Host them yourself by tunneling git over ssh. It's easier than you think.
I just made a tool to help streamline the process. http://grit.hackyhack.net
That said, I think there's definitely a use case for some sort of bug tracker/wiki which can be embedded in a repository, a'la Fossil. Perhaps flat files rather than SQLite though, so you can track changes in your repository. Not sure how you'd get changes in though, other than via a pull request.
# TODO
* add foobar support
* remove baz
* refactor quux to be more QUUUX-compliant
Why use a web interface for what a text file does fine? You aren't sharing with anyone, so you don't need collaboration capabilities.Nobody was interested. All the good programmers I know have a simple text file or a mental TODO list. This added too much complexity. On the other hand, all the managers I know want checkboxes and reports and auditing and ..., which made this too simple.
So just use a text file.