Developers who do stuff like this generally do it for themselves and people who are very similar to themselves. I've released quite a few products in a similar fashion requiring people to host and install it themselves and someone always makes this comment. I don't build software like this for other people, I build it for myself, I share it with everyone because someone else might want to build on top of it or use it, I don't really care if it "takes off" because it solves a personal problem in my own life.