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thePR0M3TH3ANandClaude Opus 4.8 cd556f9c1f feat(config): wire FEATURE_AUDIO_INGEST flag + lock audio-plan decisions

Adds the Audio/Music/Podcast feature flag to the instance config so a deployer
enables/disables it in one place like the other flags. Follows the exact
FEATURE_NIP71_INGEST wiring: export in config/instance-config.js → re-export in
js/config.js → DEFAULT_FLAGS + runtimeFlags snapshot + `export let` in
js/constants.js. Defaults FALSE ("off = no trace") — only an explicit `true`
lights it up; with it off nothing audio renders and the shipped audio guard keeps
audio-only notes out of the video feeds. No consumers yet (build only).

Also locks docs/audio-integration-plan.md decisions D1–D10 to the agreed
recommendations (status → DECISIONS LOCKED).

Verified: constants + config re-export FEATURE_AUDIO_INGEST === false by default.
Lint + build clean. docs/audio-integration-plan.md, TODO #60.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

2026-07-09 10:19:03 -04:00

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Audio / Music / Podcasts — Dev Plan

Status: DECISIONS LOCKED (D1–D10, per recommendations, 2026-07-09) — ready to build; config flag FEATURE_AUDIO_INGEST wired (default off). Sibling of the shorts (docs/shorts-plan.md) and live (docs/live-ingest-plan.md / docs/live-publish-plan.md) plans; shares the media-category model with both. Tracks TODO #60. The near-term "keep audio out of the video feed" guard is already shipped (see #60 / convertEventToVideo isAudioOnlyVideoObject).

Executive summary

bitvid is video-only: it supports NIP-71 video (kinds 21/22/34235/34236) and native kind 30078, and has no <audio> player. Podcasts/music published as native 30078 with imeta m audio/* currently render as a broken <video>, so they are now filtered out of the video feeds. This plan turns "filter them out" into "give them a proper home": an Audio category with its own player, sidebar tab, channel-profile tab, and "My Content" tab — built on a shared media-category resolver (video | audio | live | short) used everywhere so a note lands in exactly one bucket. Watch/ingest-first (mirrors live-ingest), flag-gated from day one (off = no trace), whitelist-scoped like shorts/live.

Landscape — audio kinds & NIPs (surveyed 2026-07-09, local NIP mirror)

Surface	Kind / tag	Notes	Support
Native re-upload (today)	30078 + `imeta m audio/*`	What Nostr Compass / Nodesignal use; bespoke, not a standard audio kind	pipeline exists
NIP-A0 Voice Messages	`kind 1222` (root), `1244` (reply)	Native short audio notes; URL to audio file, rec. `audio/mp4`/.m4a, ≤60s	❌
NIP-73 External Content IDs	`i`/`k` = `podcast:guid` / `podcast:item:guid` / `podcast:publisher:guid`	The Podcasting 2.0 / PodcastIndex / Fountain bridge — reference real feeds/episodes	❌
NIP-53 live audio	`kind 30311` (stream), `30312` (audio rooms/spaces)	Live audio; owned by #16, not this plan	❌ (#16)
NIP-71 audio variants	`imeta m audio/*` + `waveform`	Already in the spec bitvid parses (audio track on a video)	partial
Music apps (Wavlake, Stemstr)	app-specific custom kinds	Not ratified NIPs → opt-in integration only, not core	❌

Decisions needed

DECISION 1 — v1 source scope. ✅ LOCKED (= recommendation below). Which sources count as "audio" for the first release?

Option A — Native only: kind 30078 with imeta m audio/* (+ a native t:audio marker for new bitvid publishing). Lowest effort — reuses the whole existing 30078 pipeline; matches the data already in the wild.

Option B — A + NIP-A0 voice notes (kind 1222/1244). Adds a small, standardized native audio kind. Moderate.

Option C — A + B + NIP-73 podcast-feed ingest (pull real podcast RSS via PodcastIndex GUIDs). Full podcast client. Biggest — its own phase. Recommendation: A for v1, B fast-follow, C as a later phase (D7).

DECISION 2 — Discovery / whitelist scope. ✅ LOCKED (= recommendation below). Mirror shorts D1 / live D1: list audio only from whitelisted/trusted authors? Recommendation: Yes — same scope as video/shorts/live, one consistent trust model. (No separate audio allowlist.)

