Yes - literally just pick the right Caddy (or similar) image with Let's Encrypt client included - and you can simply add a tag/label to your docker compose file

Yes - literally just pick the right Caddy (or similar) image with Let's Encrypt client included - and you can simply add a tag/label to your docker compose files for each of self hosted services to get a real SSL, that auto renewed ...etc. With one of self hosted services being Adguard-Home can do both ADs blocking and internal DNS... The public DNS records for your "internal use only" domain remain empty.