Free Unix OS
Quoting the FreeBSD website:
FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.
FreeBSD was the first BSD that I used on a regular basis back during the 4.2 days, which means I entered this community in 2002. I was a FreeBSD user for a little while, but I moved on to NetBSD within a few months. NetBSD felt much less complete, yet more polished, at the time which fit my goals of contributing to an operating system project.
It wasn’t until the year 2013 that I came back to FreeBSD. I had been developing the [Kyua]/software/kyua.html) testing tool on the side for NetBSD, but it was never really put to use there. FreeBSD adopted it.
My contributions to this project were limited, primarily because of full-time work and not running a home server any longer.