The Codex

Reflections on engineering, system design, and the craft of building software.

DevTerms: For Every Word You Quietly Googled
Engineering Notes

DevTerms: For Every Word You Quietly Googled

Small glossary for the words devs throw around without explaining. Plain English, real examples, $0 a month.

calendar_todayApr 2026schedule1 min read
Next.jsTypeScriptISR
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The Database Bug
Engineering Notes

The Database Bug

A connection that looked alive. It was not. Notes on pools, retries, and designing for failure.

calendar_todayJan 2026schedule3 min read
PostgreSQLNode.jsVercel
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StockFlow Phase 2: Sales, Receipts, and Returns
Engineering Notes

StockFlow Phase 2: Sales, Receipts, and Returns

Phase 2 of StockFlow. Sales, invoices, returns, attendance, thermal receipts.

calendar_todayJan 2026schedule1 min read
StockFlowAngularExpress.js
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Two Years Later, I'm Still Here
Career

Two Years Later, I'm Still Here

Two years at Celloscope. Less novelty. More depth.

calendar_todaySep 2025schedule2 min read
CareerReflectionGrowth
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StockFlow Phase 1 is Live
Engineering Notes

StockFlow Phase 1 is Live

First demo of StockFlow. Categories, suppliers, warehouses. The boring foundation everything else depends on.

calendar_todayMay 2025schedule2 min read
StockFlowAngularExpress.js
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Celebrating One Year at Celloscope
Career

Celebrating One Year at Celloscope

One year at Celloscope. Three projects, an unfamiliar stack, a few lessons that stuck.

calendar_todaySep 2024schedule3 min read
CelloscopeCareerAngular
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Transitioning from React to Angular
Career

Transitioning from React to Angular

First post on LinkedIn. Notes on switching from MERN to Angular, PostgreSQL, and Hapi.js at work.

calendar_todayFeb 2024schedule1 min read
AngularPostgreSQLHapi.js
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