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Short reads about working faster on macOS.

Shortcuts you didn't know existed, workflows you'll want to copy, and a few opinions about Mac apps along the way.

Apr 7, 2026

RGB isn't enough: HSL, CMYK, and OKLCH color notations

RGB is the screen's language, but it's awkward for humans. From HSL that changes 'a bit brighter' in one move, to CMYK pressed in ink, to OKLCH tuned to human eyes — the color notations designers actually use.

12 min read
Apr 5, 2026

How computers make color: RGB, HEX, and binary

Where does #FF5733 in a design spec actually come from? This post unpacks why RGB's three channels run from 0 to 255, how 8-bit binary produces 256 values, and how RGB gets shortened into HEX notation.

6 min read
Apr 3, 2026

fn key shortcuts on Mac that almost nobody knows

A collection of macOS shortcuts you can trigger from the fn key — Dock, Mission Control, Quick Note, Notification Center, Control Center, full screen, show desktop, Page Up/Down, and more.

6 min read
Apr 1, 2026

Why I built fns: I'm addicted to shortcuts.

In the AI era, shortcuts and productivity tools matter more than ever. But the prime shortcut slots are already claimed by big tech — and the fn key was sitting empty. So I built fns.

7 min read