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Deep dives on infrastructure, distributed systems, Go, and CNCF projects. Real code, honest tradeoffs, and the occasional career lesson.

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How Prometheus Finds Matching Series in Milliseconds

How Prometheus finds the series matching your query in milliseconds: inverted indexes, posting lists, Seek-based set intersection, and why negative matchers and regex are the expensive part.

tech prometheus read →

2026-05-27 8 min read →

My First Merged PR Into Kubernetes Was 25 Lines of Tests. Here's Why That's the Move

opensource golang

2023-12-05 11 min read →

I Wrote a Container Runtime From Scratch to Find Out What a Container Even Is

tech golang

2023-08-18 5 min read →

Rebuilding a Site 11 Million People Read, With Antora and Gatsby

tech opensource

2023-05-22 3 min read →

How I Got Into GSoC (and Stopped Being Scared of Jenkins)

opensource ideology

Blogs.

How Prometheus Finds Matching Series in Milliseconds

Observability That Actually Helps at 3am

Service-to-Service Auth From Scratch, and the Five Things That Bite You

The Right Tool in the Wrong Runtime: Querying Cloud Cost Data with DuckDB

I Built a File System Where Nobody Can Lie to You

Sister CVEs: Predicting the Vulnerabilities You Haven't Found Yet

How I Stopped Fake Emails From Wrecking My Signup Flow

What Hardening a Container Image Actually Removes

From Scared of the Repo to Mentoring People Into It

Fail Forward

Beginner's Guide to Programming

How to Contribute to Open Source

A Load Balancer Is 200 Lines of Go, and Five Bugs You Won't See Coming

My First Merged PR Into Kubernetes Was 25 Lines of Tests. Here's Why That's the Move

I Wrote a Container Runtime From Scratch to Find Out What a Container Even Is

Rebuilding a Site 11 Million People Read, With Antora and Gatsby

How I Got Into GSoC (and Stopped Being Scared of Jenkins)