avr-device is used at run time in 2 crates (of which 2 optionally). It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) avr-device version
29K 43 embassy-executor optional ^0.5.3
2 nostd_async optional ^0.5.2
1 avr-progmem dev ^0.5