NetworkManager’s Gnome GUI works with wireguard config files. If you are using Plasma you would need to install some alpha software to do that in the gui but you can always fall back to nmcli which also supports wireguard configs via the import command.

So what do you think when you work with HeLas?

centigrade

and he was doing so well until this abomination 😡

Do you mean oldest as in invented the longest time ago or oldest as in that specific technological artefact that i use is the oldest one i have?
For the first one i guess cooking?
For the second one its definitely my microwave oven, made in 1991.