UptimeKuma looks nice. Simple, but it does what it is supposed to.

Forgejo, immich, planka, seafile

You’ve just reminded me to fix cert renewal on my instance. I’m using let’s encrypt & their certbot with nginx and it is great.

Recently my nginx config got too complex, so nginx plugin stopped working correctly, because it wasn’t able to inject the config for ACME challenge correctly anymore. The solution was to manually configure location /.well-known/acme-challange to read from a local directory and configure certbot to use a local webroot directory instead of fiddling with nginx config.