I am unaware of such resources, although I have found an old thread about this same topic. The conclusion was that indeed Anki Mobile and Anki Desktop were not fully accessible to blind people, although @DoctorToBeIn23 seemed positive it is possible to make it accessible (talking about Anki Mobile).
That was also the conclusion of the main Anki developer, in that thread.
I think it would be a great idea to put all the required modifications to enhance Anki’s accessibility in one place, and since I have the impression this has been done nowhere else, this is a good place to start!