I switched to fossil for personal projects a few years ago. Documentation and ticket system already there, hosts itself so don't need to bother with github etc. Different collaboration model but so far has worked fine when I've needed to bring other people in.

fossil is great, and I wish more companies used it. It's so simple, has everything you need, documentation, bugs, email alerts, chat, a forum, a wiki. It's all there. Having to go to jira to manage something, confluence for something else, git for source code and bug tracking, it's all a mess, when you can use something like fossil. Yet all I hear when I mention fossil is "never heard of it, not using some toy project, sticking to what I know".