In your opinion, could a minimal system to develop in Odin be squeezed into a device like the one(s) you targeted?
That's assuming maybe some tweaks to the toolset, doing without some niceties, but not cutting core features out of the language.
Asking 'cause I have a passing interest in programming languages that allow for native development on really small implementations (think sub-1MB on bare metal). The list of candidates doesn't seem long.