Go ahead and open up a terminal window and install some more packages:
sudo apt-get install synaptic apache2 apache2-mpm-itk php5 php5-curl php5-dev php5-intl php5-mcrypt php5-mysql php5-sqlite php5-xdebug mysql-server phpmyadmin git ssh
You'll be prompted to enter a mysql root password, and phpmyadmin administrator password. Do Not Leave Them Blank! When you are finished, you will be running a full lamp stack on your machine, and it will be accessible from any machine on your local network, including the open wifi at your coffee shop.