Address Wess/Jude review defects on the hidden-DM visibility/resurface path. Each is an in-scope correctness fix to the mechanism this PR builds; none change product intent or UI. The #6769 durable cross-process convergence invariant remains an intentional out-of-scope follow-up (bug #6316 stays open, tracked by #6769). A. Clock-skew fence (buzz-db/event.rs): received_at was assigned by the relay process clock (Utc::now()) while hide_dm's hidden_at uses the DB clock (NOW()), so the causal resurface fence compared two clocks. Insert now writes NOW() and RETURNs the value, sourcing both sides from the one database clock. Adds a PG-gated regression bracketing received_at between two DB NOW() reads. B. Mobile replay loop (dm_visibility.dart): the limit:1 snapshot replay could fire before subscribe() resolved, kicking refresh() -> version bump -> resubscribe -> identical replay, unbounded for any user with a stored snapshot. Dedup on snapshot event id (reset on relay/identity change and clear). Adds a regression. C. Huddle invites never resurfaced (buzz-core/kind.rs): KIND_HUDDLE_STARTED is rendered as visible content and treated as a notifiable DM invite but was absent from is_human_visible_message_kind, so it never resurfaced a hidden DM. Added to the trigger set; other huddle lifecycle kinds stay excluded. Test updated. D. Fail-open snapshot read (desktop fetch.rs, mobile channel_directory.dart): a transient kind:30622 read failure was treated as 'nothing hidden', re-exposing every hidden DM until the next good refresh. Now fails closed by propagating the error so the caller preserves the last rendered list. Adds a mobile regression. E. Desktop in-flight invalidation race (useMembershipNotifications.ts): direct channelsQueryKey invalidation could be silently undone by an in-flight get_channels, dropping the resurface signal. Routed through the idle-aware trailing debounce (refreshChannelsWhenIdle) as useLiveChannelUpdates does, with cleanup-time cancel(). Test updated plus an in-flight re-arm regression. Verified locally at this tree: cargo fmt --check, clippy (buzz-core, buzz-db), file-size-check; buzz-core kind tests, buzz-db event tests (incl. PG-gated), buzz-relay resurface integration tests; desktop node --test useMembershipNotifications; mobile flutter analyze + full channels_provider_test suite. All green. Co-authored-by: Mongo <9cfd347903944d5b85aa6c93d2ab67381b978a92a31914bca69998968752a1d7@buzz.block.builderlab.xyz> Signed-off-by: kenny lopez <klopez4212@gmail.com>
Buzz Mobile
Flutter mobile client for Buzz.
Setup
Use the Flutter SDK pinned by the repository. Activate Hermit from the repo root before resolving packages or running any Flutter command:
cd /path/to/buzz
. ./bin/activate-hermit
./bin/just mobile-install
mobile-build-android intentionally builds with --no-pub. If an IDE or an
external Flutter SDK has touched mobile/.dart_tool, rerun mobile-install
with the pinned SDK before building so flutter_test, sky_engine, and the
engine all come from the same Flutter version.
Run
# From repo root (applies a worktree-isolated debug identity and starts/reuses Simulator):
just mobile-dev
# Direct (uses the app's configured community; apply worktree overrides first):
cd mobile && flutter run
Worktree-aware debug identity
Debug builds produced from a git worktree get a unique app identifier keyed
to the worktree directory name (com.buzz.buzzMobile.<slug> on iOS,
xyz.block.buzz.mobile.<slug> on Android) plus a display-only branch label
in the app name (Buzz (my-branch), or a short SHA when the worktree is
detached). Because the identifier follows the directory rather than the
branch, one worktree keeps exactly one installed app — and its login state —
across branch switches, and builds from multiple worktrees install side by
side, mirroring the desktop dev experience. Release and profile builds
always keep the production identity and name.
just mobile-dev and just mobile-build-android apply this automatically by
running scripts/mobile-worktree-overrides.sh, which writes two gitignored
files:
mobile/ios/Flutter/WorktreeOverrides.xcconfig(included by Debug builds only; a developer'sAppOverrides.xcconfigis included after it, so app-specific overrides like a personalBUNDLE_IDENTIFIERfor device signing always win)mobile/android/worktree.properties(read by the debug build type only)
Android developers can keep a stable local test identity that takes precedence
over the generated worktree values by creating the gitignored
mobile/android/AppOverrides.properties:
appName=Buzz Pairing
applicationIdSuffix=.device_pairing_e2e1
These values are consumed by the debug build type only. The standard
just mobile-build-android command can still be used; regenerating
worktree.properties does not overwrite AppOverrides.properties. Release
and profile builds keep the production Buzz name and application ID.
For direct Xcode / Android Studio / flutter run development, run
./scripts/mobile-worktree-overrides.sh from the repo root once per branch
switch to refresh the display label (the install identity never changes);
the persisted files are then picked up by any subsequent build. In the main
checkout the script is a no-op that removes stale override files, restoring
the plain Buzz identity.
For an Android debug build that must remain installed alongside other Buzz worktree builds, set an explicit launcher name and package suffix when invoking the generator or a recipe that invokes it:
BUZZ_ANDROID_DEBUG_APP_NAME="Buzz Huddles" \
BUZZ_ANDROID_DEBUG_ID_SUFFIX=".huddles_829c" \
./bin/just mobile-build-android
This example produces the debug-only package
xyz.block.buzz.mobile.huddles_829c with the launcher label Buzz Huddles.
The suffix must start with a dot followed by a lowercase letter and may contain
only lowercase letters, digits, and underscores. Release and profile builds
ignore these overrides and retain the production package and name.
To remove leftover worktree-suffixed installs from booted iOS simulators and
connected Android emulators, run just mobile-clean (add --dry-run via
./scripts/mobile-worktree-clean.sh --dry-run to preview). Production
installs are never touched.
Checks
dart format --output=none --set-exit-if-changed .
flutter analyze
flutter test
Or from the repo root: just mobile-check and just mobile-test.
Android release signing
Android release builds fail unless all upload-key inputs are supplied through the environment:
BUZZ_ANDROID_UPLOAD_KEYSTORE_PATH: path to a CI-vended keystore fileBUZZ_ANDROID_UPLOAD_KEYSTORE_PASSWORDBUZZ_ANDROID_UPLOAD_KEY_ALIASBUZZ_ANDROID_UPLOAD_KEY_PASSWORD
The keystore path must be absolute, and the keystore must remain outside the repository. Development and debug builds do not require these variables.
Release pipelines that sign through the central APK Signer service instead of
a local upload keystore must set BUZZ_ANDROID_RELEASE_SIGNING=external. That
mode produces an unsigned release bundle and refuses to run if any
BUZZ_ANDROID_UPLOAD_* value is also set.
Architecture
lib/
├── main.dart # Entry point, Riverpod bootstrap
├── app.dart # MaterialApp with theme
├── shared/
│ └── theme/ # Catppuccin light/dark, spacing tokens, extensions
└── features/
└── home/ # Placeholder home surface
- State management: Riverpod + Hooks (
HookConsumerWidget) - Theme: Catppuccin Latte (light) / Macchiato (dark) — matches desktop
- Spacing:
Gridtokens for consistent spacing - Linting:
flutter_lints+riverpod_lintviacustom_lint - Feature isolation: No cross-feature imports except
shared/