NucleicandClaude Opus 4.8
07b6769410
Root cause (from on-device logs): the session was started from viewDidLoad while the pairing sheet was still presenting, so iOS interrupted it with reason 1 (videoDeviceNotAvailableInBackground) and it never ran (isRunning=false) — a black preview. The CMVideoFormatDescription -12710 errors were unrelated noise. Defer startRunning until the camera can actually run: configure the graph up front, then start only once the view is on screen and the app is foreground-active (viewDidAppear + a guarded startSessionIfReady). Recover on AVCaptureSessionInterruptionEnded / didBecomeActive / runtimeError. All start triggers funnel through the session queue and no-op if already running, so it's idempotent. Co-Authored-By: Claude Opus 4.8 <[email protected]>
NucleicRemote (iPhone client)
The thin iOS remote client for Nucleic (PLAN milestone M4). It's a pure projection of the
Mac host over LAN: monitor sessions, read transcripts/diffs, answer approvals, and send
follow-up input — scope approve. No local git or CLI; the Mac is the single authority
(see docs/UX_IOS.md and docs/SYNC_PROTOCOL.md).
Architecture
All wire/crypto logic is shared with the Mac via the NucleicProtocol SwiftPM library
(this Xcode project links it as a local package at ../..):
- Transport —
NWFrameChannel(NWConnection) +LANDiscovery(Bonjour_nucleic._tcp). - Engine —
NucleicProtocol.SyncClientruns the Noise handshake (XXpsk0 to pair, IK to reconnect), exchanges hello/welcome, and turnsHostMsgs into aSyncClient.Eventstream. - State —
RemoteStore(ObservableObject) is the single on-device UI state, a pure projection of the host. Identity + pinned host live inIdentityStore(Keychain + UserDefaults). - UI — SwiftUI:
SessionsView(attention-first list),SessionDetailView(transcript/diff + status-driven action area),ApprovalCardView(Face ID gate on high-risk),PairingScannerView(QR),SettingsView.
Build & run
# Resolves the local NucleicProtocol package automatically.
xcodebuild -project ios/NucleicRemote/NucleicRemote.xcodeproj \
-scheme NucleicRemote \
-destination 'platform=iOS Simulator,name=iPhone 17 Pro' build
Or open NucleicRemote.xcodeproj in Xcode and run. To pair, start the sync server on the Mac
(Nucleic ▸ Settings ▸ Add iPhone shows the QR), then scan it. On a real device, both must be
on the same Wi‑Fi.
Status
The full pair → list → subscribe → approve → reconnect path is implemented and the protocol/
server side is covered by tests in Tests/NucleicProtocolTests and Tests/NucleicCoreTests.
Push notifications / Live Activity (UX_IOS §5.1/§5.3) are the M5 follow-up (needs the relay).