Thanks for the great comment, Esmaeil! I do agree with you that the GitHub repo is not maintained or owned directly by Facebook but rather by Oskar Triebe, the first author of the AR-Net paper.

However, Facebook AI does introduce the library as their own effort on Twitter:

Still I do agree with you that Facebook AI does not officially maintain the library on GitHub even though it played an important role in creating it. Thanks for pointing that out!

ML Engineer and Former Researcher