Hi, Philipe. TextFlow is created using Python and we have no plans to support other script languages yet. Maybe in future.
But, you don't need to learn Python to contribute with TextFlow. The easiest way to contribute is creating snippets, see our documentation:
http://docs.textflowproject.org/snippets.html
There are other ways to contribute too:
http://www.textflowproject.org/contributeIf you only want to contribute coding you can learn Python, it's easy. When you feel confortable with the language you can meet us on #textflow (
irc.freenode.net)
Thanks for your interest in TextFlow.