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).
tsconfig used jsx:"preserve"+jsxImportSource, which trips a TS 5.9
internal crash ("Expected sourceFile.imports[0] to be the synthesized JSX
runtime import") so tsc could never run clean. Switch to jsx:"react-jsx"
with the package's real jsx-runtime types, and fix the real errors that
surfaced:
- delete dead src/components/Navigation.tsx (imported ./Tab that doesn't
exist; the component has no importers)
- PlaybackControls: fix relative path to @/utils/audio-player
- SourceBadge: drop dead module-level typeColor (bare 'theme')
- command palette: bind to the real 'command' keybind (:) instead of the
never-defined 'command_list' action (palette was unreachable)
- yazi-pane-row test: destroy() must return Promise<void> as typed
Also fold in the package.json lint fix (bun tsc --noEmit) and doc polish.
