Phew, Grok Build is really thorough, pretty incredible.

Relay feature for PasteLocal is done, pushing to Github now.

And if you want to know what this adds, here's a bit more about it, this is a feature I really wanted in there, and honestly didn't really expect to have done this week.

• Per-peer E2E encryption: clipboard data is encrypted individually for each paired device using X25519 + HKDF + AES-GCM (no plaintext ever leaves the client)
• Durable persistence: relay state is now stored in an atomic state.json with proper TTL handling and compaction. Pending clips survive relay-server restarts
• Safe compaction: fixed unsafe map mutation during expiration/compaction that could cause data loss or undefined behavior
• Full bidirectional CLI: new commands: pastelocal relay send, inbox, fetch, and status, plus pastelocal-remote --relay --peer --send
• Auto-sync: when watch.enabled + relay.auto_upload are on, meaningful clipboard changes are automatically pushed to paired devices
• Improved DX: doctor checks are now only shown when relay is enabled, and the TUI shows basic relay status
• Multiple review cycles: went through full implement → review → fix → re-review (effort 4), plus a final targeted regression fix round

Try it out and please send any and all feedback!