Odin is not like JS or something where you'd need a VM or transpilation process to target an embedded system. It's just C with nicer syntax and modern data structures, there's no "squeezing" required. You just compile for the target you want to run on.

Here's a UI framework, if you scroll down you'll see it on a Raspi Pico: https://github.com/MadlyFX/Ansuz

I think you missed "native development". I'll rephrase:

Could a toolset to develop in Odin be made to run on (not just target) an STM32 microcontroller like you used?

> It's just C with nicer syntax and modern data structures

That suggests the above would (in theory) be possible for any device that's roughly in the same class as "can run a C compiler". Correct?