Blog
Notes on Mac software, privacy, networks, and the craft of building tools.
July 9, 2026
- Why a firewall should fail open, not closed
There’s a quiet design decision buried in every outbound firewall: what happens when the rule engine itself isn’t available? The lazy answer is to block everything until the daemon is back. The humane answer — and the one the go…
July 3, 2026
- The menu bar is the best real estate on the Mac
The best Mac utilities understand something about attention: the menu bar is prime real estate precisely because it’s ambient. A good menu bar tool is glanceable when you want it and invisible when you don’t. It never demands a …
June 26, 2026
- No telemetry is a feature, not a sacrifice
There’s a widespread assumption in software that you need analytics to build good products — that without a firehose of usage data you’re flying blind. We think that’s backwards for the kind of tools we make. When yo…