Yes. I see that the amethyst client has the ability to tag locations already built in. I would love it if we could just render path files (IIRC, GMX files?) from FOSS tracking apps or even non-FOSS systems like Garmin or the newer Motorola satellite coms/tracking devices, of which I own one for the solo hiking I do as an emergency beacon. 

So, the system would have to be able to read path data, overlay it onto a map (OSM utilization, probably), render an image, then also allow for other media to be attached to pins on the path automatically so people can share pics or comments about a particular spot or even specifically at a particular heading from a particular spot.

There are apps that do this for hiking like FAROUT. But... I'd rather have this on nostr, obviously.