This is like a pencil drawing rather than even an MVP. Just to be honest, it's not satisfactory for any reasonable minimum; it will leak, exposed OSB will rot a

This is like a pencil drawing rather than even an MVP. Just to be honest, it's not satisfactory for any reasonable minimum; it will leak, exposed OSB will rot away like cardboard, the framing won't support repeated opening and closing of the door, and the aesthetics are rude to any neighbors.