Writing

Long-form notes on Go, infrastructure and the CNCF projects I work in, with the real code and the tradeoffs. Sometimes a career lesson too.

~/Writing

All tech golang infra opensource ideology security observability prometheus web3

2025

  1. I Built a File System Where Nobody Can Lie to You

    2025-10-02 · 13 min

    Building a content-addressed file system on libp2p where every blob is verified by its own hash, so a peer can never lie about what it sent.

    techgolangweb3

  2. How I Stopped Fake Emails From Wrecking My Signup Flow

    2025-05-14 · 12 min

    A tiny Go package that blocks disposable and fake signups with four cheap checks cheapest-first, an auto-syncing blocklist, and the honest false-positive traps nobody warns you about.

    techgolang

2024

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

    2024-07-16 · 13 min

    Building a round-robin HTTP load balancer in ~200 lines of Go, and the five quiet bugs (one of which go vet screams about) that reveal what real load balancing actually is.

    techgolang

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

    2024-01-24 · 5 min

    My first merged PR into Kubernetes was 25 lines of tests. Why a small, test-only change is the smartest way into a five-million-line repo.

    opensourcegolang

2023

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

    2023-12-05 · 11 min

    Writing a tiny rootless container runtime in Go to see what a container really is: namespaces, pivot_root, and why Docker needs the reexec trick.

    techgolang