Or make money by selling a service around this (A)GPL code, but provide the modified code to your users if you modified it (even better, publish the code for ev

Or make money by selling a service around this (A)GPL code, but provide the modified code to your users if you modified it (even better, publish the code for everyone, but that's not required by the GPL, otherwise it would not be a free software license anymore). This is important: one can build a service around an open source project and make money without paying or asking for a specific license. People doing this still need to give the code to their users if they request it with the same rights, and will be incentivized to contribute back upstream if they need to adapt the code to provide their service because it is less costly than maintaining an ever diverging fork, which is great! Do sell commercial services around my GPL code! A commercial license is only needed to allow building proprietary software based on the GPL code, but it is only possible to provide one if the project has no other contributors than the one selling the commercial license, or those contributors sign a CLA.