Yup, I’ve done this. I use a fly.io proxy that runs nginx, fail2ban, and that forwards to my tailnet where Caddy resolves to the actual instance. It’s critical that you disable local registration - I have authentik (only available on the tailnet) as an IdP but you can also just disable reg after making your own account of course. I also have a robots.txt that disables some stuff like all the individual rendered git commit views otherwise scrapers get stuck in an endless loop and also I strictly forbid access to the forgejo package repository since I have some private packages and the permission granularity there is not what I want it to be, still dialing that in. I’m keeping an eye on it and so far nothing terrible has happened. docs.eblu.me if you would like details… I could also link straight to the infra code if you like.