Parallel of rust/TUTORIAL.md (d10dfb9), adapted for the Node.js
implementation. Same end-state for the reader: from "I have a nostr
nsec" to "I have a verified, published sigchain" in ~15 minutes.
Node-specific adaptations:
• Install (Node 22+ note for the built-in WebSocket the nostr
channel needs, npm 9+ workspaces, optional `npm link` for global
`kez` instead of `npm run cli --`).
• Every command uses `npm run cli --` to match the README's
existing convention; explicit "-- swallowed flags" callout.
• New section 8 "Programmatic use" — short snippet showing how to
sign + verify via @kez/core + @kez/channels for embedding in a
Node app. Cross-checked against the real exports
(newClaimPayload(subject, primary, date), signClaim(payload,
signer), await defaultRegistry(), registry.verify(...)).
• Cross-implementation interop callout: sign in Node, verify in
Rust (wire-compatible by design).
• Common-confusions FAQ gets one extra entry — "Is the Node version
slower than Rust?" (answer: I/O-bound on channels, both fine for
interactive use; Rust faster only for batch sigchain work).
• Troubleshooting adds "WebSocket is not defined → upgrade Node" for
the nostr channel.
README now points to TUTORIAL.md as the on-ramp, matching the Rust
README's structure.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
