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For Expo development builds

Keep every dev build.

DevHub keeps the development builds of all your Expo projects on your machine, finds the build that matches your code, and installs it on a simulator, an emulator, or a phone. You build again only when the native code changes.

Get startedRead the docs
~/trail-app
$ devhub match
Project: /Users/me/trail-app (@expo/fingerprint 0.20.13)

android  3f2a0c9e1b7d4a6f8e2c5b1d9a7f3e6c4b8d2a1f
  ID        PLATFORM  PROFILE      VERSION  COMMIT   CREATED     EAS EXPIRY
  5d1c9a2e  android   development  1.4.0    8b1f2c3  2026-10-12  2026-11-11

ios  9c1b7e4d2a6f0c3e8b5d1a7f4e2c9b6d3a8f1e5c
  No stored build matches this fingerprint.

$ devhub install 5d1c
Installing the build 5d1c9a2e-4b7f-4c1a-9e3d-2f6a8b0c1d2e on Pixel_8_API_35 (emulator-5554).
Installed the build 5d1c9a2e-4b7f-4c1a-9e3d-2f6a8b0c1d2e on Pixel_8_API_35 (emulator-5554).
9Commands
3Host systems
0Telemetry
MITLicensed
Why DevHub

A native build only when the native code changes.

Keep every EAS build

devhub sync downloads each dev client build before EAS deletes it. A daily sync keeps the builds of all your projects.

Match by fingerprint

devhub match runs the @expo/fingerprint of your project. A stored build with the same hash runs your code, so you do not build again.

Install in one command

devhub install puts a stored build on an emulator, an Android phone, or an iOS simulator. When adb refuses, DevHub tells you why and how to fix it.

Local builds too

As the Expo build cache provider, DevHub stores each npx expo run build, and installs it again when the native code did not change.

A page for all of it

devhub ui shows your builds and devices in the browser, with an install button and a sync button. It listens on 127.0.0.1 only.

Made for scripts and agents

Each command has --json and clear exit codes. llms.txt gives an AI agent the exact API of the installed version.

How it works

Three commands. No new build.

01

Sync

Download the dev client builds of your project from EAS, before EAS deletes them.

devhub sync
02

Match

Calculate the native fingerprint of your code, and find the stored builds that run it.

devhub match
03

Install

Install the build on an emulator, a phone, or a simulator. Then start Metro.

devhub install 5d1c
Local builds

Keep your local builds too.

Add DevHub as the Expo build cache provider. Each npx expo run:android or run:ios stores its build. The next run with the same native code installs the stored build, and Gradle or Xcode does not run.

Set up the cache provider
app.json
{
  "expo": {
    "buildCacheProvider": {
      "plugin": "@rootnative/devhub/cache-provider"
    }
  }
}

Stop building the same app.

Install the CLI, run one sync, and keep each dev build from now on.

Quick startInstallation