Johan Alphonso Braga
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Systems / 2026 / Runs natively

Emergance

Offline-first emergency dispatch: an Android SOS/driver app, an Electron dispatch desk with offline maps, and a web mirror, all of them speaking a shared protobuf schema.

Emergance

01

The problem

Emergency software fails exactly when the network does.

02

How I approached it

Offline-first on every surface: local SQLite and Room stores, MapLibre tiles held locally, and one protobuf schema shared across Kotlin, Node and TypeScript so a message written offline still parses everywhere once it syncs.

03

The outcome

Three shipped APKs and a dispatch desk that keeps working with the network down.

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