Nice story Dragos Bulugean,I have had similar stories with my pet projects and never be able to dedicate some time to finish them up to be a paid product. Always life and work came first when I have some spare time.
Aside from that I wanted to ask you about the JointJS. One of my pet project is heavily diagram designing. How was your experience with JointJS. I have worked with GOjs at one of my previous jobs and library-wise it is pretty heavy and complex. Which I do need its complex structure to handle many use-cases I have but I was wondering if anything else out there that I can compare against.