I know this isn’t core to your project (which looks very creative and interesting), and I don’t have a strong opinion on this, but I want to throw it out there to get some thoughts:

Something I don’t like about “no build system, just use this one CDN script” is that:

1. I now depend on two servers for my application.

2. It represents a worst case: you must ship and download the entire library even if I could tree shake most of it at build time.