[MattBlissett]

I use https://openmaptiles.org/ at work. For normal, Web Mercator maps we just use the free download of the whole world, available at [1]. Running the OpenMapTiles tools to generate a current tileset for a particular region is straightforward, but if you need all of Europe you will need some decent compute capacity. Unless everything can be done on a single computer, you'll also need to implement some missing pieces, e.g. a message system to distribute the rendering across your computers.

[1] https://data.maptiler.com/downloads/dataset/osm/

[adevx]

Thanks, I looked into this but commercial use is prohibited for the free download which makes it a no go for my use case.