Want to build your own Firewall? This is the software to use.
OPNsense is the best firewall solution and here's why I won't switch to anything else.

There's a good chance you're using a router from your internet service provider (ISP), but did you know it's easy to build your own firewall? Attach a switch and access point, and you'll have a powerful DIY networking solution that provides you maximum control over every aspect. The only question is: which firewall should you use? I've passed through a few, and I kept bouncing between them until I discovered OPNsense — I've not looked back since.