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.
The advantage of wildcard certificates is that you don’t have to expose each single subdomain over internet. Which is great if you want to have https on local only subdomains.