Install program on Ubuntu via Zip file

https://askubuntu.com/questions/421389/where-to-unpack-the-android-studio-file

Start local PHP server on Mac

Open a terminal, change to directory with source and type php -S localhost:8000.

Connect ADB over Wifi on Ubuntu

Connect the device per USB. Write adb tcpip 5555 into a terminal. Find out the IP address of the device within the Wifi network. Type adb connect [IP-address]:5555 into a terminal.

Add public GPG key for apt-get

gpg --keyserver keyserver.ubuntu.com --recv E084DAB9
gpg --export --armor E084DAB9 | sudo apt-key add - && sudo apt-get update

PHPMyAdmin Alternative

Download adminer.php from https://www.adminer.org/ and copy into your webspace.