kevin.md

I thought sending a board to a factory was like printing a PDF. Then the factory's output changed one LED-and asked me to approve the result.

I built a tiny piano app and found a chord that physically cannot be played on a MacBook keyboard. The bug wasn't in my code-it's soldered into the keyboard, and it's been there for sixty years.

Use PS5, Xbox, Switch, Steam, 8BitDo, and 300+ game controllers as a keyboard, mouse, macro pad, OBS remote, or Anki controller on macOS.

NVIDIA recommends a 200G fabric for clustering DGX Sparks. I made tensor-parallel DeepSeek work over an ordinary 10GbE cable-and measured what the slower link costs.

Local LLM Server exposes Apple's on-device Foundation Models over an OpenAI- and Ollama-compatible HTTP API - point any client library at your phone's LAN address.

Whisper Caption runs OpenAI's Whisper model on-device to caption videos in 90+ languages - karaoke word highlighting, no cloud, no subscription.

Topgolf records where your ball ended up, not how fast you hit it. BaySpeed runs the physics backwards to recover the missing number-now on the App Store.

I dictated the idea one morning and shipped it that afternoon: Scroll Elevator, a menu-bar app that puts jump-to-top/bottom buttons at your cursor when you scroll. Built because running a grid of AI coding agents had me scrolling all day.

The Mac has no universal 'scroll to top' button, and laptops dropped the Home/End keys. Here are the keyboard shortcuts that actually exist - and the tiny utility I built when I got tired of them.

How to use a PlayStation, Xbox, or 8BitDo controller for Anki on Mac - with the prebuilt AnKing community profile in ControllerKeys.