DailyNote – one-note-per-day app with local-first encryption

Show HN: DailyNote – one-note-per-day app with local-first encryption

DailyNote – one-note-per-day app with local-first encryption operates in show hn launch.

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Hi HN and Happy New Year!I built DailyNote, a minimalist daily notes app: one note per day, a year-at-a-glance calendar, and local-first storage.The interesting bit is the encryption + sync model: - Notes are always encrypted locally before syncing to Supabase. - A dedicated data key (DEK) encrypts notes; your password only wraps that DEK (KEK). - So when you change your password, it just re-wraps the DEK — no re-encryption of note data. I built the whole project in one day using Claude + Codex with a spec‑driven approach (tight PRD → implementation). It’s React/TypeScript, IndexedDB for local persistence, and optional cloud sync.Demo: https://dailynote.xyz/Repo: https://github.com/katspaugh

Within the show hn launch space, the company focuses on its core offering rather than a broad product line.

Its current recorded stage is Show HN launch.

Website: dailynote.xyz/Repo: