Chat source of truth
The client's local store is a cache; this server owns the real history for the conversations created on it.
The server side of PickUsAll
A C++20 server built on oat++ for PickUsAll (Picasso), a KMP / Compose client for gaming-focused friend groups. Each conversation lives authoritatively on exactly one instance — self-hosted or managed — and clients hold a WebSocket connection to every server they have added.
- C++20
- oat++ 1.3.0
- Conan
- PostgreSQL (planned)
- WebSocket
What it does
Call signaling only
Audio never touches the server. It resolves who is in a conversation and online, then forwards opaque SDP and ICE payloads — media is a P2P mesh between participants.
Steam login verification
Steam Web API calls stay on the client. The server's Steam-facing job is validating OpenID assertions, which a client cannot do for itself.
Roadmap
- Skeleton Modules, env config, real bind errors, one JSON error handler. Done
- WS transport Hub, session and codec exist; dispatch still needs to reach the services. In progress
- Auth Steam OpenID and session tokens, validated on WebSocket upgrade. Planned
- Storage Schema, migrations, repositories and the REST history endpoint. Planned
- RTC signaling Membership checks plus forwarding between call participants. Planned
Running it
The binary binds 0.0.0.0:8000 by default; PICASSO_BIND and
PICASSO_PORT move it. GET /ping answers pong with an
X-Service-Status: Healthy header — endpoints that are not built yet reply with a
uniform 501 naming the roadmap step they are waiting on.