

It can be done, just carefully. You can definitely accidentally block yourself out if you set a firewall rule up incorrectly, or in higher precedence of order for example. OPNsense (like almost every firewall known) processes rules in a “top down” order. So you put your blocks at the bottom!!!
Reverse proxy won’t lock you out, essentially that’s just slapping HTTPS on a webserver/service like Jellyfin, so you can access it without requiring a VPN.
Here’s a reverse proxy explainer, pt 2 is the actual setup!



If you knew what was under the hood you would not say it’s “just” customized nginx… It’s more like customised, optimized and simplified.
It has many enhancements builtin like automatic certificate generation and renewal, fail2ban, prebuilt optimized configs, and easily enhanced security with crowdsec and even geofencing.
But made way easier than doing that separately with raw NGINX.
It’s much more friendly to pickup and run with then raw NGINX.