I’m liking the simplicity of dockcheck

https://github.com/mag37/dockcheck

I also can’t find releases on mobile. I see a bunch of f-froid publishing stuff at bottom or readme. Doesn’t seem to be on f-froid now, but maybe will show up there eventually.

Use Caddy for reverse proxy. It’s magic. Just put in config the subdomain/domain and localhost port to point to, it will fetch and configure and keep certificates up to date with zero effort. You’ll forget certificates exist. It just works.

One easy way to test accessing your site externally is use a free web proxy to try to load it.

For example (not a personal recommendation, just a random search result) https://wproxy.net/