The simpler media website CMS
Thats only a info to all zenPhoto coders and users:
I have coded a OpenStreetMap view for single image webpage with only one pointer and for a full size single album webpage with pointers and clusters for all published images in OpenLayers 5.3.0. (OL 6.0.x - 6.1.1 [latest version today] don't work with IE and older Android).
Sadly i don't have time and know to code a plugin with this. So far it's only a mod, for my ZenPhoto webpage.
Some time ago I had coded a all images map in Leaflet. I can not recommend that anymore. It is not well coded. It's not lightweight.
If someone is interested, please wrote it here! I'll occasionally drop by here. Coders for coding a plugin are welcome.