There has to be a small Unix-like OS that could fit an RP2040 or ESP32. No MMU might be a deal-breaker for a more complete (and secure) OS, but we don’t need all that functionality in every form factor.
I’ve been hoping for this as well, but so far I haven’t seen anything that isn’t so limited as to be unusable for anything other than saying “look, a shell!” Can’t run programs from the shell etc.
