With its continued focus on education, Google has launched Oppia. The Open Source project is a free educational tool that lets anyone create online educational activities through the web interface. Interactivity is its strong suit.
Don’t waste money on software for personal use! Not only do free alternatives exist, they most likely offer all the features you need and may be easier and safer to use.
Did you know that not all open source licenses are the same?
The AMD proprietary driver on Linux is fast but buggy, and the open source driver has now become awesome