TempleOS is definitely a curiosity, a "what if you made a Commodore 64-type firmware for a desktop PC?" experiment.
CP/M from the late 70s or early 80s was definitely more useful and usable than TempleOS. Even today there are more things you can do on CP/M powered computers old retro or modern vintage. It seems that fans of Terry's personality and public ravings made people think TempleOS is something grand simply because of their fandom of the man. It's just not that special and certainly not groundbreaking. I'd rather run OS/9 or CP/M because they were so much more developed and useful.
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