Hi community!
I have a lot of Java software here that is under a self-made license. I consider making it OpenSource but I’m a little bit helpless on how to do that?
What are the criteria choosing the right license (GPL, LGPL, MPL,…)? It should be usable in industrial projects that are not OS themselves. Is it possible to leave an option still to sell customized versions of OS software?
And more practically: how do I establish the license? Do I have to put a header to each file? What about data files?