I bought a set of golf clubs and immediately needed a diagram
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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: what my expenses spreadsheet kept getting wrong
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
The Garmin GNS 430 is a small grey box that sits in the panel of a great many light aircraft: GPS, navigation radio and comm radio in one unit, with a 240×128 pixel screen and a st…
How an eCVT shifts an e-bike without any gears
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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. Yesterday I asked whether I still needed it. Last night the…
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…