I am self-hosting an Apache2 setup using on a Debian server with a domain which is linked to an ip connected by AT&t Passthrough. I have an SSL cert from Certbot and firewall setup for port 443, and 80 for CasaOS which is connected to a TailScale VPN. )The TailScale is only linked to port 80 and CasaOS, but I thought important to mention because Apache can use Port 80)