1
Pricing niche products
I recently visited a friend who runs Keycult , a business that designs and sells $500 keyboard kits.
Kevin Lynagh
I’m a designer specializing in user interfaces for complex systems, with clients in renewable energy, weather forecasting, futures trading, and synthetic biology.
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Visit kevinlynagh.com → RSS feedOn Hacker News Jul 2018 – Apr 2026
Tools & Productivity 5Software Engineering 2Hardware & Electronics 2Design & UX 2Startups 1Math & Algorithms 1
2
Why I rewrote my Rust keyboard firmware in Zig: consistency, mastery, and fun
I’ve spent the last year building keyboards , which has included writing firmware for a variety custom circuit boards.
3
Sabotaging projects by overthinking, scope creep, and structural diffing
I’ll be attending Babashka Conf on May 8 and Dutch Clojure Days on May 9. If you’re attending either (or just visiting Amsterdam), drop me a line!
4
A home made PCB stepper motor
The first idea is interesting because it means cheap, precision-manufactured PCBs can be easily transformed into cheap, precise tiny motors.
5
Making Electronic Calipers
Have you ever wished for a 500 Hz, millimeter-precise linear position sensing system? Well you're in luck --- all you need is some circuit board, a basic microcontroller, and a wee bit of maths!
6
Generating Simpson's Paradox with Z3
I’ve been reading Pearl’s Causal Inference in Statistics , and one of the exercises poses this problem:
7
A Relational Spreadsheet
I tried doing an INNER JOIN in Google Sheets and it was so awkward I was compelled to build my own lightweight relational spreadsheet / language / system.
8
Designing an email-only Slack interface
On the design of Stop Slacking , which lets you interact via email with the poor souls trapped in the endless, no-agenda meeting that is Slack.
9
Towards the Cutest Neural Network
I recently needed to use a microcontroller to estimate the pose (translation and orientation) of an object using readings from six different sensors. Since the readings were non-linear and coupled with each other, an explicit analytical solution was out of the question.