It's worth noting that there is also the hilarious PonyOS which is based on ToaruOS. The main website[1] seems to be down right now, but you can check it out on GitHub[2].
Can I ask what server you rent from DO for hosting those sites? Like what kind of hardware do you need for that sort of project.
And also, how much traffic did you get from being on the frontpage of HN?
I'd like to see those alternative OSes target the ARM architecture; the smaller number and type of peripherals should make it simpler to develop on (probably not emulating though) compared to a pc. It would make an interesting choice for smaller boards where either a full fledged distribution might choke or where one wants to squeeze out the most from the few resources available.