While UPNP port forwarding works well for IPv4 (once you make sure to allow it in your local router config), I didn't find find it working yet for IPv6 and had

While UPNP port forwarding works well for IPv4 (once you make sure to allow it in your local router config), I didn't find find it working yet for IPv6 and had to make custom port forwarding rules for the IPv6 address. Also, while I couldn't use port 80 I was happy that Caddy has working Let's Encrypt cert generation for 443-only usage. These "small" issues are the largest hinderence in self hosting at home, from my point of view.