- A saved host now keeps every transport its pairing link carried: direct URL
plus the relay descriptor, with one token for both (the mobile connection
model). Switching tries the direct leg and falls back to the E2EE tunnel;
list probes report Connected · Relay when only the tunnel reaches the host;
relaunch restore picks direct first
- Host switching trusts the dropdown's fresh probe instead of re-probing on
click (no doubled latency, no transient Unreachable flashes); statuses are
written once with the final outcome, survive the dropdown closing via a
last-known cache, and an unprobed host reads Checking — never Unknown
- Open-in-new-window works for relay hosts: a new IPC command boots the local
UI with the host id injected and the renderer picks the transport; the app
render holds on the relay restore so the splash shows instead of a transient
auth screen (10s safety valve)
- Relay host control socket gained protocol-level keepalive: a missed pong
window terminates and reconnects, so the relay can no longer hold a ghost
registration that leaves every client tunnel hanging; the desktop relay
probe also hard-times-out at 8s instead of hanging status flows
- Services dropdown restyled with mobile-style cards: per-provider usage
cards, per-host instance cards with a selected highlight and a toned
status line, MCP servers grouped in a card
Reworks how devices connect to an OpenChamber server, end to end.
Pairing v2:
- One-time pairing links/QR codes (openchamber://connect?v=2) carrying a set of transport candidates (LAN/tunnel/relay) and a single-use secret redeemed server-side; no tokens embedded in links
- Add-a-device dialog written for first-time users: intent-based transport choice (Anywhere / Home network only / This computer only) with plain-language descriptions, transparent fallback checkboxes, server-authoritative LAN detection, high-res QR dialog
- Private relay folded into pairing as a transport candidate with a demand-driven lifecycle (enables when a relay device is paired, disables when none remain)
Multi-transport devices:
- A saved device holds all its transports and one token; mobile re-probes on connect, resume, and network change and hot-switches LAN<->relay seamlessly (no re-pairing, no remount, session preserved)
- Desktop can import relay pairing links, switch to relay hosts through the E2EE tunnel, and restore a relay default host after relaunch
Device management:
- Device list (web + desktop) shows live per-device connectivity with the active transport (Connected - Local network / Relay) and platform badges (iOS/Android/macOS/Windows/Linux)
- One physical device = one record: stable per-install dedupe keys across pairing and password re-login; typed pairing label names the device, paired devices name the connection by the issuing server hostname
- Trusted desktop-local client manages all devices (list, revoke, clear revoked); relay host reaps dead client sockets after 3 missed keepalives
Android:
- LAN transport unblocked (cleartext + mixed content, mirroring iOS ATS exceptions); resume re-probe retries through network flux and silently auto-reconnects from a disconnected state
Adds OpenChamber Relay — an opt-in way to reach an instance from a phone,
browser, or another desktop from anywhere, with no open inbound ports, no
tunnel, and no shared LAN. The instance dials outbound to a relay; all app
traffic (HTTP, the event stream, terminal, dictation) is multiplexed and
encrypted through a single connection per client, so the relay only ever
forwards opaque ciphertext.
Transport
- End-to-end-encrypted channel over WebCrypto (ECDH P-256 -> HKDF ->
AES-256-GCM) with a capability-negotiated handshake and a small
HTTP/SSE/WebSocket multiplexing protocol. A byte-compatible JS host mirror
is cross-checked by tests.
- Host: outbound connection manager, per-client tunnel dispatcher to the local
server over loopback, reuse of the existing instance identity key, and
management routes. Disabled by default; explicit opt-in.
- Client: plugs into the existing runtime layer (runtime-fetch/-url/-switch/
-auth, event pipeline, terminal, dictation) so features work over the relay
unchanged; direct-URL and Electron realtime-proxy paths are untouched.
Pairing & UX
- Relay section in Settings -> Remote Instances (live status, QR/link pairing,
revocation via the existing client-token list) and the mobile connect flow.
- Frame batching and idle-gated keepalive keep tunnel message volume low
without affecting streaming smoothness.
Security
- The tunnel is transport only; the server authenticates every tunneled
request exactly as for a direct remote client.
fragments only. The relay stores no keys, tokens, or payloads.
Operability
- The endpoint can be pinned to a self-hosted rel
paired clients inherit it from the offer automatically.
- Relay module DOCUMENTATION.md and a relay-trans
invariants that future WebSocket/streaming changes must follow.
The relay transport is complete and tested; the UI for enabling and pairing
is gated behind openchamber_relay_gate and stays
Bohdan Triapitsyn