OS X

• Install the Homebrew package manager: https://brew.sh/.

Windows

• Install the Windows Subsystem for Linux (WSL). https://docs.microsoft.com/en-us/windows/wsl/about.

Android SDK

• Install Android Studio and SDK tools: https://developer.android.com/studio.
• Install SDKMAN for managing Java versions: https://sdkman.io/.

React Native

• Install nvm for managing Node versions: https://github.com/nvm-sh/nvm.
• Install yarn for managing Node packages: https://yarnpkg.com/lang/en/.
• Install React Native: https://facebook.github.io/react-native/docs/getting-started. Follow the steps listed under "Building Projects with Native Code" and set Target OS as "Android".