"It is a fork of pfSense, which in turn was forked from m0n0wall, which was built on FreeBSD. It was launched in January 2015. When m0n0wall closed down in Febr

"It is a fork of pfSense, which in turn was forked from m0n0wall, which was built on FreeBSD. It was launched in January 2015. When m0n0wall closed down in February 2015 its creator, Manuel Kaspar, referred its developer community to OPNsense" [0] I just heard of OPNsense today. Also, there [0] is a thing about pfSense hoarding OPNsense's domain ... [0] https://en.wikipedia.org/wiki/OPNsense https://en.wikipedia.org/wiki/OPNsense