And then you have the look and "you can touch if you give away all rights for what you contribute". Contributor License Agreements where basically you contribut

And then you have the look and "you can touch if you give away all rights for what you contribute". Contributor License Agreements where basically you contribute to a "GPL" project, but you sign away the rights to your contribution to the company, so they can still close source it any time they please while including your code.