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let's install Docker and Docker Compose on vagrant virtual machine(guest system) by Ansible Playbook.

let's try to use Ansible Playbook to install server programs and to configure the server.

make the environment can be used Ansible by installing Ansible on virtual machine(guest system) created by Vagrant

let's analyze the app more detail using react-native-firebase.

let's see how to install virtualbox, vagrant to create virtual machine in virtual environment and how to usage vagrant to create virtual machine.

let's see how to change the simulator on iOS when we test RN(react native) on iOS.

introduce how to build and test RN(react native) project on Android device.

let's test RN(react native) project on Android devices

let's use react-native-firebase library to display Google Admob.

use last modified date of the file to generate sitemap.xml

let's analyze RN(react native) app using Google Analytics.

let's see what we need to register iOS App Store.