- OSM2World (osm2world.org) - OpenStreetMap in 3D!
- OSM2World Maps (maps.osm2world.org) - OpenStreetMap in 3D ... as a tile-based slippy map!
- GraphView - a visual routing graph in JOSM
- TTTBot - keeps a lot of tables in this wiki current
- member of EWG and CWG
- Google Summer of Code co-admin and mentor since 2015
- member of the FOSSGIS 2017 local team
- master thesis on merging OSM data with SRTM elevations for 3D rendering
- bachelor thesis about OSM routing graph visualization as implemented by GraphView (German)
- blog posts on blog.openstreetmap.de (German)
- various presentations at FOSSGIS and other conferences