What open source license do I use to also enable proprietary development using my open source library? I don't want to force all the proprietary source code to be free and available.
I'm building a wrapper over a commercial proprietary application's (CA) RestAPI in C#. I'm interested to put that wrapper into the public domain, and maybe open source it. My hope is that will promote use of the CA. I'll be making use of that wrapper in my own admin application, and that admin app will likely be free for individuals, but paid for commercial use and be proprietary.
Follow up - is there a community for micro-dev companies, one man band operations doing it for love and beer money?