• Submit bugs, issues and patches to the HaXe issue list.
• Work on Development of a compilation target for haXe

If you want to make some changes to HaXe you should first discuss them on the mailing list.

The code for HaXe is in Google code:

svn checkout http://haxe.googlecode.com/svn/trunk/ haxe-read-only

Make your changes, prepare a patch, submit it to the mailing list.