There was TUNIS in the early 80s, an operating system binary compatible with V7 Unix and implemented in a Pascal-like language. I've been meaning to find more i

There was TUNIS in the early 80s, an operating system binary compatible with V7 Unix and implemented in a Pascal-like language. I've been meaning to find more information on it, but there's almost nothing online. It might be the only Unix clone that isn't implemented in C/C++.