You can go ahead and send that open letter, but why not just fork it and go ahead and add the things you want until he accepts it? Adding contributions to the code and then telling him, "Hey, I added a bunch of things, fixed a bunch of bugs, etc. Can you give me push access?" is better than "Hey, you haven't been putting in much work into this project. Why don't you let other people work on this?". Who should he give access to? Why?<p>Give reasons. Not requests.