latest posts

  • Baking a Pi Router for my Raspberry Pi Kubernetes Cluster

    How I set up a Raspberry Pi 3 Model B+ to be the dns/dhcp server and router for my Raspberry Pi-based Kubernetes cluster. A general guide to how I eventually managed to get the Pi Router sharing working and some cautionary tales of pitfalls I encountered along the way.

  • Raspberry Pi Heat Sink Science

    Does the Raspberry Pi 3 even need a heat sink? An unscientific look into that age-old question that investigates the thermal performance of the Raspberry Pi 3 Model B with and without a heat sink. As a bonus, we'll also consider thermal paste versus thermal tape.

  • Hack Mini - Linux Workstation Build Log

    Recently I've found myself wanting a dedicated desktop machine just for coding. Although I do most of my development at work on iMacs and at home on an aging MacBook Air, I decided against buying another Mac -- the price and performance I wanted just wasn't there. "Linux is close enough", I thought, so I decided to build this small, discrete machine just for development.

  • Learning Operating Systems and Rediscovering C

    One of my goals this year is to learn more of the underlying concepts and theory of operating systems and improve my systems programming skills. Consequentially, I've enrolled in Graduate Introduction to Operating Systems through Georgia Tech this semester to help meet this goal. However, it's been a few years since I've written any C and I never had the opportunity to take an Operating Systems course in undergrad so I've got some ground to cover. This post is currently a work in progress, but I'll add to it over time to document my learning journey and include links to any resources that proved helpful along the way.

    , updated
  • How to Write Custom Rubocop Linters for Database Migrations

    Active Record and Sequel migrations provide an easy way for Ruby developers to alter their database schemas without having to write SQL by hand. This abstraction means that the same migration file could work against both a Postgres and MySQL database by simply changing the underlying database adapter. For large projects with many developers, however, it can be difficult to keep migration style consistent and enforce best practices without additional tooling. In this post we'll write our own custom Rubocop cop for linting migration files.