The current version has been moved from Gist to Repo for better discoverability:

Version 1: https://gist.github.com/a6b8/e09c9c826d287b9ddd402d8275686575
Version 2: https://gist.github.com/a6b8/8385a07dcd254794094633c82c1bbc25

Additionally, documentation has been added to these versions. Furthermore, the code is now open-source and released under the MIT License.