepthFocus(index(), 1);
+								}}
+							/>
+						)}
 					</For>
 					<Show when={showFetchMore()}>
-						<box
-							ref={moreRef}
-							flexDirection="row"
-							gap={1}
-							paddingRight={1}
-							backgroundColor={focusBg(
-								episodes().length,
-								focusedRow(),
-								isActive(),
-							)}
+						<FetchMoreRow
+							index={() => episodes().length}
+							focused={focusedRow}
+							onMore={focusedOnMore}
+							active={isActive}
+							isLoadingMore={() => feedStore.isLoadingMore()}
+							nerd={nerd}
+							marker={marker}
 							onMouseDown={() => {
 								nav.setActivePane(DEPTH_CENTER_PANE);
 								nav.setDepthFocus(episodes().length, 1);
 							}}
-						>
-							<text fg={focusFg(episodes().length, focusedRow(), isActive())}>
-								{focusedOnMore() ? marker() : " "}
-							</text>
-							{nerd && (
-								<text fg={focusFg(episodes().length, focusedRow(), isActive())}>
-									{NF_ICONS.more}
-								</text>
-							)}
-							<Show
-								when={!feedStore.isLoadingMore()}
-								fallback={<LoadingIndicator label="Fetching…" />}
-							>
-								<text fg={focusFg(episodes().length, focusedRow(), isActive())}>
-									[Fetch More]
-								</text>
-							</Show>
-						</box>
+						/>
 					</Show>
 				</Show>
 			</Show>
@@ -608,6 +661,30 @@ export function MyShowsPage() {
 	);

 	// ── preview pane ───────────────────────────────────────────────────────────
+	const episodeHint = (epId: string) =>
+		`enter: play · d: download${
+			downloadStore.getDownloadStatus(epId) !== DownloadStatus.NONE
+				? " · D: delete"
+				: ""
+		}${
+			app.state().preferences.autoDownloadScope === "whitelist"
+				? (app.state().preferences.autoDownloadWhitelist ?? []).includes(
+						drilledShowId(),
+					)
+					? " · w: un-whitelist"
+					: " · w: whitelist"
+				: ""
+		} · space: select · h: back`;
+
+	const showHint = (show: Feed) =>
+		`enter/l: open · h: back · x: unsubscribe${
+			app.state().preferences.autoDownloadScope === "whitelist"
+				? (app.state().preferences.autoDownloadWhitelist ?? []).includes(show.id)
+					? " · w: un-whitelist"
+					: " · w: whitelist"
+				: ""
+		}`;
+
 	const previewContent = () =>
 		depth() === 0 ? (
 			// depth 0 preview: hovered unsubscribed-show download, else the
@@ -624,86 +701,34 @@ export function MyShowsPage() {
 						}
 					>
 						{(show) => (
-							<box flexDirection="column" gap={1} padding={1}>
-								<text fg={theme.textPrimary ?? theme.text}>
-									<strong>{showTitle(show())}</strong>
-								</text>
-								<Show when={show().podcast.author}>
-									<text fg={muted()}>by {show().podcast.author}</text>
-								</Show>
-								<text fg={theme.textSecondary}>
-									{show().episodes.length} episodes
-								</text>
-								<text fg={muted()}>
-									{show().podcast.description?.slice(0, 400) ??
-										"No description."}
-								</text>
-								<box height={1} />
-								<text fg={muted()}>
-									enter/l: open · h: back · x: unsubscribe
-									{app.state().preferences.autoDownloadScope ===
-									"whitelist"
-										? (app.state().preferences.autoDownloadWhitelist ??
-											[]
-										  ).includes(show().id)
-											? " · w: un-whitelist"
-											: " · w: whitelist"
-										: ""}
-								</text>
-							</box>
+							<ShowPreview
+								show={() => show()}
+								title={() => showTitle(show())}
+								hint={() => showHint(show())}
+							/>
 						)}
 					</Show>
 				}
 			>
 				{(d) => (
-					<box flexDirection="column" gap={1} padding={1}>
-						<text fg={theme.textPrimary ?? theme.text}>
-							<strong>{d().episodeTitle ?? d().episodeId}</strong>
-						</text>
-						<text fg={theme.textSecondary}>
-							{d().podcastTitle ?? d().feedId}
-						</text>
-						<box flexDirection="row" gap={2}>
-							<Show when={d().pubDate}>
-								<text fg={theme.info}>
-									{formatDate(new Date(d().pubDate!))}
-								</text>
-							</Show>
-							<Show when={downloadLabel(d().episodeId)}>
-								<text fg={downloadColor(d().episodeId)}>
-									{downloadLabel(d().episodeId)}
-								</text>
-							</Show>
-						</box>
-						<text fg={muted()}>
-							Downloaded from episode search — the show is not
-							subscribed.
-						</text>
-						<box height={1} />
-						<text fg={muted()}>
-							enter: play · D: delete download · h: back
-						</text>
-					</box>
+					<UnsubscribedPreview
+						d={() => d()}
+						downloadLabel={() => downloadLabel(d().episodeId)}
+						downloadColor={() => downloadColor(d().episodeId)}
+					/>
 				)}
 			</Show>
 		) : (
 			// depth ≥1 preview: hovered episode (or the Fetch More row)
 			<>
 				<Show when={focusedOnMore()}>
-					<box flexDirection="column" gap={1} padding={1}>
-						<text fg={theme.textPrimary ?? theme.text}>
-							<strong>[Fetch More]</strong>
-						</text>
-						<text fg={muted()}>
-							{feedStore.isLoadingMore()
-								? "Loading the next batch of episodes…"
-								: fetchMoreMode() === "auto"
-									? "Auto mode: the next batch loads automatically at the bottom of the list."
-									: "Load the next batch of older episodes for this show (Enter)."}
-						</text>
-						<box height={1} />
-						<text fg={muted()}>enter: load more · h back</text>
-					</box>
+					<FetchMorePreview
+						isLoadingMore={() => feedStore.isLoadingMore()}
+						fetchMoreMode={fetchMoreMode}
+						manualText={() =>
+							"Load the next batch of older episodes for this show (Enter)."
+						}
+					/>
 				</Show>
 				<Show when={!focusedOnMore()}>
 					<Show
@@ -714,53 +739,19 @@ export function MyShowsPage() {
 							</box>
 						}
 					>
-				{(ep) => (
-					<box flexDirection="column" gap={1} padding={1}>
-						<text fg={theme.textPrimary ?? theme.text}>
-							<strong>
-								{ep().episodeNumber ? `#${ep().episodeNumber} ` : ""}
-								{ep().title}
-							</strong>
-						</text>
-						<box flexDirection="row" gap={2}>
-							<text fg={theme.info}>{formatDate(ep().pubDate)}</text>
-							<text fg={muted()}>{formatDuration(ep().duration)}</text>
-							<Show when={downloadLabel(ep().id)}>
-								<text fg={downloadColor(ep().id)}>
-									{downloadLabel(ep().id)}
-								</text>
-							</Show>
-						</box>
-						<Show when={selectedShow()?.podcast.author}>
-							<text fg={muted()}>by {selectedShow()!.podcast.author}</text>
-						</Show>
-						<box height={1} />
-						<text fg={theme.textSecondary}>
-							{ep().description?.slice(0, 400) ?? "No description available."}
-							{(ep().description?.length ?? 0) > 400 ? "…" : ""}
-						</text>
-						<box height={1} />
-						<text fg={muted()}>
-							enter: play · d: download
-							{downloadStore.getDownloadStatus(ep().id) !==
-							DownloadStatus.NONE
-								? " · D: delete"
-								: ""}
-							{app.state().preferences.autoDownloadScope === "whitelist"
-								? (app.state().preferences.autoDownloadWhitelist ?? []).includes(
-										drilledShowId(),
-									)
-									? " · w: un-whitelist"
-									: " · w: whitelist"
-								: ""}{" "}
-							· space: select · h: back
-						</text>
-					</box>
-				)}
+						{(ep) => (
+							<EpisodePreview
+								episode={() => ep()}
+								author={() => selectedShow()?.podcast.author}
+								downloadLabel={() => downloadLabel(ep().id)}
+								downloadColor={() => downloadColor(ep().id)}
+								hint={() => episodeHint(ep().id)}
+							/>
+						)}
+					</Show>
 				</Show>
-			</Show>
-		</>
-	);
+			</>
+		);

