Two programs share this page because they share a language and most of their libraries: the host that runs on your machine, and the services that broker sessions.
Core systems
Rust for both the host and the API. Memory safety without a garbage collector is the right trade for code that touches frames every few milliseconds.
Accounts, machines, plans, invites and billing history, with real constraints so the data stays consistent under concurrent use.
Short lived state: pairing codes, one time passwords, session presence. Anything that must expire lives here.
The host
Virtual display
A kernel driver on Windows that adds a display at whatever resolution and refresh rate the client asks for, so headless machines behave like desks.
Input filter driver
Keyboard and mouse events are delivered as device input, which is why raw input games and anti cheat friendly titles read them normally.
Virtual gamepad
An Xbox compatible controller appears on the host through ViGEmBus, with rumble carried back to the pad in your hands.
Service mode
On Windows the host can run as a service, so it is reachable before anyone signs in, including the login screen and administrator prompts.
The services
| Component | Job |
|---|---|
| API | Accounts, machines, plans, invites, billing through the payment provider |
| Signaling | Introduces host and viewer, exchanges offers and candidates, hands out relay access |
| Relays | TURN for WebRTC, QUIC relays for Media over QUIC rooms, in several regions |
| Mailer | Sign in links and the few emails the service sends |