Hi, author here, I just noticed that Baremaps was submitted to HN. Our demo runs on PostGIS, and I'm surprised it's holding up under the load. I'm happy to answer questions.

Here is the fullscreen demonstration for those who are interested. https://demo.baremaps.com/

If you get a chance, it would be neat to see a brief summary article added to your website that talks about how much traffic and how Baremaps + PostGIS handled it. Info like that can be hard to come by when evaluating GIS frameworks and is really helpful!