Like playing around with Linux on low-power devices? You’d be hard pressed to find a better example than the [tvlad1234]’s linux-ch32v003 project. It’s not just a one-off — it’s something you could build right now, since it requires hardly any extra parts.
This is a companion discussion topic for the original entry at https://hackaday.com/2024/03/03/bring-linux-to-ch32v003-through-yes-risc-v-emulation/