 	return (
 		<PaneRow
--- a/src/pages/Search/SearchPage.tsx
+++ b/src/pages/Search/SearchPage.tsx
@@ -77,30 +77,15 @@ function SearchPage() {
 	const submittedQuery = (): string => stack()[1]?.ctx ?? searchStore.query();

 	// ── input focusing ────────────────────────────────────────────────────────
-	// `inputFocused` is true while the query input is being typed in. The Shell
-	// router yields keys to the <input> while this is true; Escape (in Shell)
-	// sets it false so navigation resumes; `s` (search action) sets it true.
-	//
-	// The input's REAL focus is the source of truth for the flag:
-	// useInputFocusNav (the same hook the Settings forms use) flips
-	// `inputFocused` from the input's FOCUSED/BLURRED events, keeping the flag
-	// and the renderable in lockstep. That matters when the user clicks OFF the
-	// input: opentui's mouse dispatch auto-focuses the clicked target's nearest
-	// focusable ancestor (a pane scrollbox), blurring the input. The BLURRED
-	// event drops the flag, so the Shell router immediately resumes j/k/h
-	// instead of swallowing keys with no input to receive them — no more
-	// stuck "typing" state where Esc/j/k/s all do nothing.
-	//
-	// The depth stack still SEEDS the flag on transitions, since the query
-	// depth defaults to typing: re-entering depth 0 (h back from results, or a
-	// fresh mount) focuses the input; mounting at depth 1 (returning to the
-	// tab after a search) stays list-navigation — a stuck-on flag there would
-	// have the Shell yield j/k to a non-existent input. The depth STACK signal
-	// is also written by focus moves (setDepthFocus), so gate the seed on the
-	// depth VALUE via a memo: the effect must re-run only on an actual depth
-	// transition. Without the memo every j/k at the query depth re-focuses the
-	// input (undoing Escape), which keeps the recents list unreachable by
-	// keyboard.
+	// `inputFocused` tells the Shell router to yield keys to the query input.
+	// The input's REAL focus is the source of truth: useInputFocusNav flips
+	// the flag from the input's FOCUSED/BLURRED events, so clicking off the
+	// input drops it and the router resumes j/k/h — no stuck "typing" state.
+	// The depth stack only SEEDS it on transitions (re-entering depth 0
+	// focuses the input; mounting at depth 1 stays list-nav), gated on the
+	// depth VALUE via a memo because setDepthFocus also writes the stack
+	// signal — without the memo every j/k at query depth re-focuses the input
+	// and strands the recents list.
 	onMount(() => nav.setInputFocused(depth() === 0));
 	onCleanup(() => nav.setInputFocused(false));
 	const focusNavRef = useInputFocusNav();
--- a/src/pages/Settings/SettingsPage.tsx
+++ b/src/pages/Settings/SettingsPage.tsx
@@ -140,7 +140,6 @@ export function SettingsPage() {
 	function open() {
 		const d = depth();
 		if (d === 0) {
-			// drill into the focused section's items
 			const id = focusedSection().id;
 			nav.pushDepth({
 				kind: `settings:${id}`,
@@ -206,7 +205,6 @@ export function SettingsPage() {
 	function step(delta: number) {
 		const d = depth();
 		if (d === 2) {
-			// editor: j/k nudges the value
 			const it = editorItem();
 			if (it?.kind === "number" || it?.kind === "select")
 				it.cycle?.(delta as -1 | 1);
@@ -220,7 +218,6 @@ export function SettingsPage() {
 		pane: PaneId;
 		mode: NavMode;
 	}) => {
-		// ignore actions meant for non-center panes
 		if (data.pane !== DEPTH_CENTER_PANE) return;
 		if (nav.activePane() !== DEPTH_CENTER_PANE) return;
 		const handler = PAGE_ACTIONS[data.action];
--- a/src/stores/activity.ts
+++ b/src/stores/activity.ts
@@ -10,7 +10,6 @@

 import { createSignal } from "solid-js";

-/** Create activity store */
 function createActivityStore() {
 	const [count, setCount] = createSignal(0);
 	const [labels, setLabels] = createSignal<string[]>([]);
@@ -64,7 +63,6 @@ function createActivityStore() {
 	};
 }

-/** Singleton activity store */
 let activityStoreInstance: ReturnType<typeof createActivityStore> | null = null;

 export function useActivityStore() {
--- a/src/stores/audio-nav.ts
+++ b/src/stores/audio-nav.ts
@@ -9,14 +9,12 @@ import {
 	saveAudioNavToFile,
 } from "../utils/app-persistence";

