Here’s an automap for Zelda 2. Something I’d been working on using an ugly combination of Python and BizHawk’s Lua scripting, and porting it to the Wanderbar seemed like a more sensible thing. Also a good proof-of-concept for user-authored sidebars.
Basically, it loads the overworld map from memory and gradually reveals it as you explore; the revealed sections are saved to a local file between sessions. My intention was for it to be a supplement to Zelda 2 randomizer runs, where keeping track of where you’ve been is important but it’s a pain to make maps manually.
I’m labeling this as an alpha version. It’s fully functional as far as I know, but it’s not terribly pretty yet, or very well commented.