**First step:** Install Android SDK
  1. yaourt -S android-sdk android-sdk-platform-tools android-sdk-build-tools
      **Note:** Maybe you'll have problems with the lasta package: ` ncurses5-compat-libs`. In order to avoid this problem you have to use this command: `gpg --recv-keys F7E48EDB`. You can find clarification (here)[https://aur.archlinux.org/packages/ncurses5-compat-libs/?comments=all].
  2. yaourt -S genymotion
      **Note:** You'll need install `virtual-box` and his modules, `yaourt` will make for you but you need choos between ArchLinux host modules or DKMS host modules.
  3. echo -e "vboxdrv\nvboxnetflt\nvboxnetadp\nvboxpci" > /etc/modules-load.d/virtualbox.conf
      **Note:** You need do this with super user because need super user permissions and with `sudo`, for us at least, doesn't work.
  4. sudo modprobe vboxdrv vboxnetadp vboxnetflt
      Activate for current session.
  5. sudo chmod -R 777 /opt/android-sdk
      Give permisions over Android SDK folders.
  6. Restart
      Is needed by `Genymotion` for detect `VirtualBox` modules.  
      *NOTE:* You need install Java JDK for user Android SDK.

**Second step:**
  1. npm install -g react-native-cli
    *Note:* You need have installed node and npm for use `React Native`.