-/** Source type for audio navigation */
 export enum AudioSource {
 	FEED = "feed",
 	MY_SHOWS = "my_shows",
 	SEARCH = "search",
 }

-/** Audio navigation state */
 export interface AudioNavState {
 	/** Current source type */
 	source: AudioSource;
@@ -28,14 +26,12 @@ export interface AudioNavState {
 	lastUpdated: Date;
 }

-/** Default navigation state */
 const defaultNavState: AudioNavState = {
 	source: AudioSource.FEED,
 	currentIndex: 0,
 	lastUpdated: new Date(),
 };

-/** Create audio navigation store */
 function createAudioNavStore() {
 	const [navState, setNavState] = createSignal<AudioNavState>(defaultNavState);

@@ -56,12 +52,10 @@ function createAudioNavStore() {
 	init();

 	return {
-		/** Get current navigation state */
 		get state(): AudioNavState {
 			return navState();
 		},

-		/** Update source type */
 		setSource: (source: AudioSource, podcastId?: string) => {
 			setNavState((prev) => ({
 				...prev,
@@ -72,7 +66,6 @@ function createAudioNavStore() {
 			persist();
 		},

-		/** Move to next episode */
 		next: (currentIndex: number) => {
 			setNavState((prev) => ({
 				...prev,
@@ -82,7 +75,6 @@ function createAudioNavStore() {
 			persist();
 		},

-		/** Move to previous episode */
 		prev: (currentIndex: number) => {
 			setNavState((prev) => ({
 				...prev,
@@ -92,23 +84,19 @@ function createAudioNavStore() {
 			persist();
 		},

-		/** Reset to default state */
 		reset: () => {
 			setNavState(defaultNavState);
 			persist();
 		},

-		/** Get current index */
 		getCurrentIndex: (): number => {
 			return navState().currentIndex;
 		},

-		/** Get current source */
 		getSource: (): AudioSource => {
 			return navState().source;
 		},

-		/** Get current podcast ID */
 		getPodcastId: (): string | undefined => {
 			return navState().podcastId;
 		},
--- a/src/stores/discover.ts
+++ b/src/stores/discover.ts
@@ -85,7 +85,6 @@ function syncSubscriptionState(
 	}));
 }

-/** Create discover store */
 export function createDiscoverStore() {
 	const [selectedCategory, setSelectedCategory] = createSignal<string>("all");
 	const [isLoading, setIsLoading] = createSignal(false);
@@ -107,7 +106,6 @@ export function createDiscoverStore() {
 	const refresh = async () => {
 		setIsLoading(true);
 		try {
-			// Skip if cache is still fresh
 			const now = Date.now();
 			if (now - cachedAt < FEATURED_CACHE_TTL_MS) {
 				syncSubscriptions();
@@ -131,7 +129,6 @@ export function createDiscoverStore() {
 			cachedAt = now;
 			setPodcasts(fetched);

-			// Reflect current feed-store subscriptions
 			syncSubscriptions();
 		} catch {
 			// Network failure — keep whatever we have (stale or empty)
@@ -140,7 +137,6 @@ export function createDiscoverStore() {
 		}
 	};

-	/** Get filtered podcasts by category */
 	const filteredPodcasts = () => {
 		const category = selectedCategory();
 		if (category === "all") {
@@ -155,7 +151,6 @@ export function createDiscoverStore() {
 		});
 	};

-	/** Subscribe to a podcast */
 	const subscribe = (podcastId: string) => {
 		const podcast = podcasts().find((p) => p.id === podcastId);
 		if (podcast) {
@@ -168,7 +163,6 @@ export function createDiscoverStore() {
 		);
 	};

-	/** Unsubscribe from a podcast */
 	const unsubscribe = (podcastId: string) => {
 		const podcast = podcasts().find((p) => p.id === podcastId);
 		if (podcast) {
@@ -180,7 +174,6 @@ export function createDiscoverStore() {
 		);
 	};

-	/** Toggle subscription */
 	const toggleSubscription = (podcastId: string) => {
 		const podcast = podcasts().find((p) => p.id === podcastId);
 		if (podcast?.isSubscribed) {
@@ -207,7 +200,6 @@ export function createDiscoverStore() {
 	};
 }

-/** Singleton discover store */
 let discoverStoreInstance: ReturnType<typeof createDiscoverStore> | null = null;

 export function useDiscoverStore() {
--- a/src/stores/download.ts
+++ b/src/stores/download.ts
@@ -63,7 +63,62 @@ interface QueueItem {
 	episodeTitle: string;
 }

-/** Create download store */
+// ── post-download decoration ─────────────────────────────────────────────────
+/** Write the podcast cover beside the audio so mpv's --cover-art-auto=exact
+ *  picks it up for Now Playing art when the local file plays (same basename,
+ *  .jpg extension — verified against mpv 0.41). curl, NOT fetch: Bun's fetch
+ *  hangs in compiled binaries, so the shipped app never wrote this file. */
+function writeCoverArt(filePath: string, coverUrl: string): void {
+	const dot = filePath.lastIndexOf(".");
+	if (dot <= 0) return;
+	const coverPath = filePath.slice(0, dot) + ".jpg";
+	Bun.spawn([
+		"curl",
+		"-sS",
+		"--fail",
+		"-m",
+		"8",
+		"--max-filesize",
+		"2097152",
+		"-o",
+		coverPath,
+		coverUrl,
+	])
+		.exited.catch(() => {});
+}
+
+/** Tag the local file (codec-copy, no re-encode) so mpv's Now Playing
+ *  metadata for local playback is title=episode, artist=podcast — the source
+ *  streams carry no usable tags and macOS composes "title - artist" from
+ *  exactly these fields. Atomic: ffmpeg writes a temp file, then renames
+ *  into place. */
+function tagLocalFile(
+	filePath: string,
+	episode: Episode,
+	podcastTitle: string,
+): void {
+	const tmp = `${filePath}.tag.mp3`;
+	Bun.spawn([
+		"ffmpeg",
+		"-y",
+		"-i",
+		filePath,
+		"-c",
+		"copy",
+		"-metadata",
+		`title=${episode.title}`,
+		"-metadata",
+		`artist=${podcastTitle}`,
+		tmp,
+	])
+		.exited.then(async (code) => {
+			if (code !== 0) return;
+			const { renameSync } = await import("node:fs");
+			renameSync(tmp, filePath);
+		})
+		.catch(() => {});
+}
+
 function createDownloadStore() {
 	const [downloads, setDownloads] = createSignal<
 		Map<string, DownloadedEpisode>
@@ -195,7 +250,6 @@ function createDownloadStore() {
 		}
 	}

