I'm a little annoyed for the fact that the map shows South America and avoids showing the Argentina label because it overflows but doesn't give a fuck about Chile and its 2mm of width.
It uses PMTiles… Range requests are only supported on S3 directly. If you want to use a custom domain, edge level caching etc. you‘ll need to use a CDN like CloudFront
Yeah Protonmaps is awesome, I’ve been very happy with them. Dirt cheap and simple. After getting hit with a couple hundred dollars (yes, not much, but it was a side project) with Google Maps I went looking for alternatives and found protonmaps, I haven’t looked back.