[KronisLV]

What a cool idea! Sadly, the Mapbox vector maps really struggle on my mid/low range Android phone (Firefox as the browser).

I've actually briefly looked into it before, but I've no idea why vector maps in particular are so bad, yet everyone still praises them a lot vs regular tiled raster maps: https://www.youtube.com/watch?v=A-IRtBGO9rM

Not to detract from the cool thing you've made, don't mind my musings.