Serenity

Decentralized Applications

End-to-end encrypted, offline-first collaborative notes app using CRDTs (secsync architecture); relay never sees plaintext

Hybrid Community Low capture risk

Details

License Open source
Dev Status Released
Owner Nik Graf / Naisho GmbH (serenity-kit)
Country Austria
Start Year 2019
Stack TypeScript, React Native
Funding NGI, Grant
Last Investigated Mar 10, 2026

Use Case Domains

Communication Group Formation & Governance

Affordances

Consent-based audiences Composable groups

Decentralized Application Attributes

Use Case Category Note-taking + Collaboration
User Interface Type Document-centric
Offline Capabilities Full functionality offline (local-first; secsync designed for offline-first)
Collaboration Features Real-time editing (E2EE), sharing via contacts, cursor awareness
Data Portability Partial (CRDT document data portable; not yet implemented in prototype)
Integration Ecosystem N/A
Prosocial Coherence N/A
Economic Flows N/A
Governance & Decision Making Company-controlled (Naisho GmbH, small team)
Media / Publishing No
Knowledge Management No
Sensemaking No
Project Management No
Data Sovereignty Full (E2E encrypted on device; relay never sees plaintext; user-controlled keys)