We managed to squeeze iroh onto an esp32: https://www.iroh.computer/blog/iroh-on-esp32
Compromises were made, lots of stuff hacked together. But we'll slowly work towards getting this better supported out of the box.
iroh

less net work for networks

@n0iroh I’ve only just started to dip my toes into the ESP32 microcontroller ecosystem and wow, they are capable little devices.

They just got even moreso.

This is awesome work, and I’m especially happy to see the team cares about making the stack tidy enough to run on these cheap little everything boards.

https://github.com/n0-computer/iroh-esp32-example