Some time far in future, maybe add Indoor mode. The data is already there, special browser can display it.

Data fetching:

• we would probably need our own tile processing for the whole world - perhaps just informing that there is a indoor feature, and details could be obtained from overpass

Examples:

• https://wiki.openstreetmap.org/wiki/Indoor_Mapping
• https://wiki.openstreetmap.org/wiki/Indoor_Mapping#Apps
• https://satoshi7190.github.io/Shinjuku-indoor-threejs-demo/
• https://github.com/zbycz/thesis