NexDo 🌱

A local-first to-do app with a forgiving archive and a Chrome new-tab surface — powered by a database engine written from scratch in Go.

No server. No login. Works offline. Syncs peer-to-peer.

Why

The to-do app is the surface; the engineering is the point. NexDo's core is a hand-written storage engine (an append-only log), a CRDT layer for conflict-free merges, and peer-to-peer sync — the machinery that usually hides inside Postgres or Firebase. Here it's built from the ground up.

The idea in one line

NexDo doesn't store your task list — it stores an append-only log of changes (add / complete / archive / restore). Your list, and your archive, are just different reads of that log. Durability, undo, the archive, and conflict-free sync all fall out of that one idea.

Roadmap

• Running Go server
• Storage engine (durable, crash-safe log)
• Web UI + live updates
• Indexing & queries
• CRDT layer
• Peer-to-peer sync
• Chrome new-tab extension

Run it

go run ./cmd/nexdo
# then open http://localhost:7777

Layout

cmd/nexdo/   entrypoint — starts the engine + server
internal/    the engine: storage, crdt, sync, server
web/         the browser UI (todo app + new-tab page)

Tech

Pure Go standard library where possible. No external database — NexDo is the database.