Hello,
Your help is more than welcome, I think the best way to contribute is first to join the developer mailing list and take part into discussion or give us feedback on what you liked, what you dislike, how you use the library. Meanwhile you can step into it by creating patch that addresses issue on the tracker. The more people we have working on GLFW, the more chance we have to cover all platform and improve GLFW more quickly. Also a good way to do it is to nag Camilla…