PfSense vs OPNsense: technical comparison
As someone with extensive experience and nuance in the FreeBSD community, I will just say that OPNsense and closely affiliated HardenedBSD are basically unintentionally hilarious clown projects.  They created some bad blood with particular people but the HBSD side tends to just give me a good belly laugh every handful of months, usually around the larger conference season.  Folks from OPN and HBSD appear to have rudimentary grasp of C while making grandiose security claims.  This is probably my favorite feature comparison of all time <a href="https:&#x2F;&#x2F;hardenedbsd.org&#x2F;content&#x2F;easy-feature-comparison" rel="nofollow">https:&#x2F;&#x2F;hardenedbsd.org&#x2F;content&#x2F;easy-feature-comparison</a>.  It appears to be largely cult of personality ensnaring users that don&#x27;t really know any better.<p>YMMV but for people wanting a firewall you&#x27;d be much better off with pfSense, stock OpenBSD, or stock FreeBSD.  To get involved in OS work or BSDs you&#x27;re much better off with Free&#x2F;Open&#x2F;Net&#x2F;TrueOS.  Those are communities filled with competent people to support the code and that you can learn from.