DECISION 3 — Does audio appear in the main feed, or Audio-tab only? ✅ LOCKED (= recommendation below).

Option A — Audio-tab only (excluded from main/discovery video feeds). Consistent with the shipped guard that already excludes audio from video feeds, and with shorts D3 (Shorts-tab only).

Option B — also mixed into the main feed with an audio card treatment. Recommendation: Option A — keeps the video feed clean; audio is a deliberate destination, not an interruption.

DECISION 4 — Player model. ✅ LOCKED: A for v1, architected toward B.

Option A — Reuse the player modal in "audio mode": detect audio → swap the <video> for an <audio> element + big poster art, reuse the existing zaps/comments/moderation/share chrome. Fastest; one modal.

Option B — Persistent mini audio player (bottom bar that keeps playing while you browse — the podcast/music norm). Best listening UX; larger build (global playback state, survives navigation). Recommendation: A for v1, B as the real target — audio's whole value is "keep listening while you browse," so plan the architecture so A can grow into B.

DECISION 5 — Category signal / resolver. ✅ LOCKED (= recommendation below). How is a note bucketed as audio (must be deterministic + shared)? Signals, in priority: (1) imeta m audio/* with no video variant, (2) kind 1222/1244 (if D1≥B), (3) podcast:* i tag (if D1=C), (4) native t:audio marker, (5) unambiguous audio URL extension (the shipped fallback). .ogg stays video unless imeta says audio. Also decide: adopt a t:audio marker (parallel to t:video) for bitvid's own audio publishing so the Audio feed has a clean relay-side #t filter? Recommendation: Yes.

DECISION 6 — Publish vs watch-only for v1. ✅ LOCKED (= recommendation below).

Option A — Watch/ingest-only (mirrors live-ingest): bitvid surfaces others' audio, no upload UI yet.

Option B — Publish too: upload an audio file → native 30078 with imeta m audio/* + t:audio (and/or NIP-A0 1222 for short voice notes). Recommendation: A for v1; split publish into its own plan/phase like live-ingest vs live-publish.

DECISION 7 — Podcast-feed interop (NIP-73). ✅ LOCKED: Yes, Phase 3. Should bitvid reference real Podcasting 2.0 feeds/episodes (link an audio note to its podcast:guid / podcast:item:guid, dedupe re-uploads, interop with Fountain / PodcastIndex)? Recommendation: Yes, but Phase 3 — high interop value, but pulls in RSS/GUID resolution; not v1.

DECISION 8 — One "Audio" category, or split Music vs Podcasts? ✅ LOCKED (= recommendation below). Recommendation: one Audio category for v1 (podcasts + music together); add a Music sub-filter later if Wavlake-style content appears. Splitting now needs a reliable music-vs-podcast signal we don't have.

DECISION 9 — Value-for-Value / zaps. ✅ LOCKED (= recommendation below). Podcasting 2.0 has streaming V4V (per-minute sats). bitvid has one-shot zaps. Recommendation: reuse the existing zap system for v1; per-minute streaming V4V is a future enhancement, not v1.

DECISION 10 — Config flag. ✅ LOCKED (= recommendation below). Name + granularity. Recommendation: FEATURE_AUDIO_INGEST (off = no trace), later FEATURE_AUDIO_PUBLISH; matches FEATURE_LIVE_INGEST / shorts pattern.

Config flags (off = no trace)

FEATURE_AUDIO_INGEST (default false) — gates the Audio sidebar tab, the channel/My Content Audio tabs, the audio player, and audio-category resolution. With it off, nothing audio renders and the shipped guard keeps audio out of the video feeds (current behavior).
FEATURE_AUDIO_PUBLISH (default false, later) — gates the upload-side audio content-type + native marker.

Field mapping — detecting an "audio" note (the shared resolver)

Add ONE resolveMediaCategory(video) → "video" | "audio" | "live" | "short" used by the sidebar feeds, the public channel tabs, AND the profile-modal "My Content" tabs (TODO #60). Audio branch reuses the already-shipped isAudioOnlyVideoObject(video) logic:

audio ⇐ no magnet AND no imeta m video/* AND ( imeta m audio/* OR audio kind 1222/1244 OR a podcast:* i tag OR t:audio OR an unambiguous audio URL .mp3/.m4a/.m4b/.f4a/.aac/.wav/.flac/.opus/.oga/.weba/.mka ). .ogg alone stays video.
short/live per shorts-plan / live-ingest-plan.
video otherwise (default).

