Not Every Curve Belongs in Sand
Another CrunchLabs kit took over an evening: a sand table that drags a ball through sand on a polar arm. I added a few parametric math patterns, and the inte...
Recent Posts
I Taught My Label Maker to Draw
I live in Ruby, Elixir and Emacs. A CrunchLabs label maker landed on my desk, I opened the firmware to fix two small annoyances, and it turned into a pocket ...
I Built a Roblox Game Just to Try
On a whim I tried building a Roblox game in Luau, far from my usual Ruby, Elixir and Emacs, and found a real, typed, test-driven codebase hiding behind the t...
Writing a DSL in Ruby
An internal DSL is just Ruby that reads like a little language of its own. RSpec, Rake and Sinatra are all built this way. Here’s how to build one yourself, ...
Straightforward Auth in Phoenix, 2026 Edition
Back in 2016 I left myself a note: for simple auth in Phoenix, skip Pow and hand-roll it like the book shows. Ten years later the honest answer is different....