M/PC – A Concatenative OS (wiki.xxiivv.com)

Is this not more of a shell than an os?

Nevertheless an interesting idea. Unix pipes are basically concatenative, I've often thought how much mileage you could get out of going more in this direction.

Having said that. This has a lot of forth in it. (Dup, over, rot) I'm not sure the forth way, of passing options in the stack would necessarily work so well in a shell.

Not to be confused with MPC, apparently: https://en.wikipedia.org/wiki/Multimedia_PC

maybe I am dumb, but I don't really get how this is different to just piping between commands?

Does this name come from reversing "CP/M"?

Looks like the hardware this runs on has only 64 KB RAM.

Great work as usual.

I wish I were half as productive as Devine Lu Linvega. Perhaps I should get a sailboat and spend my time hacking without distraction, but I am not a fan of the seas.

They've been putting interesting update screenshots on fediverse recently: https://merveilles.town/@neauoire/116823589548151098