- **[libs/hbb_common](https://github.com/rustdesk/rustdesk/tree/master/libs/hbb_common)**: video codec, config, tcp/udp wrapper, protobuf, fs functions for file transfer, and some other utility functions
- **[src/server](https://github.com/rustdesk/rustdesk/tree/master/src/server)**: audio/clipboard/input/video services, and network connections
- **[src/client.rs](https://github.com/rustdesk/rustdesk/tree/master/src/client.rs)**: start a peer connection
- **[src/rendezvous_mediator.rs](https://github.com/rustdesk/rustdesk/tree/master/src/rendezvous_mediator.rs)**: Communicate with [rustdesk-server](https://github.com/rustdesk/rustdesk-server), wait for remote direct (TCP hole punching) or relayed connection
- **[src/platform](https://github.com/rustdesk/rustdesk/tree/master/src/platform)**: platform specific code