Another &derpnet example - tunneling TCP traffic over derp relay:

• similar to SSH tunneling, but just using DerpNet api
• server connects to some TCP port on localhost and forwards all traffic from it to derpnet_proxy remote
• client listens on local TCP port and forwards all traffic to derpnet_proxy remote
• example is limited to only single connection to server, but same idea can be extended to support multiple connections
  https://github.com/mmozeiko/derpnet#derpnet_proxy

&derpnet ported to JavaScript - https://github.com/mmozeiko/derpnet/blob/main/web

• implements exactly same protocol as C code, with same encryption guarantees
• now you can communicate between browser and native code "without running" any extra servers!
• JS uses websocket to talk to Tailscale DERP server, which relays messages between your peers
• comes with two examples, one showing basic usage to send & receive messages, and one for exchanging files - both directions, upload to browser and download from browser supported

&derpnet - simple end-to-end encrypted network library in C for Windows.

• single header library to provide encrypted communication between peers
• uses Tailscale DERP relays for low bandwidth communication even when both peers are behind NAT
• comes with 3 examples showing simple message exchange, file sharing or chat between users
  https://github.com/mmozeiko/derpnet