I think we need a category of "Misc, but not off topic". But for the meantime I put this in Off Topic
I've done some stuff on custom Google maps before, like the SEPN resource map no one really took to, but it's kind of labor intensive.
If you want to map something you have in a spreadsheet pretty much instantly, there's a tool that does it for free called zeemaps.
https://www.zeemaps.com/I was working on a repeater program for Wabbit's group and dropped it in there. A few seconds later...
Fun, powerful, and at least in my case, useful for a variety of tasks.