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Building a Local-First Note-Taking App: Sync Without a Server

A Local-First software engineering project tutorial on building a serverless note-taking app using IndexedDB, WebRTC P2P sync, and Yjs CRDTs in 2026.

Sachin Sharma
Sachin SharmaCreator
Aug 1, 2026
4 min read
Building a Local-First Note-Taking App: Sync Without a Server
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A Local-First software engineering project tutorial on building a serverless note-taking app using IndexedDB, WebRTC P2P sync, and Yjs CRDTs in 2026.

Local-FirstCRDTIndexedDBWebRTCYjsTypeScript
Sachin Sharma

Sachin Sharma

Software Developer & Mobile Engineer

Building digital experiences at the intersection of design and code. Sharing weekly insights on engineering, productivity, and the future of tech.

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