As the title says, neomap is integrated into Neo4j Desktop. It automatically connects to the active graph and from there you can choose the nodes you want to visualize and they will be displayed as location markers (with optional tooltips) or heatmap (using leaflet for now).
Check the demonstration to understand how it works https://devpost.com/software/neomap-m4xcju
Documentation is available on the wiki: https://github.com/stellasia/neomap/wiki
Code is on github: https://github.com/stellasia/neomap/ and already contains a few enhancement proposals in the issue section, feel free to contribute by picking any of these (or creating new ones ;-) )