Posted by jaypatelani 4 days ago
OpenBSD/FreeBSD/NetBSD are open source continuations of the source-available 4.4-BSDlite code (removing AT&T proprietary extensions iirc).
OpenBSD follows BSD principles but focuses on code clarity and security.
FreeBSD tries to be very flexible, putting user-experience over security. (it has to be noted that OpenBSD is very usable, but lacks a lot of nice features like ZFS and DTrace that FreeBSD supports).
NetBSD is all about being incredibly lean and portable. NetBSD will run on basically anything, even things that Linux and other *BSD's have no hope of running on.
So, leaning in to how SSD's behave instead of how HDD's behave- ensuring that the kernel can make effective use of multiple cores etc;
One of the running jokes is that you can "run it on a toaster" — see https://news.ycombinator.com/item?id=45712368