Borg vs Restic vs Kopia: a real benchmark on a 200 GB nightly backup over a 100 Mbps uplink

Western Digital 4TB hard drive seated in a desktop docking station — photo by Alphaen on Pexels

Every “best backup tool” comparison on the internet eventually devolves into a feature-matrix between Borg, Restic, and Kopia, and concludes with “they’re all good, pick one.” That’s true, technically, but it doesn’t help when you’re staring at a 200 GB …

PF firewall on macOS: writing a tiny pf.conf to block outbound traffic from one specific app and ignore everything else

You installed a beta of some app. It’s slow, the UI’s weird, and Activity Monitor shows it making outbound network calls every two seconds — telemetry probably, or analytics, or who-knows-what. You’d uninstall it but you actually need the app …