Fussy is a very young project, so feel free to pitch in if you have things you want to share. The code is hosted on Launchpad and managed using bzr. You can email the author as well.
Source code installation for contribution/extension:
$ apt-get install bzr tar rsync gnupg
$ virtualenv fussy-env
$ source fussy-env/bin/activate
$ bzr branch lp:fussy
$ cd fussy
$ python setup.py develop
$ pip install nose globalsub mockproc coverage
$ cd tests
$ ./covertest.sh
Feel free to issue pull requests in Launchpad if you have enhancements you feel you need.