Local-first meeting notetaker. On-device transcription, no stored audio, E2E encrypted sync (hellonod.app)

Nod has introduced a local-first AI meeting notetaker that prioritizes user privacy and security by enabling on-device transcription without storing audio files. The technology turns conversations into audio, transcripts, notes, and encryption keys, ensuring that only the encrypted transcript and notes leave the device. The audio is retained in memory only during processing, and each meeting is stored as an encrypted file using AES-256-GCM. Importantly, the encryption keys are managed by the device's keychain and are not transmitted during syncing, making unauthorized access nearly impossible. This innovation is significant for the AI/ML community as it exemplifies a growing trend towards data privacy and security, addressing concerns over cloud storage vulnerabilities. Nod's unique approach also utilizes Automerge for syncing documents across devices without central authority, enabling collaborative editing while maintaining data integrity. As a multi-platform application (available on macOS, Windows, and Linux), with plans for mobile compatibility, Nod sets a new standard for privacy-respecting AI tools, potentially reshaping how teams handle sensitive information during virtual meetings.