How to add a Linux library?

[jjanvier]

Hello there :) First, thanks for your work!

The package I want to build requires a special library under Linux (libasound2-dev). Of course it's not present in your images.

What could I do to add this library locally and be able to compile my program?

Also, what's the difference between gythialy/golang-cross-builder and gythialy/golang-cross. I didn't get it.