-	/** Execute a single download */
 	async function executeDownload(item: QueueItem): Promise<void> {
 		const controller = new AbortController();
 		abortControllers.set(item.episodeId, controller);
@@ -236,70 +290,23 @@ function createDownloadStore() {
 				error: null,
 			});

-			// Write the podcast cover beside the audio so mpv's
-			// --cover-art-auto=exact picks it up for Now Playing art when the
-			// local file plays (same basename, .jpg extension — verified
-			// against mpv 0.41). curl, NOT fetch: Bun's fetch hangs in
-			// compiled binaries, so the shipped app never wrote this file.
-			// Falls back to the episode's own image when the feed has no
-			// channel cover (URL-added feeds).
+			// Decorate the local file: cover art + ID3 tags (see the
+			// module-level helpers above) — the source streams carry neither.
+			// Cover falls back to the episode's own image when the feed has
+			// no channel cover (URL-added feeds).
 			const feedStore = useFeedStore();
 			const episode = feedStore.findEpisode(item.episodeId);
-			const coverUrl =
-				feedStore
-					.feeds()
-					.find((f) => f.id === item.feedId)?.podcast.coverUrl ??
-				episode?.imageUrl;
-			if (coverUrl && result.filePath) {
-				const dot = result.filePath.lastIndexOf(".");
-				if (dot > 0) {
-					const coverPath = result.filePath.slice(0, dot) + ".jpg";
-					Bun.spawn([
-						"curl",
-						"-sS",
-						"--fail",
-						"-m",
-						"8",
-						"--max-filesize",
-						"2097152",
-						"-o",
-						coverPath,
-						coverUrl,
-					])
-						.exited.catch(() => {});
-				}
+			const feed = feedStore.feeds().find((f) => f.id === item.feedId);
+			const coverUrl = feed?.podcast.coverUrl ?? episode?.imageUrl;
+			if (result.filePath && coverUrl) {
+				writeCoverArt(result.filePath, coverUrl);
 			}
-
-			// Tag the local file (codec-copy, no re-encode) so mpv's Now
-			// Playing metadata for local playback is title=episode,
-			// artist=podcast — the source streams carry no usable tags and
-			// macOS composes "title - artist" from exactly these fields.
-			// Atomic: ffmpeg writes a temp file, then renames into place.
 			if (result.filePath && episode) {
 				const podcastTitle =
-					feedStore.feeds().find((f) => f.id === item.feedId)?.podcast.title ??
+					feed?.podcast.title ??
 					downloads().get(item.episodeId)?.podcastTitle;
 				if (podcastTitle) {
-					const tmp = `${result.filePath}.tag.mp3`;
-					Bun.spawn([
-						"ffmpeg",
-						"-y",
-						"-i",
-						result.filePath,
-						"-c",
-						"copy",
-						"-metadata",
-						`title=${episode.title}`,
-						"-metadata",
-						`artist=${podcastTitle}`,
-						tmp,
-					])
-						.exited.then(async (code) => {
-							if (code !== 0) return;
-							const { renameSync } = await import("node:fs");
-							renameSync(tmp, result.filePath);
-						})
-						.catch(() => {});
+					tagLocalFile(result.filePath, episode, podcastTitle);
 				}
 			}
 		} else {
@@ -315,22 +322,18 @@ function createDownloadStore() {
 		processQueue();
 	}

-	/** Get download status for an episode */
 	const getDownloadStatus = (episodeId: string): DownloadStatus => {
 		return downloads().get(episodeId)?.status ?? DownloadStatus.NONE;
 	};

-	/** Get download progress for an episode (0-100) */
 	const getDownloadProgress = (episodeId: string): number => {
 		return downloads().get(episodeId)?.progress ?? 0;
 	};

-	/** Get full download info for an episode */
 	const getDownload = (episodeId: string): DownloadedEpisode | undefined => {
 		return downloads().get(episodeId);
 	};

-	/** Get the local file path for a completed download */
 	const getDownloadedFilePath = (episodeId: string): string | null => {
 		const dl = downloads().get(episodeId);
 		if (dl?.status === DownloadStatus.COMPLETED && dl.filePath) {
@@ -347,7 +350,6 @@ function createDownloadStore() {
 		podcastFeedUrl?: string;
 	}

-	/** Start downloading an episode */
 	const startDownload = (
 		episode: Episode,
 		feedId: string,
@@ -411,7 +413,6 @@ function createDownloadStore() {
 		});
 	};

-	/** Cancel a download */
 	const cancelDownload = (episodeId: string): void => {
 		// Abort active download
 		const controller = abortControllers.get(episodeId);
@@ -432,7 +433,6 @@ function createDownloadStore() {
 		saveDownloads().catch(() => {});
 	};

-	/** Remove a completed download (delete file and metadata) */
 	const removeDownload = async (episodeId: string): Promise<void> => {
 		const dl = downloads().get(episodeId);
 		if (dl?.filePath) {
@@ -478,7 +478,6 @@ function createDownloadStore() {
 		}
 	};

-	/** Get all downloads as an array */
 	const getAllDownloads = (): DownloadedEpisode[] => {
 		return Array.from(downloads().values());
 	};
@@ -501,12 +500,10 @@ function createDownloadStore() {
 		});
 	};

-	/** Get the current queue */
 	const getQueue = (): QueueItem[] => {
 		return queue();
 	};

-	/** Get count of active downloads */
 	const getActiveCount = (): number => {
 		return activeCount();
 	};
@@ -531,7 +528,6 @@ function createDownloadStore() {
 	};
 }

-/** Singleton download store */
 let downloadStoreInstance: ReturnType<typeof createDownloadStore> | null = null;

 export function useDownloadStore() {
--- a/src/stores/feed.ts
+++ b/src/stores/feed.ts
@@ -49,6 +49,16 @@ const DEFAULT_REFRESH_INTERVAL_MINUTES = 30;
 *  feeds) can't stall the renderer. */
 const PARSE_CHUNK_SIZE = 5;

