Three performance bottlenecks were causing slow list loading after NIP-07 login:
1. Each list service (blocks, subscriptions, hashtag preferences) maintained
its own isolated decryptionSuccessCache. When blocks decrypted with nip44_v2,
subscriptions and hashtag preferences had no way to know — they each had to
independently probe all schemes through the NIP-07 extension queue, tripling
the number of extension calls during the critical login path.
2. List loading was gated on both relaysReadyPromise AND permissionPromise in
the coordinator. Since the NIP-07 extension already grants decrypt permissions
during loginWithExtension(), the redundant pre-grant was adding 2-5 seconds
of unnecessary latency before any list fetching could begin.
3. The DECRYPT_RETRY_DELAY_MS was 10 seconds across all services. When a decrypt
attempt failed transiently (extension still initializing), the retry waited
far too long before trying again.
Changes:
- Create shared decryptionSchemeCache module used by all three list services
- Add fast-path: when shared cache knows the correct scheme, try ONLY that
scheme before falling back to parallel Promise.any() probe
- Remove permissionPromise from the list-loading gate in authSessionCoordinator
- Reduce DECRYPT_RETRY_DELAY_MS from 10s to 3s in all three services
- Clear shared cache on logout
https://claude.ai/code/session_013QrGMnxtMTsGTPqaP35jMj
Login with NIP-07 extensions was extremely slow because list loading
(blocks, subscriptions, hashtag preferences) happened sequentially and
each list's decryption tried encryption schemes one at a time.
Changes:
- Load blocks, subscriptions, and hashtags in parallel instead of
sequentially (blocks no longer blocks other lists from starting)
- Use Promise.any() to try all decryption schemes simultaneously
instead of trying nip44_v2 → nip44 → nip04 one-by-one
- Deduplicate same-family schemes (nip44/nip44_v2) to avoid redundant
extension calls
- Increase NIP-07 request queue concurrency from 3 to 5 to support
parallel decrypt operations during login
- Raise no-prompt decrypt timeout from 3s/5s to 8s since extensions
that have already granted permission still need time to decrypt
- Increase feed sync timeout from 8s to 12s to give lists more time
to settle before rendering unfiltered content
https://claude.ai/code/session_01V6m1gTecsppPrBHQnUyPnF
- Remove undefined hashtagPreferencesPromise reference in handleAuthLogin
that caused the feed sync Promise.allSettled to silently fail, preventing
proper list/profile synchronization before grid refresh
- Add missing getModerationSettings and getActiveProfilePubkey dependency
injection to authSessionCoordinator, fixing crashes during logout
moderation reset and profile switch pubkey resolution
- Parallelize NIP-07 permission request with relay readiness instead of
gating list loading behind it; parallelize subscriptions and hashtag
preference loading (independent of each other, only blocks must sequence)
- Add native run() alias to feedEngine so callers don't rely solely on
the applicationBootstrap compatibility shim
- Remove redundant refreshVisibleModerationUi call from renderVideoList
that re-decorated every video immediately after decoration
- Avoid re-normalizing moderation settings on every getActiveModerationThresholds
call when settings are already an object
https://claude.ai/code/session_01FCosieUXjEn95KtUeyGemY
Move cohesive method groups out of the monolithic Application class
(js/app.js, ~10K lines) into five coordinator modules under js/app/:
- feedCoordinator: feed registration, runtime building, refresh,
video loading, URL-health helpers, and feed telemetry
- playbackCoordinator: URL-first + magnet fallback pipeline, probing,
torrent status intervals, and video timestamp resolution
- authSessionCoordinator: signer lifecycle, profile switching,
relay/block/wallet management, and cleanup
- modalCoordinator: modal open/close, view-count subscriptions,
watch-history metadata, and playback logging
- moderationCoordinator: moderation settings, video decoration,
override/block/hide action routing
Each coordinator factory receives injected dependencies instead of
importing globals. Application retains thin delegator methods so all
public call-sites remain unchanged. Coordinator initialisation is
idempotent (via _initCoordinators) and supports both constructor-based
and Object.create()-based instantiation used by test harnesses.
All existing unit tests, lint checks, and syntax validation pass.
https://claude.ai/code/session_01C3PKJTCdavsGbk5jjC85EB
Claude