I had, indeed, not found the man pages, thank you. I also intend to write up how to deploy Wireguard with a simple "access the home LAN from the outside" configuration in the next few days, which will hopefully be useful to people.
If there's something that involves wireguard itself that's missing from or unclear in the docs, could you please clarify?
Sure, none of it is specific to Wireguard, but my personal use case was "hey, Wireguard looks cool, maybe I could use it to access my home LAN when I'm away. Hmm, how do I talk to the other machines from the VPN server?".
It's like saying "if you want to bake a cake, none of the baking has anything to do with our flour". You're technically right, but it'll benefit you to put a recipe on the box.
The same way you would if everything on your side of the VPN tunnel was on the other side of the VPN tunnel, there was no VPN, and the VPN server was just a router joining the two subnets.