nostr-git-sync

Decentralized git sync daemon using Nostr (NIP-34).

Overview

┌─────────────────┐     ┌─────────────────┐     ┌─────────────────┐
│   Publisher     │     │  Nostr Relays   │     │   Subscribers   │
│  (git push)     │────▶│  (30618 events) │────▶│  (git pull)     │
└─────────────────┘     └─────────────────┘     └─────────────────┘

When a publisher pushes to a repo, they broadcast a NIP-34 kind:30618 event announcing the new state. Subscribers watching for that repo automatically pull the update.

Key Features

• Unified identity: Same secp256k1 key for Nostr, Bitcoin (Blocktrails), and ACLs
• NIP-34 compatible: Uses standard kind:30618 repo state events
• ACL-based trust: Only pull from did:nostr:npub... keys you trust
• Optional Blocktrails verification: Require Bitcoin-anchored commits

Install

npm install
cp repos.json.example repos.json
# Edit repos.json with your config

Usage

Subscriber (daemon)

# Start watching for updates
npm start

# Or with custom config
node bin/nostr-git-sync.js /path/to/repos.json

Publisher (after git push)

# Announce new repo state
node src/publish.js <nsec> <repo-id> [repo-path]

# Example
node src/publish.js nsec1... JavaScriptSolidServer .

Configuration

{
  "relays": ["wss://relay.damus.io", "wss://nos.lol"],
  "repos": {
    "JavaScriptSolidServer": {
      "path": "/var/www/jss",
      "cloneUrl": "https://github.com/...",
      "branch": "gh-pages",
      "trusted": ["did:nostr:npub1..."],
      "requireAnchor": false,
      "postSync": "npm install"
    }
  }
}

Field	Description
path	Local path to git repo
cloneUrl	Git remote URL (for future clone support)
branch	Only sync this branch (optional)
trusted	Array of did:nostr:npub... keys allowed to trigger sync
requireAnchor	Require Blocktrails verification before sync
postSync	Command to run after successful sync

NIP-34 Event Structure

Kind 30618: Repository State

{
  "kind": 30618,
  "pubkey": "<publisher-hex>",
  "tags": [
    ["d", "JavaScriptSolidServer"],
    ["refs/heads/gh-pages", "7a356be..."]
  ],
  "content": ""
}

Identity Model

The same secp256k1 keypair is used across:

• Nostr: Signs 30618 events (npub1...)
• Bitcoin: Controls UTXOs via Blocktrails key tweaking
• ACL: did:nostr:npub... format in trusted list

Roadmap

• 30617 discovery (fetch clone URLs from Nostr)
• Blocktrails anchor verification
• Git hook for auto-publish
• Systemd service file
• Multi-branch support

License

MIT