Here is some JWT minting and parsing you can run in the browser https://observab...

Here is some JWT minting and parsing you can run in the browser https://observablehq.com/@tomlarkworthy/firebase-admin ported from MIT licensed firebase-admin Github repo.

This is a WIP but its a full on Identity Provider implemented the browser it a literate programming env! https://observablehq.com/@endpointservices/auth