Cartridge Copier to Cassette found

I've acquired a unique cartridge to cassette copier that I would like to learn more about if possible. I can't find anything while searching.
It appears to be a dummy cart with a machine language program to perform the copying. I wasn't able to copy a cart yet (attempting centipede), but it could have been my blank cassettes or recorder. I have the Pill and the Impersonator, but this one I can't tell who made it.

Ideas what it is, and who made it?
Thanks!