Information for Trac Hack Developers
The TracHacks Subversion repository is at http://trac-hacks.swapoff.org/svn.
Each hack has its own top-level path, with sub-directories underneath each directory for each release that the hack is available for. eg.
When a NewHack is registered, the developer is given write access to the entire path underneath their hack, so these are just default directory layouts.
TracHacks has the trac-post-commit-hook installed, so you can use the handy closes #x, etc. when committing changes to the repository.
If you have any issues with TracHacks, check the existing tickets, then create a ticket.
If all else fails, contact me.