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.

Fix the “Cannot connect to Docker daemon” error with simple checks, context fixes, and permission updates to get Docker running smoothly.

When the IBM PC was new, I served as the president of the San Francisco PC User Group for three years. That’s how I met PCMag’s editorial team, who brought me on board in 1986. In the years since that ...