All hack nights
SHN #001Advanced
Local-First Apps
February 1, 2025
CRDTs, SQLite, PGlite
42 builders
18 projects submitted
Best Project of the Night
Best Project
OfflineNotes
Akhil R, Meera K
A fully offline-first notes app with real-time sync when connectivity is restored. Uses CRDTs for conflict-free merging.
PGliteReactCRDTs
About This Theme
Local-first software works offline, syncs when connected, and keeps your data on your device. This hack night explored CRDTs, embedded databases like PGlite and SQLite-Wasm, and patterns for building apps that don't depend on a server to function.
Mentors
Resources
All Submitted Projects (6)
LocalCart
by Divya S
Shopping cart that works without internet, syncs when online.
SQLiteVue.jsPWA
PeerDocs
Rohan M, Arjun T
Peer-to-peer collaborative document editor, no server needed.
Y.jsNext.jsWebRTC
OfflineBoard
by Priya V
Kanban board that persists locally and syncs across tabs.
IndexedDBCanvasTypeScript
SyncWeather
by Arun J
Weather app that caches forecasts for offline access.
Service WorkerCache APIReact
LocalLedger
Fatima N, Sanjay P
Personal finance tracker built entirely local-first.
SQLiteElectronChart.js