Whether or not your employer can claim ownership in court depends entirely on your contract. But no matter what's in your contact, that route is probably not your best option. From what I understand, you created, in your own time, a project that is valuable to your employer, and that they want to use and develop. You're the expert on this project. Not just that, you designed every aspect of it, popularised it, and yo…
> Whether or not your employer can claim ownership in court depends entirely on your contract. Entirely this. I got burned by this years ago, developing side project that was completely unrelated to the sort of work my employer did, and was not developed using any company resources. But my employment contract specified that my employer had first rights to anything I developed at all during the term of my employment.…
https://lists.sfconservancy.org/pipermail/contractpatch/2018...
Software Freedom Conservancy reminded me that everything is negotiable: