Hey jreesun!
I saw you are cooking and preparing something for a while but I forgot to post updates in this topic.
This looks much better and cleaner in github and I will finally have to power up my M5Stick device that is collecting dust and waiting for better times.
Instructions on website will help a lot in this process, and I will try to report in forum how everything tuned out in my case.
Great to see you have stepansnigirev and other onboard.

Interesting thing that I found out is that Krux will be able to work with Sipeed Maix Amigo devices soon, and they are based on RISC-V chips!
I believe price for this devices was around $50 dollars last time I checked, but I am not sure how easy is to buy them now for that price.
I think this would be first a RISC-V based bitcoin signing device.


https://wiki.sipeed.com/soft/maixpy/en/develop_kit_board/maix_amigo.html