Osa's notes

Things I am figuring out.

A small archive of technical deep dives, product lessons, and the occasional detour.

Latest notes

6 posts
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Your coding agent should open the browser before it says it’s done

Why browser review belongs in the definition of done for user-facing frontend work.

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The Invisible Force: A Visual History of Blood Pressure

From a clergyman's horse experiment in 1733 to the digital cuff on your wrist: how humanity learned to measure the pressure of life itself.

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How to Build a PostgreSQL Backed Job Queue in Go

Learn how Go and PostgreSQL power a production-grade background job queue, covering goroutines, contexts, row locks, LISTEN/NOTIFY, and advisory locks.

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Demystify Queues and Their Real-World Applications

Learn about queues by building an app that remembers...

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Animating SVGs with Framer Motion - a TO loading SVG Case Study

Learn how I animated my loading state SVG

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5 min read

First post (Calvary Greetings!)

First ever post, why this blog etc