M/PC – A Concatenative OS
Summary
M/PC is a concatenative operating system for Varvara that uses postfix notation to manipulate files and run ROMs, designed to operate without a traditional file browser. It defines a set of primitives (dir, mov, now, run, icn, txt, len, put, get, cpy, era, ren, and stack operations) and includes a kiosk mode to boot into BIOS-like behavior, a wallpaper mechanism, and a license suitable for open-source collaboration.