Yes I think it's both those things, and really a few different projects with overlapping goals:
Cree# itself as a general-purpose language based on C#/Java with Cree keywords
Ancestral Codes and wisakecak as multimedia versions of the language, what he calls the "digital storytelling apparatus." Here he's bringing in cultural logic from Cree, with programs as stories written to the Raven, as interpreter of the code, used to record and present stories from Cree elders, etc
And then the Indigenous Toolkit to help other communities build programming languages around their own traditions