Question about Base code

I'm working on another hobby game to try to get myself in the right headspace for Ludum Dare, and there are a lot of really helpful "libraries" that I've created that I'd like to use in the finished project. Most of these are just common problems that I might encounter (9-slicing, tweening, sound management, etc.) Should I post them publicly, or can I just use them? I'll like to them in a Gist or something similar if that's good practice.