+/** Hard ceiling on the in-memory full-parse cache per feed (newest first).
+ *  The cache exists so fetch-more can page deeper without a refetch; without
+ *  a ceiling a 5,000-episode archive pins tens of MB of Episode objects in
+ *  RAM for the whole session (the old cache held EVERY parsed episode of
+ *  every feed, contributing hundreds of MB for archive-heavy
+ *  subscriptions). 1000 covers any realistic show's entire history —
+ *  beyond it, hasMoreEpisodes flips false and the visible list is bounded
+ *  by the user's cache preference as usual. */
+const MAX_CACHED_EPISODES_PER_FEED = 1000;
+
 /** Yield to the event loop (task queue) so the renderer can paint between
 *  parse chunks. MessageChannel instead of setTimeout/setImmediate because
 *  bun:test fake timers trap those (feed-refresh/pagination tests run under
@@ -214,7 +224,6 @@ async function mapWithConcurrency<T, R>(
 	return results;
 }

-/** Create feed store */
 function createFeedStore() {
 	const [feeds, setFeeds] = createSignal<Feed[]>([]);
 	const [sources, setSources] = createSignal<PodcastSource[]>([
@@ -262,7 +271,6 @@ function createFeedStore() {
 		saveFeeds(feeds());
 	};

-	/** Get filtered and sorted feeds */
 	const getFilteredFeeds = (): Feed[] => {
 		let result = [...feeds()];
 		const f = filter();
@@ -320,7 +328,6 @@ function createFeedStore() {
 		return result;
 	};

-	/** Get episodes in reverse chronological order across all feeds */
 	const getAllEpisodesChronological = (): Array<{
 		episode: Episode;
 		feed: Feed;
@@ -341,7 +348,6 @@ function createFeedStore() {
 		return allEpisodes;
 	};

-	/** Sort episodes in reverse chronological order (newest first) */
 	const sortEpisodesReverseChronological = (episodes: Episode[]): Episode[] => {
 		return [...episodes].sort(
 			(a, b) => b.pubDate.getTime() - a.pubDate.getTime(),
@@ -384,8 +390,14 @@ function createFeedStore() {
 			if (feedId) {
 				// Cache the FULL parse — the bound is applied when reading,
 				// not when writing, so a preference change takes effect
-				// without a refetch.
-				fullEpisodeCache.set(feedId, allEpisodes);
+				// without a refetch. Capped at MAX_CACHED_EPISODES_PER_FEED
+				// so an archive-heavy feed can't pin its entire history in
+				// RAM for the session (the visible window below is bounded
+				// by the user's preference regardless).
+				fullEpisodeCache.set(
+					feedId,
+					allEpisodes.slice(0, MAX_CACHED_EPISODES_PER_FEED),
+				);
 			}

 			// Bound the visible window by the user's cache preference.
@@ -410,7 +422,6 @@ function createFeedStore() {
 		}
 	};

-	/** Check if a feed with this URL already exists */
 	const hasFeedByUrl = (feedUrl: string): boolean => {
 		return feeds().some((f) => f.podcast.feedUrl === feedUrl);
 	};
@@ -675,7 +686,6 @@ function createFeedStore() {
 	};
 	scheduleNextRefresh();

-	/** Remove a feed */
 	const removeFeed = (feedId: string) => {
 		fullEpisodeCache.delete(feedId);
 		episodeLoadCount.delete(feedId);
@@ -706,7 +716,6 @@ function createFeedStore() {
 		}
 	};

-	/** Update a feed */
 	const updateFeed = (feedId: string, updates: Partial<Feed>) => {
 		setFeeds((prev) => {
 			const updated = prev.map((f) =>
@@ -717,7 +726,6 @@ function createFeedStore() {
 		});
 	};

-	/** Toggle feed pinned status */
 	const togglePinned = (feedId: string) => {
 		setFeeds((prev) => {
 			const updated = prev.map((f) =>
@@ -728,7 +736,6 @@ function createFeedStore() {
 		});
 	};

-	/** Add a source */
 	const addSource = (source: Omit<PodcastSource, "id">) => {
 		const newSource: PodcastSource = {
 			...source,
@@ -742,7 +749,6 @@ function createFeedStore() {
 		return newSource;
 	};

-	/** Update a source */
 	const updateSource = (sourceId: string, updates: Partial<PodcastSource>) => {
 		setSources((prev) => {
 			const updated = prev.map((source) =>
@@ -753,7 +759,6 @@ function createFeedStore() {
 		});
 	};

-	/** Remove a source */
 	const removeSource = (sourceId: string) => {
 		// Don't remove default sources
 		if (DEFAULT_SOURCES.some((s) => s.id === sourceId)) return false;
@@ -766,7 +771,6 @@ function createFeedStore() {
 		return true;
 	};

-	/** Toggle source enabled status */
 	const toggleSource = (sourceId: string) => {
 		setSources((prev) => {
 			const updated = prev.map((s) =>
@@ -777,7 +781,6 @@ function createFeedStore() {
 		});
 	};

-	/** Get feed by ID */
 	const getFeed = (feedId: string): Feed | undefined => {
 		return feeds().find((f) => f.id === feedId);
 	};
@@ -792,7 +795,6 @@ function createFeedStore() {
 		return undefined;
 	};

-	/** Get selected feed */
 	const getSelectedFeed = (): Feed | undefined => {
 		const id = selectedFeedId();
 		return id ? getFeed(id) : undefined;
@@ -853,6 +855,9 @@ function createFeedStore() {
 			// is its own sync block).
 			await yieldToUI();
 			cached = sortEpisodesReverseChronological(cached);
+			// Same ceiling as fetchEpisodes: the cache (and the paging
+			// window below) never exceeds MAX_CACHED_EPISODES_PER_FEED.
+			cached = cached.slice(0, MAX_CACHED_EPISODES_PER_FEED);
 			fullEpisodeCache.set(feedId, cached);
 			// Set current load count to match what's already displayed
 			episodeLoadCount.set(feedId, feed.episodes.length);
@@ -900,7 +905,6 @@ function createFeedStore() {
 		}
 	};

-	/** True if any feed still has cached episodes beyond its loaded window. */
 	const hasMoreAcrossAll = (): boolean => {
 		return feeds().some((f) => hasMoreEpisodes(f.id));
 	};
@@ -920,7 +924,6 @@ function createFeedStore() {
 		}
 	};

-	/** Run the global auto-download pass (see runAutoDownload above). */
 	const runAutoDownloadNow = (): void => {
 		runAutoDownload();
 	};
@@ -969,7 +972,6 @@ function createFeedStore() {
 	};
 }

