Dangit. This is the sort of thing that's equal parts frustrating and exciting, in that I've had a lot of these ideas independently and this is the first time I'm discovering that someone has implemented them. Especially this infinite canvas idea, which I'm very confident would work wonders for me (and many other people) mostly owing to the power of "spatial memory," which I feel like is a wildly underused human feature. (e.g. memory palaces)