Looks promising. Thank you!

Thank you very much! I will have a look at those.

well I would pretty much configure everything and my friends would simply „use“ the servers by connecting to it via the games (Minecraft, Arma etc)

This is the first step taken by Luxembourg towards full legalisation in the coming year/s

Have you tried using ZeroTier? I don‘t have much experience using Tailscale but have been using ZeroTier for two years now without any problems. Runs great on Synology

I use a selfhosted public DNS which runs AdGuard Home where I have multiple block lists running that filter my whole Internet Access from Home, which not only makes my internet at home a lot faster because Ads and other annoying or malicious sites don‘t even get loaded/sent to my home network, but makes it also safer. I run it on a VPS since I have my parents and friends use it too.