-/** Singleton feed store */
 let feedStoreInstance: ReturnType<typeof createFeedStore> | null = null;

 export function useFeedStore() {
--- a/src/stores/progress.ts
+++ b/src/stores/progress.ts
@@ -64,16 +64,10 @@ function createProgressStore() {
 		 */
 		whenReady: () => progressInit,

-		/**
-		 * Get progress for a specific episode.
-		 */
 		get(episodeId: string): Progress | undefined {
 			return progressMap()[episodeId];
 		},

-		/**
-		 * Get all progress entries.
-		 */
 		all(): Record<string, Progress> {
 			return progressMap();
 		},
@@ -102,18 +96,12 @@ function createProgressStore() {
 			persist();
 		},

-		/**
-		 * Check if an episode is completed.
-		 */
 		isCompleted(episodeId: string): boolean {
 			const p = progressMap()[episodeId];
 			if (!p || p.duration <= 0) return false;
 			return p.position / p.duration >= COMPLETION_THRESHOLD;
 		},

-		/**
-		 * Get progress percentage (0-100) for an episode.
-		 */
 		getPercent(episodeId: string): number {
 			const p = progressMap()[episodeId];
 			if (!p || p.duration <= 0) return 0;
@@ -151,9 +139,6 @@ function createProgressStore() {
 			persist();
 		},

-		/**
-		 * Clear all progress data.
-		 */
 		clear(): void {
 			setProgressMap({});
 			persist();
--- a/src/stores/search.ts
+++ b/src/stores/search.ts
@@ -60,7 +60,6 @@ function saveScope(scope: SearchScope): void {
 	}
 }

-/** Create search store */
 export function createSearchStore() {
 	const feedStore = useFeedStore();
 	const [query, setQuery] = createSignal("");
@@ -167,7 +166,6 @@ export function createSearchStore() {
 		}
 	};

-	/** Add query to history */
 	const addToHistory = (q: string) => {
 		setHistory((prev) => {
 			const updated = sanitizeHistory([q, ...prev]);
@@ -176,13 +174,11 @@ export function createSearchStore() {
 		});
 	};

-	/** Clear search history */
 	const clearHistory = () => {
 		setHistory([]);
 		saveSearchHistoryToFile([]);
 	};

-	/** Remove single history item */
 	const removeFromHistory = (q: string) => {
 		setHistory((prev) => {
 			const updated = prev.filter((h) => h !== q);
@@ -191,14 +187,12 @@ export function createSearchStore() {
 		});
 	};

-	/** Clear results */
 	const clearResults = () => {
 		setResults([]);
 		setQuery("");
 		setError(null);
 	};

-	/** Mark a podcast as subscribed in results */
 	const markSubscribed = (podcastId: string, feedUrl?: string) => {
 		setResults((prev) =>
 			prev.map((result) => {
@@ -262,7 +256,6 @@ export function createSearchStore() {
 	};
 }

-/** Singleton search store */
 let searchStoreInstance: ReturnType<typeof createSearchStore> | null = null;

 export function useSearchStore() {
--- a/src/ui/command.tsx
+++ b/src/ui/command.tsx
@@ -156,9 +156,6 @@ function init() {
 				setRegistrations((arr) => arr.filter((x) => x !== results));
 			});
 		},
-		/**
-		 * Get all visible options.
-		 */
 		get options() {
 			return visibleOptions();
 		},
@@ -195,9 +192,6 @@ export function CommandProvider(props: ParentProps) {
 	return <ctx.Provider value={value}>{props.children}</ctx.Provider>;
 }

-/**
- * Command palette dialog component.
- */
 function CommandDialog(props: {
 	options: CommandOption[];
 	suggestedOptions: CommandOption[];
--- a/src/ui/dialog.tsx
+++ b/src/ui/dialog.tsx
@@ -98,9 +98,6 @@ function init() {
  })

  return {
-    /**
-     * Clear all dialogs from the stack.
-     */
    clear() {
      for (const item of store.stack) {
        if (item.onClose) item.onClose()
@@ -113,9 +110,6 @@ function init() {
      emit("dialog.close", {})
    },

-    /**
-     * Replace all dialogs with a new one.
-     */
    replace(input: JSX.Element | (() => JSX.Element), onClose?: () => void) {
      if (store.stack.length === 0) {
        focus = renderer.currentFocusedRenderable
@@ -130,9 +124,6 @@ function init() {
      emit("dialog.open", { dialogId: "dialog" })
    },

-    /**
-     * Push a new dialog onto the stack.
-     */
    push(input: JSX.Element | (() => JSX.Element), onClose?: () => void) {
      if (store.stack.length === 0) {
        focus = renderer.currentFocusedRenderable
@@ -143,9 +134,6 @@ function init() {
      emit("dialog.open", { dialogId: "dialog" })
    },

-    /**
-     * Pop the top dialog from the stack.
-     */
    pop() {
      if (store.stack.length === 0) return
      const current = store.stack.at(-1)!
--- a/src/utils/app-persistence.ts
+++ b/src/utils/app-persistence.ts
@@ -62,7 +62,6 @@ const defaultState: AppState = {

 // ── App State (config.json) ─────────────────────────────────────────────────

-/** Load app state from config.json */
 export async function loadAppStateFromFile(): Promise<AppState> {
 	try {
 		const cfg = await loadConfig();
@@ -88,7 +87,6 @@ export async function loadAppStateFromFile(): Promise<AppState> {
 	}
 }

-/** Save app state to config.json */
 export function saveAppStateToFile(state: AppState): void {
 	updateConfig({
 		settings: state.settings,
@@ -109,7 +107,6 @@ interface ProgressEntry {
 	playbackSpeed?: number;
 }

-/** Load progress map from JSON file */
 export async function loadProgressFromFile(): Promise<
 	Record<string, ProgressEntry>
 > {
@@ -145,7 +142,6 @@ export function saveProgressToFile(data: Record<string, unknown>): void {

 const SEARCH_HISTORY_FILE = "search-history.json";

-/** Load search history from JSON file */
 export async function loadSearchHistoryFromFile(): Promise<string[]> {
 	try {
 		const file = Bun.file(getConfigFilePath(SEARCH_HISTORY_FILE));
@@ -159,7 +155,6 @@ export async function loadSearchHistoryFromFile(): Promise<string[]> {
 	}
 }

-/** Save search history to JSON file (overwrite, no backup) */
 export function saveSearchHistoryToFile(history: string[]): void {
 	(async () => {
 		try {
@@ -178,7 +173,6 @@ export function saveSearchHistoryToFile(history: string[]): void {

 const AUDIO_NAV_FILE = "audio-nav.json";

