At HTW Berlin in Schöneweide for working on tagging and modelling issues of indoor spaces in #OSM. Some of this has proven challenging over the past years as it requires to carefully balance easy mapability and maintainability, the needs of 2D, 3D and tactile rendering, graph- and area-based routing, BIM compatibility, and being able to model all accessibility-relevant properties. Let's see if locking people from all those areas in a room for two days helps :)