[mathiasgredal]

Not possible, unless you want to do it using an emulator and external memory. The lowest you can go for Linux is probably an ESP32:

https://web.archive.org/web/20230515075935/http://wiki.osll....

https://github.com/jcmvbkbc/linux-xtensa/commits/xtensa-6.4-...

[jrockway]

You don't need an ESP32. Someone made an AVR port: https://bit-tech.net/news/tech/cpus/linux-atmel-microcontrol...

https://bit-tech.net/news/tech/cpus/linux-atmel-microcontrol...

https://news.ycombinator.com/item?id=12537653