On boot, you will get a regular Collapse OS BASIC shell. See the rest of the documentation for shell usage instructions.

An OS meant to run on highly minimal systems, in the context of a future “collapse” scenario. Also runs on Genesis.

https://git.sr.ht/~vdupras/collapseos/tree/master/item/arch/z80/sms

Whether these emulators support operating systems for these computers is unknown; it must be looked into further. PCs without meaningful OSes are not included.

CHIP-8 – SMS CHIP-8

https://www.smspower.org/maxim/SMSSoftware/Chip8

Theory-crafting thread of sorts.

https://www.smspower.org/forums/17506-OperatingSystemForSMS

https://github.com/EtchedPixels/FUZIX

http://www.symbos.de/