Aris Launcher is one of the best apps to customise your phone by setting the wallpaper, text color, size, and font, keyboard, and even the icon pack!

To run shell commands, use the 'shell' command. It will start a small and easy-to-use interface that allows you to do basic commands such as searching the Web for anything, doing a quick calculation, or using a text or file editor.

To use the app, you just need to input the command you want to use, and the app will do what you request.