Originally a fork of git-dash but reworked and expanded in Python 3.
Option to build docset in any language supported by the Git manpages translation project - pass the ISO639-1/ISO3166-1 language/country code as an argument to gendocset.py, e.g. python gendocset.py pt_BR
The git-scm.com/docs convention appears to be:
<lowercase language code>_[<uppercase variant>-]<uppercase country code>
e.g. zh_HANS-CN
NB Translations are incomplete for many languages. In such cases, the docset will be built with English as the fallback language for documents that are yet to be translated.