So, currently common-api is published in maven repository,

Can we also have common in maven repository please? There is a lot of code, especially from util package, that can be reused (for example InventoryUtil, etc). I understand the consiquences of using not-api packages.

Please, please, please don't use internal classes. It just ends up being a nightmare every time. If you just need to use the util package, you can just copy and paste the code into your own project (well, where allowed under the license). That's the joy of open source!

Okey, then how I can, for example, extract turtle access from block entity in common code?
Also, I guess, turtlesNeedFuel is not exposed :(

Okey, I will just make another issues with request for some extract API expose