Self-host templates without Caddy

Would very much like an option without caddy as most of us in the self-hosting world already have a reverse proxy system in place for other things we host. Having to go through editing this and possibly having it break in the future, resulting in more time spent troubleshooting isn't that alluring :) So pretty please, give us options.

I've been using NPM for years and do with Fluxer as well. It's two config lines to use your own reverse proxy. Put the stack on 80 internally so it doesn't do certs and set a host port. That's simpler than some other services... how can this be easier? You only have to set FLUXER_CADDY_SITE_ADDRESS=:80 And pick whatever you want for the Caddy port. 1234:80 done.