-/** Load audio navigation state from JSON file */
 export async function loadAudioNavFromFile<T>(): Promise<T | null> {
 	try {
 		const file = Bun.file(getConfigFilePath(AUDIO_NAV_FILE));
--- a/src/utils/audio-pcm-cache.ts
+++ b/src/utils/audio-pcm-cache.ts
@@ -23,9 +23,16 @@
 * pass over just that region) — earlier segments stay valid, mp3 decode of
 * the same file is deterministic so abutting segments agree.
 *
- * Memory: 22050 Hz mono s16 ≈ 44 KB/s ≈ 2.6 MB/min (~80 MB per 30 min),
- * freed on stop(). 22050 Hz covers Nyquist 11 kHz, above the default 10 kHz
- * high-cutoff of the visualizer's FFT config.
+ * Memory: 22050 Hz mono s16 ≈ 44 KB/s ≈ 2.6 MB/min. The cache is a
+ * SLIDING WINDOW around the playback position — the decode pass stops
+ * once it is maxAheadSec ahead of the cursor and segments entirely older
+ * than keepBehindSec behind it are dropped (both re-filled/restarted on
+ * demand). Steady state is bounded by (maxAheadSec + keepBehindSec) of
+ * audio (~40 MB at the defaults) INDEPENDENT of episode length; the old
+ * whole-episode cache grew ~160 MB per hour of audio and hit 2.5 GB on
+ * long-form episodes. Fully freed on stop(). 22050 Hz covers Nyquist
+ * 11 kHz, above the default 10 kHz high-cutoff of the visualizer's FFT
+ * config.
 *
 * Downloads via ffmpeg's own http stack with reconnect flags, matching the
 * old reader; local files skip them (ffmpeg rejects http-only options for
@@ -49,6 +56,24 @@ const INITIAL_CAPACITY_SAMPLES = 4 * 1024 * 1024;
 */
 const CLOSE_IN_PLACE_GAP_SEC = 15;

+/**
+ * Default decode-head budget: the ffmpeg pass pauses once it is this far
+ * ahead of the playback cursor. Bounds RAM (~26 MB of s16 at 22050 Hz) AND
+ * the network pull — the old cache decoded the whole episode at 4x, so a
+ * 3h show pinned ~500 MB (2.5 GB+ for long-form) and dragged the entire
+ * remote file even when only the first 10 minutes were listened to. At 4x
+ * pacing a refill costs ~150s of background decode, one ffmpeg spawn per
+ * ~10 min of playback.
+ */
+const DEFAULT_DECODE_AHEAD_SEC = 600;
+
+/**
+ * Default retention behind the cursor: decoded audio entirely older than
+ * this is dropped. Keeps pause/resume and small backward seeks instant
+ * without letting the window grow with playback time.
+ */
+const DEFAULT_KEEP_BEHIND_SEC = 300;
+
 /**
 * Monotonically increasing generation counter.
 * Each startDecode() increments this; the read loop checks it to know
@@ -73,6 +98,10 @@ export interface EpisodePcmCacheOptions {
 	url: string;
 	/** Sample rate (default: 22050) */
 	sampleRate?: number;
+	/** Decode-head budget in seconds ahead of the cursor (default: 600). */
+	maxAheadSec?: number;
+	/** Retention in seconds behind the cursor (default: 300). */
+	keepBehindSec?: number;
 }

 export class EpisodePcmCache {
@@ -84,10 +113,15 @@ export class EpisodePcmCache {
 	private activeSegment: Segment | null = null;
 	readonly url: string;
 	readonly sampleRate: number;
+	/** Sliding-window budgets (see maintainWindow). */
+	readonly maxAheadSec: number;
+	readonly keepBehindSec: number;

 	constructor(options: EpisodePcmCacheOptions) {
 		this.url = options.url;
 		this.sampleRate = options.sampleRate ?? PCM_SAMPLE_RATE;
+		this.maxAheadSec = options.maxAheadSec ?? DEFAULT_DECODE_AHEAD_SEC;
+		this.keepBehindSec = options.keepBehindSec ?? DEFAULT_KEEP_BEHIND_SEC;
 	}

 	/** Whether an ffmpeg decode pass is currently running. */
@@ -238,11 +272,20 @@ export class EpisodePcmCache {
 	 * new segment at `sec` (seek into a hole / resume past cached audio).
 	 */
 	ensureDecodeAround(sec: number): void {
+		// Enforce the sliding-window budget first (head cap, prune, refill)
+		// so a resume or seek never leaves stale segments behind the cursor.
+		this.maintainWindow(sec);
+
 		// Data already on hand: nothing needed here; only keep the tail
-		// filling if the decode is idle and the episode is unfinished.
+		// filling if the decode is idle, the episode is unfinished, AND the
+		// head is inside its budget. A head-capped cache ("we're maxAheadSec
+		// ahead, enough decoded") is NOT a stalled decode — restarting it
+		// here would fight maintainWindow's cap on every resume call.
 		if (this.covers(sec)) {
 			if (this._decoding || this.decodeFinished) return;
-			this.startDecode(this.coverageEndSec > sec ? this.coverageEndSec : sec);
+			const end = this.coverageEndSec;
+			if (end >= sec + this.maxAheadSec) return;
+			this.startDecode(end > sec ? end : sec);
 			return;
 		}

@@ -265,6 +308,48 @@ export class EpisodePcmCache {
 		this.startDecode(Math.max(0, sec));
 	}

