CDNs

Preact

• https://unpkg.com/htm@3.0.4/preact/standalone.module.js
• https://esm.sh/htm/preact/standalone

secp256k1

• https://cdn.jsdelivr.net/npm/@noble/secp256k1@1.7.1/+esm

rdflib

• https://unpkg.com/rdflib@2.2.35/dist/rdflib.min.js

nostr-tools

• import nostrTools from 'https://cdn.jsdelivr.net/npm/nostr-tools@2.8.0/+esm'
• https://unpkg.com/nostr-tools/lib/nostr.bundle.js