I have finally got my selfhost wiki up to a satisfying shape. Its here: https://wiki.gardiol.org
Take a look i hope it can help somebody.
I am open to any suggestions about it.
Note: the most original part is the one about multi-homed routing and failbacks and advanced routing.
Now the big question is: are you an Arch or a Gentoo lover? Just joking.
At one point was arch lover, then I became a gentoo lover.
Now I’m on nixos because gentoo didn’t have a good retroarch package.