Whitesmiths Idris for the Atari ST, an early Unix-like real-time operating system produced by Whitesmiths, has been fully recovered and now runs under emulation. Idris is a Unix variant I never heard of which ran on a variety of machines, even 8080 micros.
https://virtuallyfun.com/2025/12/31/whitesmiths-idris-os-for-atari-st-virtualized/
@amoroso I wan to try it!
More about idris here: https://adventofcomputing.libsyn.com/episode-149-idris-is-not-unix
@amoroso I'm not sure that this information about an 8080 port of Idris on the Wikipedia page is correct. The Whitesmiths C compiler (see github link below) definitely has an 8080 backend, this was used to build another 6th Edition Unix clone for Z80 systems, Morrow's Micronix.
https://github.com/hansake/Whitesmiths-C-compiler/tree/main/c_compiler_v22_src
https://www.retrotechnology.com/herbs_stuff/mnix_micronix.html
https://github.com/cm68/micronix
@me_ I don't know, Wikipedia has no source on this.
