> Hope to release wireguard on FreeBSD soon as well.

Available as a Port / package:

* https://www.freshports.org/net/wireguard/

* https://www.freshports.org/net/wireguard-go/

Running it in a jail for further compartmentalization:

* https://genneko.github.io/playing-with-bsd/networking/freebs...

* https://news.ycombinator.com/item?id=23004061

hopefully OPNSense gets the same soon. they already ship it (i think as a kernel module).