I dont know him, I just know his name. I think we all know him here as Terry.
https://news.ycombinator.com/threads?id=TempleOS
It was previously 'losethos', when that was his project's name:
https://news.ycombinator.com/threads?id=TempleOSV2
is the only one I can remember off the top of my head. For a while he was using TempleOS and TempleOSV2 concurrently, but it seems he hasn't used V2 in over a year.