Andrew is gifted with powerful confidence, in himself and others. He has put that confidence to use in writing a range of delightful microgames for his own enjoyment. So great and terrible is this confidence that he writes his own profile in third person and calls his own writing "delightful." Also these delightful games vary from goofy one-shots to overly serious genre pieces.
You can reach out to Andrew via email (ThatOneGM via Google's email service) or on Mastodon if you have any questions, to request a free copy of one of his games, or to tell him that his profile is badly written.