The current release is Nuitka 0.4.2, which is a good replacement of CPython with somewhat better performance. A 258% speed factor for the PyStone benchmark. The project didn't focus much on the performance side of things so far, therefore more improvements are expected in the future.
These archives are source and can be used directly, simply start bin/nuitka --help or read README.pdf to get started.
Stable releases are supported with hot fixes.
Then do your own modifications, and do git "pull --rebase" each time there is a new release. To reduce your differences, feel free to send me pull requests or the patches you create with "git format-patch <commit-id>" and I will likely merge it.
If you publish your own repository of Nuitka, please be so kind and name it "Nuitka-unoffical" or similar, or else it might be mistaken with the real thing, and drop me a line about it, just so I know.
Visit https://gitorious.org/nuitka/nuitka for a mirror of the Nuitka repository on gitorious.
Visit https://bitbucket.org/kayhayen/nuitka for a mirror of the Nuitka repository on Bitbucket.