The client-side is open source, but within the code, there are two separate parts:
* configuring the main WireGuard peer (https://github.com/NordSecurity/libtelio/blob/v4.0.6/src/dev...)
* using it to acquire endpoints (https://github.com/NordSecurity/libtelio/blob/v4.0.6/crates/...).
The server side, on the other hand, is not open source yet.