Python -O won’t magically make every script faster, but in the right workloads it’s a free win—here’s how to test it safely.

At one time or another, you’ve probably been guilty of heading out the door without doing a running warmup. And we get it: Busy runners don’t always have a ton of extra time in the day for elaborate ...

Enable the Linux terminal on any Android device, and you can create or practice your bash scripting on the go.