Camino has been open source and developed entirely by a community of volunteers for most of its life. There were extensive instructions on getting involved on the website for many years. There was even a specific push to recruit new people a year ago to make the transition to WebKit so that it could continue to use a modern engine, which is the only way it could have survived once Gecko stopped supporting embedding.

If there were a community of people with the time/interest/skill to develop it further, the project wouldn't have shut down in the first place.