Disable the onboard speaker to prevent it buzzing whilst you're working.
Install a much later (faster) version of Firefox in Debian 9.
Configure Emerald to maximise a window when you double-click the title bar.
Instructions for getting Compiz and Emerald working in Debian 9 Mate.
My base script to run after installing Debian 9 Mate.
Install Nvidia drivers on Debian
If your sound stops working, and you're using Seafile, read this.
Install the Sublime text editor in Debian
Install the Arc icons.
Install the Seafile client GUI on Debian 9
Information about performance of Qcow2 disk images.
Get started with using KVM on Ubuntu 18.04 with the help of this PHP CLI tool.