Apple Silicon setup - leotm/react-native-template-new-architecture GitHub Wiki

New machine

  • beta.apple.com > Guide for Beta Software > macOS
  • brew
    • adds eval "$(/opt/homebrew/bin/brew shellenv)" to shell config file
      • i.e. shell setup prepending $HOMEBREW_PREFIX/{bin,sbin} to $PATH before
        • /usr/local/bin
        • /System/Cryptexes/App/usr/bin
        • /usr/{bin,sbin}
        • /{bin,sbin}
        • /var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin
        • /var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin
        • /var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin
        • /Library/Apple/usr/bin

    You are using macOS 26.0. We do not provide support for this pre-release version. This installation may not succeed. After installation, you will encounter build failures with some formulae. Please create pull requests instead of asking for help on Homebrew's GitHub, Twitter or any other official channels. You are responsible for resolving any issues you experience while you are running this pre-release version.

  • choose your shell e.g.
    • brew install zsh
    • echo "$(brew --prefix)/bin/zsh" | sudo tee -a /etc/shells
    • chsh -s /opt/homebrew/bin/zsh (or via GUI System Settings)
    • choose framework or plugin manager
  • choose your terminal
  • choose your window manager
  • Xcode (stable/rc/beta) ⚠️🔥 most Homebrew formulae need a compiler, a few need a full Xcode install
    • xcodebuild -version && lipo -archs $(which xcodebuild)
    • sudo xcode-select --switch /Applications/Xcode-beta.app
    • xcode-select --install (CLI tools)
    • sudo xcodebuild -license accept
    • xcodebuild -runFirstLaunch
    • xcodebuild -downloadPlatform iOS
      • iOS 26.1 Simulator (23B5059e) (arm64): 8.72 GB
  • android-studio-preview@canary ⚠️🔥
    • android-studio-2025.1.4.4-mac_arm.dmg (1.43GB)
    • if boot fails, revert/downgrade to prev canary
  • choose your Node version manager
  • choose your package manager
  • Setting up the development environment @next ⚠️🔥 per OS
    • brew install --cask zulu ⚠️🔥
      • open /opt/homebrew/Caskroom/zulu/<ver>,<ver> install JDK
    • rbenv
  • choose your AI CLI agent
+
  • night shift / (flux)
  • vpn
  • github
  • jenv e.g.
    • jenv add /Library/Java/JavaVirtualMachines/zulu-25.jdk/Contents/Home
    • jenv versions
  • docker (requires macOS Rosetta 2 for Intel emu)
  • act
    • act --container-architecture linux/amd64 -l
    • act --container-architecture linux/amd64 -P ubuntu-latest=catthehacker/ubuntu:js-latest -j test
  • visual-studio-code@insiders ⚠️🔥
    • code-insiders
++
  • brave-browser@nightly ⚠️🔥
    • open -a 'Brave Browser Nightly'
  • ccache
  • negative
  • fastlane
  • scrcpy / vysor
  • OpenMTP/LocalSend/MacDroid
    • brew install --cask <openmtp/localsend/macdroid>
    • device: Settings>About>BuildNo (tap 7x)
    • device: Settings>System>DevOps>USBdebugging
    • adb devices

Erasing

> uname -v # M2 Pro
# Darwin Kernel Version 25.0.0: Thu Aug 14 22:03:32 PDT 2025; root:xnu-12377.1.8~5/RELEASE_ARM64_T6020
# WTF is XNU? https://github.com/apple-oss-distributions/xnu

> sw_vers
# ProductName:		macOS
# ProductVersion:		26.0
# BuildVersion:		25A5349a
# Default bins
ls -l /usr/bin /bin /usr/sbin /sbin /usr/libexec
# Default $PATH
/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin
# User login items
sfltool dumpbtm # SharedFileList BackgroundTaskManagement

# /Library/Launch{Daemons,Agents}
# /System/Library/Launch{Daemons,Agents}

npx clear-npx-cache nb

adb reverse tcp:8081 tcp:8081 Metro <-> Android

brew update && brew outdated --greedy && brew upgrade --greedy && brew cleanup 🔥

whereis ignores $PATH

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