UNVT Portable, a Raspberry Pi server, streams PMTiles from a microSD card (up to 512 GB) without internet or database. Preloaded with OSM Planet, global DEM, and thematic layers, it’s benchmarked against cloud solutions for latency, throughput, energy, and storage efficiency, proving effective for UN field operations.

Since 2020, Japan’s MLIT has led Project PLATEAU, releasing 3D city models. Despite efforts, only 62% of buildings are mapped. OSM Japan is using the "citygml-osm" converter. This presentation proposes a one-year roadmap to complete building mapping, optimizing data imports, and community collaboration.