The Raspberry Pi is a minimal, single board computer which has proved popular among hobbyists and in educational settings. The Pi's minimal resources are well suited to efficient operating systems that can be customized to the Pi's hardware. Ian Darwin has been working on getting OpenBSD running on the Raspberry Pi 3 computer. "The Raspberry Pi computers are interesting in their own way: intending to bring low-cost computing to everybody, they take shortcuts and omit things that you'd expect on a laptop or desktop. They aren't too bright on their own: there's very little smarts in the board compared to the "BIOS" and later firmwares on conventional systems. Some of the "smarts" are only available as binary files. This was part of the reason that our favorite OS never came to the Pi Party for the original RPi, and didn't quite arrive for the RPi2. With the RPi3, though, there is enough availability that our devs were able to make it boot. Some limitations remain, though: if you want to build your own full release, you have to install the dedicated raspberrypi-firmware package from the ports tree. And, the boot disks have to have several extra files on them - this is set up on the install sets, but you should be careful not to mess with these extra files until you know what you're doing!" Details on Darwin's experiment can be found in this post.