Decide if we render ourself the tiles

[kelson42]

... like in the current code base or download the pre-rendered tiles, for example Wikimedia maps?

This is one a first things to clarify.

[benoit74]

Opened https://phabricator.wikimedia.org/T416374 to ask questions over there

[benoit74]

For now we will not render tiles ourselves but use vector tiles from openfreemap (see #13) which have the big upside of being downloadable as a single file (rather than millions of queries to Wikimedia maps, which in addition are raster tiles while we should prefer vector tiles).