Discover
Nearby devices advertise and discover active sessions on the same LAN. An 8-digit room code remains the manual fallback.
Architecture
Direct enough to use.
Documented enough to inspect.
Pastey combines local encrypted payload storage, UDP LAN discovery, temporary HTTP transfer endpoints, and a binary chunk transport.
Encrypt
Text becomes bytes. Files and images remain generic binary data. Payload encryption and decryption happen locally.
Schedule
The frontend plans the ordinary file queue; one Rust capacity boundary admits both ordinary and managed transfers before the established single-file path.
Transfer
Binary-v1 encrypts, chunks, streams, acknowledges, and finalizes files over the local peer endpoint. JSON/base64 remains a compatibility fallback.
Current boundaries
Clear about what exists now.
Implemented: encrypted local storage, LAN discovery, nearby join, binary-v1 transfer, compatibility fallback, and validation tooling.
Experimental or diagnostic: planner shadow diagnostics and broader device-capability work.
Not current: cloud relay, remote storage, bundle transfer, binary-v2, substream multiplexing, or a second transfer stack.