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serifsadion Ask HN: What are you working on? (November 2026)

GeoPeek, a small macOS Quick Look extension for GeoJSON. I work with geospatial data and wanted to press Space on a .geojson in Finder and see a map instead of raw JSON. It also shows an attribute table and basic stats. https://github.com/serifsadi/geopeek

serifsadion Launch HN: Momentic (YC W24) – Agents that catch bugs by using your app

Most of the thread is about web, so a mobile question: do the agents run on real devices, or only simulators and emulators? A lot of the bugs I chase only show up on specific Android OEM builds or mid-range phones.

serifsadion Show HN: Warsaw in voxels – An interactive 3D map of the city centre

The seasonal trees from the city database are a great touch. The buildings reminded me a bit of 3DCityDB. Did you look at CityGML or 3DCityDB at all, or go straight from OSM and LiDAR?