I’m confused, your post implied running unifi protect on your own hardware, but this link is about adding 3rd party camera streams into unifi protect.

Did I miss that?

idk what nonsense the other commenter is posting but essentially your network flow should look like this:

internet user -> your IP (found via dynamic DNS) -> firewall/router DNAT port 443 -> proxy (nginx/caddy) listening on 443, backend set to port 80 -> vaultwarden port 80

You’d load your SSL certificate into the reverse proxy, I’m not familiar with caddy but I use nginx for this purpose.

Ubiquiti killed the bring-your-own-hardware option for unifi protect many years ago, unless you go down the road of hacking their app into a docker image.