The best systems programming books focus on both theory and hands-on practice, making tough topics easier to grasp. They ...

Build first, understand later.

I’ve spent the last few months doing something I probably should’ve done sooner: testing ChatGPT, Gemini, and Claude side by ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Peloton bikes are best ...