**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.
  7. /opt/android-sdk/tools/android
      This command launch `Android SDK`. You can make fixed in your dock application (for example `Plank`), or create a `desktop-launcher`.
  8. 
  
  8. 

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

**Optional Step:** Upgrade watchers limit
  1. echo "fs.inotify.max_user_watches=524288" >> /etc/sysctl.conf 
      **Note:** Use this command in super user session.
  2. sudo sysctl -p /etc/sysctl.conf
      Make this active without reboot session.
  3.