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What you can do with Simfleet

simfleet is a macOS control plane that runs and tracks parallel React Native work across iOS simulators, Android emulators, Metro ports, and native builds, with a live dashboard and agent device attribution.

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entropyconquers/simfleet on GitHub

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What do you want to do?

4 use cases

  • Run several app branches side by side without port clashes

    Give each branch its own slim device, worktree, and leased Metro port from one dashboard.

    View prompt
    Using the simfleet repo (entropyconquers/simfleet), run `simfleet lane start "$PWD" development debug` inside <path-to-app> and then `simfleet lane launch`. Expected output: a lane with a leased Metro port and the dev client opened on that port. Verify with `simfleet ports` that the leased port appears in the list.

  • Share one native build across agents on JS-only branches

    Cache native builds by fingerprint so many agents reuse one build and environment switches skip native rebuilds.

    View prompt
    Using the simfleet repo (entropyconquers/simfleet), set up the Expo build cache in <path-to-app> and run `simfleet native plan` to inspect the fingerprint. Expected output: a plan that lists the native inputs and whether a cached build exists. Verify that changing only a JavaScript file leaves the native fingerprint unchanged.

  • See which coding agent is using which simulator

    Track Claude Code and Codex device calls per session and claim devices so agents stop colliding.

    View prompt
    Using the simfleet repo (entropyconquers/simfleet), run `simfleet agents` from inside a Claude Code or Codex session in <path-to-app>. Expected output: the live agent sessions and the devices they have touched. Verify that after `simfleet claim <device-id>` the device is listed as held by this session.

  • Test a running app by driving devices in the browser

    Tap, swipe, and type on live iOS and Android screens from one browser wall.

    View prompt
    Using the simfleet repo (entropyconquers/simfleet), start `simfleet serve` in <path-to-app>, then open the dashboard at http://127.0.0.1:8790. Expected output: each booted simulator and emulator shown on the wall with its state. Verify that a tap sent from the dashboard changes the screen on the target device.

How to use Simfleet

  1. Check you have what it needs: A Mac running macOS; Bun 1.1 or newer (https://bun.sh); Xcode for iOS work, plus `brew install mobai-app/tap/simslim baguette watchman`.
  2. Open entropyconquers/simfleet on GitHub and read the README and license.
  3. bun add -g simfleet
  4. cd path/to/your-app
  5. simfleet init
  6. simfleet serve

These steps come from our top use case, Run several app branches side by side without port clashes, which also has a copy-paste agent prompt.

Simfleet alternatives · Best AI repos for Software and DevOps

About this repo

  • Who it is forReact Native developers on macOS who run several branches or coding agents at once and need their simulators, Metro servers, and native builds kept separate.
  • Why it is hot
  • LanguageTypeScript
  • Sourcegithub.com/entropyconquers/simfleet · Back to Hot repos

Requirements

  • A Mac running macOS
  • Bun 1.1 or newer (https://bun.sh)
  • Xcode for iOS work, plus `brew install mobai-app/tap/simslim baguette watchman`
  • Android SDK with platform-tools and emulator for Android work, plus `brew tap kdbhalala/avdslim https://github.com/kdbhalala/avdslim.git && brew install avdslim scrcpy`
  • A React Native or Expo app with a Git repository
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Questions about Simfleet

What is Simfleet?

simfleet is a macOS control plane that runs and tracks parallel React Native work across iOS simulators, Android emulators, Metro ports, and native builds, with a live dashboard and agent device attribution. It is an open-source project on GitHub: https://github.com/entropyconquers/simfleet.

Who is Simfleet for?

React Native developers on macOS who run several branches or coding agents at once and need their simulators, Metro servers, and native builds kept separate.

What can I do with Simfleet?

4 use cases so far, for example: Run several app branches side by side without port clashes; Share one native build across agents on JS-only branches; See which coding agent is using which simulator. Each has steps and a copy-paste agent prompt.

What do I need to run Simfleet?

A Mac running macOS; Bun 1.1 or newer (https://bun.sh); Xcode for iOS work, plus `brew install mobai-app/tap/simslim baguette watchman`; Android SDK with platform-tools and emulator for Android work, plus `brew tap kdbhalala/avdslim https://github.com/kdbhalala/avdslim.git && brew install avdslim scrcpy`.

What are alternatives to Simfleet?

Other hot AI repos in Software and DevOps: Harness2, iFixAi, Orca, Diagram Design, AI Memory.

Is Simfleet safe to run?

Deduped does not own, audit or vouch for it. Read the README and license, run it on your own systems first and review every command before you run it.