I haven't used FreeBSD for almost 10 years now but it was my first non-Linux OS back in early 2000s and the primary OS we used at my first IT job. The FreeBSD

I haven't used FreeBSD for almost 10 years now but it was my first non-Linux OS back in early 2000s and the primary OS we used at my first IT job. The FreeBSD handbook is something you actually had bookmarked, I checked the handbook before I searched the web. There is no Linux distro today with a handbook like the FreeBSD handbook, in terms of how I used it at least. Same goes for OpenBSD.