That's sweet, I'm planning to implement something like this on my project[1] as well (also a Christmas gift to myself). Right now it spits out points but regions and polygons is on my to-do list.
Suggestion: make the map cover the entire browser window/remove the black borders, it gives it a more HD feel and it makes it immersive.
Doesn't it end up being kind of a shameless plug and less of a "here is something similar" when your own thing isn't at all similar and shares no functionality with what OP posted?
I mean, not really? It's not like I make money from it, it's completely open-source and free to use. I gain nothing besides sharing similar work to OPs which I found interesting.
[1] https://godview.ai