[kuschku]

Every time I see a project that's paid where people comment "I could create the same in a weekend", that's exactly what I do. By now most of the apps I'm using daily are written by me. It's (a) fun, and (b) gives me the satisfaction not to pay for something that's not worth it. For open-core projects, I usually just fork and rebuild all the paid features ontop of the free version. That's actually surprisingly easy most of the time.

(Obviously I then release everything I create under GPL, so others can use it freely and expand on it)