[Doctor_Fegg]

This looks really promising, particularly the ability to switch styles on the fly. It could perhaps work as an onramp to get an app out there before switching to something custom-built as traffic builds. I'm tempted.

(Declaration of interest: I invented MapCSS, the styling language which this uses.)

[molind]

Glad, you like it. And thanks for MapCSS. ;)

[Doctor_Fegg]

Out of interest, what sort of storage are you using for the vector data? Is it OSM PBF, MapBox vector tiles, or something custom?

[molind]

It's custom msgpack based tile format + sqlite.