I have written a few documents using LaTeX if anyone is having difficulty sleeping:

• lamp.pdf - A beginners guide to setting up the Web technology stack.
• mysql.pdf - A beginners guide to using MySQL.
• py-mysql.pdf - Connecting to MySQL from Python Using mysqlclient MySQL.
• Django.pdf - Installing Django with Python 3 MySQL.
• VimCheat.pdf - A no nonsense crib sheet to Vim.
• BashCheat.pdf - Bash - a command line crib sheet.