Marco Parisi

Decentralized Contact ManagementMeishi is a contact management app built around two principles: data sovereignty and automatic synchronization.Current contact apps have a fundamental flaw: they create static snapshots of dynamic information. When someone changes their email or phone number, you still have the old data. Worse, your information is replicated across countless databases with no update mechanism or revocation capability.Meishi solves this through peer-to-peer synchronization. When you update your contact information, everyone you are connected with receives the update automatically. When someone updates theirs, your address book updates without manual intervention.Privacy implementation: All private contact data syncs P2P with end-to-end encryption via Signal Protocol. No centralized database storing your contacts. Client-server architecture only for optional public profile discovery. You control data access at granular level and can revoke permissions anytime.Target use cases:Freelancers maintaining professional networks without outdated informationSmall businesses needing GDPR/CPRA compliance without enterprise CRM costsPrivacy-conscious users avoiding centralized data honeypotsBusiness model: Freemium for users (backup, advanced sharing, groups). Pay-per-lead API for businesses where users explicitly control data access and can revoke consent. Zero third-party data monetization.Technical goals: P2P sync under 100ms latency, zero-knowledge architecture, mobile-first design.Seeking testers for alpha version launching Q1 2026. Looking for feedback on privacy implementation and user experience.