While Grid and Flex revolutionized web design with their means of accurately laying out content with fewer hacks, they're mechanisms that can be tricky to get your head around. If you're feeling lost, try these excellent tutorials and hands-on sandbox apps.

Git blame is useful, but it only tells you about line-by-line authorship. When you want a comprehensive author-based overview of your open-source projects, try this tool instead.

If you need to know how fast it runs, Hyperfine will tell you. This user-friendly, versatile tool available on Linux takes all the effort out of benchmarking.

Missing functionality can be frustrating when you’re used to a particular workflow, like creating new files without having to open the associated app. Using the Shortcuts macOS app, you can fill in the blanks.

Ever heard of Hello World? This sample code is a programmer’s rite of passage, but what does it mean and why do we use it? Discover the program’s history and see how it reveals various language features.

Global variables are divisive: an invaluable shortcut or a dangerous example of sloppy code? Let's talk about what they do, what they’re good for, and why you should be extra careful using them.

I recently found myself wondering how big various man pages are. Some are so long, they seem impenetrable, while others have very little detail at all. What can their size tell us about the Linux or macOS system they are on?

Spending all day tapping those arrow keys in the terminal looking for previous commands? We've all been there, but your experience can be better if you use this handy utility.