Metadata an audio card wants (already present on the wild podcast notes): title, image/thumbnail (cover art), duration, summary/description, channel, show, podcast t tags. NIP-71 audio variants also carry waveform.

Architecture

Category resolver (js/nostr/… or js/services/…) — single source of truth (D5). Feed engine + channelProfile + MyVideosController all call it. This is the natural home for the #17 unified media grid.
Per-category lazy loaders — each tab (sidebar + channel + My Content) fetches only its category on select; no cross-contamination (audio guard already keeps audio out of video and vice-versa).
Audio player (D4) — v1: player modal detects category==="audio" → renders <audio> + poster + existing zap/comment/moderation chrome. Architect the playback/session layer so it can later hoist into a persistent mini-player (Option B) without rewriting the surfaces.
Channel profile + "My Content" — TODO #60 tab strips (Videos / Audio / Live / Shorts), empty categories hidden; "My Videos" pane renamed My Content.

Audio / podcast UX best practices

Keep playing while browsing — the defining audio behavior; the persistent mini-player (D4-B) is what makes bitvid usable as a podcast/music app.
Cover art forward — audio cards lead with image; no 16:9 letterboxing.
Duration + resume — show length; remember playback position per episode (ties into watch-history).
Speed + skip — 1x–2x rate, ±15/30s skip; background/lock-screen media session (navigator.mediaSession) so phones show cover art + transport controls.
Waveform (nice-to-have) when NIP-71 waveform is present.

Phases (each flag-gated from day one)

Phase 0 — Resolver + guard alignment. Ship resolveMediaCategory; refactor the shipped isAudioOnlyVideoObject to feed it. No UX. (Unblocks shorts/live too.)
Phase 1 — Audio tab + player (watch-only, D1=A). Sidebar Audio tab (whitelist- scoped), audio-mode player modal, native 30078 m audio/* + t:audio. The headline.
Phase 1.5 — Channel + My Content tabs (TODO #60). Category tab strips on the public channel and the renamed "My Content" pane.
Phase 2 — NIP-A0 voice notes (D1=B). Ingest 1222/1244; short-note card.
Phase 2.5 — Publish (FEATURE_AUDIO_PUBLISH, D6-B). Upload audio → native 30078 m audio/* + t:audio; optional NIP-A0 for short voice.
Phase 3 — Persistent mini-player (D4-B) + NIP-73 podcast-feed interop (D7): reference real feeds/episodes, dedupe re-uploads, PodcastIndex/Fountain interop.

Moderation, whitelist & NSFW

Inherit the existing model unchanged (same as shorts/live): whitelist scope (D2), web-of-trust mute/report blur, per-event blacklist, NSFW gate — all key off the author + event, not the media type. The account-level WoT override (#24) applies to audio creators too.

Risks / watch-items

Broken/foreign audio formats — some audio/* won't play cross-browser; the <audio> element degrades better than <video> but still probe/fallback.
Re-upload duplication — the same episode as a native 30078 AND (later) a NIP-73-referenced feed item → dedupe by podcast:item:guid once D7 lands.
Persistent player scope creep — global playback state touches routing/history; keep v1 to the modal, but don't design it in a way that blocks D4-B.
Empty tabs — whitelist-scoped audio may be sparse; hide empty categories.
Music licensing — surfacing Wavlake-style music is an integration, not core; keep it opt-in (D8).

Cross-refs & sources

TODO #60 (audio tab, channel/My Content tabs, resolver), #16 (live audio), #17 (unified media grid), #24 (WoT override).
Sibling plans: docs/shorts-plan.md, docs/live-ingest-plan.md, docs/live-publish-plan.md, docs/nip71-migration-plan.md.
Specs (local mirror docs/nips/): NIP-A0 (Voice Messages 1222/1244), NIP-73 (External Content IDs / podcast GUIDs), NIP-53 (Live 30311/30312), NIP-71 (video + audio variants), NIP-94/96 + Blossom (blob hosting — where the audio files live, e.g. relay.towardsliberty.com).

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