I had a useful JavaScript utility hidden away in the source for my Stone Halls & Serpent Men game, so I extracted it into its own thing:
Especially with people doing the #dungeon23 challenge, it may be helpful for quickly drawing a dungeon, roguelike style.
I'm pondering doing a full wilderness + dungeon adventure again sometime soon, and I'll likely use Tilemap for it, but I sure won't be doing a room a day or anything like that!