I bought a set of golf clubs and needed a diagram
Bought a Callaway Edge at Costco last week. Ten clubs, no bag. I didn’t know what a hybrid was, so I made a loft diagram. Irons step about 4°. PW to SW is about 12°. That’s the hol…
Blog
Thoughts, notes, and documentation
Reconciling a construction proposal that grew three times
We needed a retaining wall built. It started with a budgetary number, the kind you get early to find out whether a project is a project at all. By the time a formal contract arrive…
The low point, not the total
Every month for years I opened the same spreadsheet to answer one question: how much stock do I have to sell to cover the bills? Sell around the 27th, wait for settlement, pay the …
A Garmin GNS 430 you can fly in a browser tab
I needed GNS 430 practice without renting a plane by the hour. The box is GPS, nav radio and comm radio in one unit: a 240×128 pixel screen, buttons, concentric knobs. Muscle memor…
How an eCVT shifts an e-bike without any gears
I wanted to understand how an e-bike mid-drive can shift with no cassette, no shifter clicks, and no chain hopping sideways. I built an interactive 3D model of the gearset you can …
Retiring the Brain: 8,000 lines deleted, the workflow stays
Two weeks ago I published a spotlight on the Brain — the live status board my AI agents and I used to run this monorepo. Then I asked whether I still needed it. Last night the agen…
Lost and found: my 2007 ITP projects are playable again
Back in February I finally retired my WordPress site: exported everything, handed it to an AI coding agent, and had this blog running the same afternoon. Great trade — except migra…
Project spotlight: Barbacena farm reports
Weekly farm reports for Fazenda Barbacena — herd, horses, crops, and events turned into a multi-week dashboard with charts, annual views, and a form for overrides that survive on G…
Project spotlight: House sale simulator
Keep-vs-sell Monte Carlo simulator for thinking through a house decision — run scenarios instead of a single spreadsheet guess. Live: lucaslongo.com/housesale…
Project spotlight: Serra Negra
A simple static photo site for Serra Negra — light presentation of the place without a CMS. Live: lucaslongo.com/serra-negra…