Homebrew OS»Forums
Niklas Lundberg
4 posts
Full-game developer.
The definition of a handmade OS :-)

Enjoy this combined genius/crazy.
3 posts
The definition of a handmade OS :-)
Absolutely incredible! He wrote everything from scratch, including the boot loader and dialect of c he calls "HolyC"!
So inspiring.
Mārtiņš Možeiko
2435 posts / 2 projects
The definition of a handmade OS :-)
Project is technically interesting. But be careful with the author. He has some serious mental issues. He is religious fanatic, CIA conspiracist, racist, and cannot listen to any constructive criticism when somebody is commenting on his TempleOS.

Here's what author is writing:
https://news.ycombinator.com/item?id=11554821 (you need to login to HN to see dead comments)
He's been banned multiple times from various tech sites (HN, gamedev.net, etc..) for his language.

Another good handmade OS would be MenuetOS: http://www.menuetos.net/