+	/**
+	 * Sliding-window budget for the in-memory cache, driven by the live
+	 * playback position. Runs on every read (the render loop is the only
+	 * consumer that knows the cursor continuously) and on resume/seek:
+	 * - capHead: the decode pass pauses once it is maxAheadSec ahead of the
+	 *   cursor (pauseDecode keeps the decoded data — a plain startDecode
+	 *   from the frontier refills it later).
+	 * - prune: segments entirely keepBehindSec behind the cursor are
+	 *   dropped. A backward seek past the window restarts a segment there —
+	 *   the same mechanism as a seek into an undecoded hole, so no new
+	 *   failure mode.
+	 * - topUp: when the cursor has outrun the head, restart the tail decode
+	 *   from the frontier (one ffmpeg spawn per maxAheadSec of playback).
+	 * Together these bound memory to (maxAheadSec + keepBehindSec) of audio
+	 * regardless of episode length.
+	 */
+	private maintainWindow(atSec: number): void {
+		const pos = Math.max(0, atSec);
+
+		if (this._decoding && this.coverageEndSec >= pos + this.maxAheadSec) {
+			this.pauseDecode();
+		}
+
+		const keepFromSec = pos - this.keepBehindSec;
+		if (
+			this.segments.some(
+				(seg) => seg.baseSec + seg.written / this.sampleRate < keepFromSec,
+			)
+		) {
+			this.segments = this.segments.filter(
+				(seg) => seg.baseSec + seg.written / this.sampleRate >= keepFromSec,
+			);
+		}
+
+		if (!this._decoding && !this.decodeFinished) {
+			const end = this.coverageEndSec;
+			if (end < pos + this.maxAheadSec) {
+				this.startDecode(Math.max(end, pos));
+			}
+		}
+	}
+
 	/**
 	 * Read the PCM window ENDING at `atSec` of playback into `out`
 	 * (Int16 magnitudes widened to f64, the scale cavacore expects).
@@ -275,6 +360,7 @@ export class EpisodePcmCache {
 	 */
 	readWindow(out: Float64Array, atSec: number): number {
 		if (out.length === 0) return 0;
+		this.maintainWindow(atSec);
 		const endIdx = Math.round(atSec * this.sampleRate);
 		const startIdx = endIdx - out.length + 1;
 		for (const seg of this.segments) {
--- a/src/utils/cavacore.ts
+++ b/src/utils/cavacore.ts
@@ -52,7 +52,6 @@ const DEFAULTS: Required<CavaCoreConfig> = {
 	scalingMode: 0,
 };

-// eslint-disable-next-line @typescript-eslint/no-explicit-any
 type CavaLib = {
 	symbols: Record<string, (...args: any[]) => any>;
 	close(): void;
@@ -102,7 +101,6 @@ export class CavaCore {
 		this.lib = lib;
 	}

-	/** Number of frequency bars configured. */
 	get bars(): number {
 		return this._bars;
 	}
--- a/src/utils/event-bus.ts
+++ b/src/utils/event-bus.ts
@@ -43,7 +43,6 @@ function createEventBus(): EventBusInstance {
 			}
 			handlers.get(event)!.add(handler as EventHandler);

-			// Return unsubscribe function
 			return () => {
 				this.off(event, handler);
 			};
--- a/src/utils/feeds-persistence.ts
+++ b/src/utils/feeds-persistence.ts
@@ -134,7 +134,6 @@ export function saveFeedsToFile(feeds: Feed[], windowDays?: number): void {
 		}
 	})().catch(() => {});
 }
-/** Load sources from config.json */
 export async function loadSourcesFromFile<T>(): Promise<T[] | null> {
 	try {
 		const cfg = await loadConfig();
@@ -144,7 +143,6 @@ export async function loadSourcesFromFile<T>(): Promise<T[] | null> {
 		return null;
 	}
 }
-/** Save sources to config.json */
 export function saveSourcesToFile<T>(sources: T[]): void {
 	updateConfig({ sources: sources as unknown as PodcastSource[] });
 }
--- a/src/utils/jsonc.ts
+++ b/src/utils/jsonc.ts
@@ -5,9 +5,6 @@
 * and multi-line comments, which is useful for configuration files.
 */

-/**
- * Remove JSONC comments from a string
- */
 function stripComments(jsonString: string): string {
  const comments = [
    { pattern: /\/\/.*$/gm, replacement: "" },
@@ -23,9 +20,6 @@ function stripComments(jsonString: string): string {
  return result;
 }

-/**
- * Parse JSONC string into a JavaScript object
- */
 export function parseJSONC(jsonString: string): unknown {
  const stripped = stripComments(jsonString);
  return JSON.parse(stripped);
--- a/src/utils/keybinds-persistence.ts
+++ b/src/utils/keybinds-persistence.ts
@@ -95,7 +95,6 @@ export async function copyKeybindsIfNeeded(): Promise<void> {
 	}
 }

-/** Load keybinds from JSONC file */
 export async function loadKeybindsFromFile(): Promise<KeybindsResolved> {
 	try {
 		const filePath = getConfigFilePath(KEYBINDS_FILE);
--- a/src/utils/theme-observer.ts
+++ b/src/utils/theme-observer.ts
@@ -9,23 +9,14 @@

 import { emit } from "./event-bus"

-/**
- * Emit a theme reload event.
- */
 function emitThemeReload(): void {
  emit("theme.reload", {})
 }

-/**
- * Emit a theme changed event.
- */
 export function emitThemeChanged(theme: string, mode: "dark" | "light"): void {
  emit("theme.changed", { theme, mode })
 }

-/**
- * Emit a theme mode changed event.
- */
 export function emitThemeModeChanged(mode: "dark" | "light"): void {
  emit("theme.mode.changed", { mode })
 }
--- a/src/utils/theme.ts
+++ b/src/utils/theme.ts
@@ -1,28 +1,13 @@
 /**
- * Theme CSS Variable Manager
- * Handles dynamic theme switching by updating CSS custom properties
+ * Terminal Theme Resolver
+ * Resolves the active theme (built-in, custom, or system-derived) to colors.
 */

 import type { TerminalColors } from "@opentui/core";
 import type { ThemeJson } from "../types/theme-schema";
-import { THEME_JSON } from "../constants/themes";
-import { getCustomThemes } from "./custom-themes";
 import { resolveTheme as resolveThemeJson } from "./theme-resolver";
 import { generateSystemTheme } from "./system-theme";

-/**
- * Apply CSS variable data-theme attribute
- */
-export function setThemeAttribute(themeName: string) {
-  if (typeof document === "undefined") return;
-  const root = document.documentElement;
-  root.setAttribute("data-theme", themeName);
-}
-
-export async function loadThemes() {
-  return await getCustomThemes();
-}
-
 export function resolveTerminalTheme(
  themes: Record<string, ThemeJson>,
  name: string,
@@ -32,9 +17,5 @@ export function resolveTerminalTheme(
  if (name === "system" && system) {
    return resolveThemeJson(generateSystemTheme(system, mode), mode);
  }
-  const theme = themes[name] ?? themes.catppuccin;
-  if (!theme) {
-    return resolveThemeJson(THEME_JSON.catppuccin, mode);
-  }
-  return resolveThemeJson(theme, mode);
+  return resolveThemeJson(themes[name] ?? themes.catppuccin, mode);
 }