This is from the linked website, in the Q & A page: Wren is a replacement for Finch to me. I gave it a new name mainly so that I can keep Finch around in case

This is from the linked website, in the Q & A page: Wren is a replacement for Finch to me. I gave it a new name mainly so that I can keep Finch around in case other people want to take it and do something with it. I don't have any intention to work on it anymore.