I started using Linux as my main desktop OS in about the year 2000. I bought the Debian 2.1 "slink" CD-ROM set. At the time I also dabbled with other OSes too: Windows, BeOS, and also Minix. Over the last 20 years, through University and my career so far as a software engineer, Debian has been incredibly reliable, and has been my go-to choice whenever setting up a new machine. About five years ago I came across NixOS.