Consulting Interested in working together or just having an informal chat? Hit me up at adolfo@ochagavia.nl any time. I’m currently offering the following services: Container tools development. I led the design and implementation of a container image builder, registry and runtime in collaboration with Outerbounds (see…
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For the last four months I’ve been developing a custom container image builder, collaborating with Outerbounds1. The technical details of the builder itself might be the topic of a future article, but there’s something surprising I wanted to share already: you can use S3 as a container registry! You heard it right…
Last week I had to diagnose a bug in an open source library I maintain. The issue was gnarly enough that I couldn’t find it right away, but then I thought: if I set a breakpoint here and fire up the debugger, I will likely find the root cause very soon… and then proceed to mercilessly destroy it! So I rolled up my…
Since starting out as an independent contractor, I’ve always felt a tension between being a generalist software engineer, yet having to market myself as a specialist. I’ve been wanting to write about it for years and even have kept some notes for that purpose. Recently I came across an article by Ben Collins-Sussman…
Last month I have been developing a Rust tool to create container images from Conda environments, without going through Docker. It was a wild trip down the rabbit hole of OCI images, so I thought I’d share part of the adventure here. Enjoy! But why? If you are used to building container images, you might be asking…
How many roads must a programmer walk down before you call them a contractor? It’s been about three years since I went down this (bumpy) path, and I finally have the feeling that my contracting business is “bootstrapped”1. Here’s an account of my journey so far, hoping you find it inspiring! 0. Contents Articles about…
We have all been there. Your software keeps growing and you feel the need to make it customizable. It is too soon for a full-blown UI with all the bells and whistles, so your pragmatic instinct suggests a text-based configuration file. Yes, that’s exactly it! You rejoice knowing the software’s configuration will be…
The year was 2015, halfway through my Computer Science bachelor’s degree. I had spent a few months contributing to open source and my confidence levels were high, so I thought: why not aim for a summer internship at Microsoft? Microsoft, of all places, might sound like a weird company to target in 2026. Back then…
Have you ever asked yourself which protocols get used when downloading pictures from the Perseverance Mars rover to Earth? I hadn’t thought about that either, until I came across an intriguing message on the internet, back in April 2024: I’m looking for someone knowledgeable of quic/quinn to help us out for our deep…