I try to work 30 minutes on a side project every day. Initially, I needed a way to track my daily sessions. It is easy to miss a session if you don't have anything to lose.
I tried this idea with a friend, where I paid him 1$ for each day I didn't work. That worked pretty well for me, so I thought it might help others as well. I put my other project aside and started to bootstrap this 30min.io in half an hour sessions every day.
This is the final product with me as the first user.