Justin Garrison's Homepage

This post is sponsored by Cast AI, but they had no input in my review.

This build took much longer than I anticipated.

I really tried to make it work.

This post is sponsored by Cast AI , but comes from my real world experiences.

You’re not outsourcing work to AI.

In preperation for conferences this year I wanted to update my PETaflop cluster to something that was easier to travel with.

I gave a talk at SoCal Linux Expo explaining what an “immutable” OS means and how some of the popular distributions implement immutability.

In 2025 I tried to spend less time on social media and more time reading long-form content.

Instead of going to therapy I built another Kubernetes cluster.

Company leadership say they’re data driven, and they may even believe it.

In an effort to keep using my domain for my identity online I wanted a way for people to start a Signal chat with me without needing to publish my phone number.

I’ve been running a home lab in various states for over 20 years.

Mastodon is a social media monolith, but Bluesky’s architecture is microservices in the ways I like.

Platform engineering teams are fooling themselves if they think they can build a single platform that will fit everyone’s needs.

AWS has recently been silently removing services for new users.

These are the best practices for announcements from your cloud provider.

In 2011, Marc Andreessen famously said “software is eating the world .”

I just wrote about my path with Kubernetes and how I’ve seen the project grow.

My background In February 2014 I saw a presentation by Jérôme Petazzoni about a new tool called Docker .

This topic has come up often over the years so I’m writing it down to express my current opinion of how your application and infrastructure should grow over time.

This was the biggest un-truth that I saw while working at AWS on the EKS team.

Today is my first day at Sidero !

Every developer I know is in one of the following stages.

I had a csv file with data that looked like this. email,date me@example.com,Mon Jan 01 2024 15:59:34 GMT+0000 you@this.com,Wed Nov 01 2023 23:20:09 GMT+0000 And I needed to convert the date field into this: email,date me@example.com,2024-01-01 you@this.c…

This is not financial advice and I am not an expert.

I use Git to track my resume revisions and job applications.

I’ve been attending technical conferences over 15 years.

“Show me the data.”

Infrastructure has come a long way in the past 5 years, and yet infrastructure as code has been stuck with the same promises and tools for much longer.

This article is best to experience before reading the details.

The platform engineering hype wave is almost over—thank you AI, but too many companies are still full steam ahead building one.

Shell aliases are great, but they have some limitations.

Amazon, AWS, Twitch.tv, Whole Foods, Woot, and Audible are among the companies that use document driven meetings to plan new products, features, and processes.

Mastodon is free and open source microblogging software that many people believe will be the next Twitter.

Flatpak might be a great portable, secure packaging format, but it’s not the most user friendly tool.

The age of content being king is long behind us.

Amazon Elastic Compute Cloud (EC2) has over 100 unique instance types with more than 600 size combinations.

Thanks to the 2022 StackOverflow developer survey we can finally say 2022 was the year of Linux on the Desktop!

Mastodon is built on the ActivityPub protocol which is based on Activity Streams which stores data in JSON Linked Data (JSON-LD) .

Comments Final 123dev issue Thank you so much for subscribing to this newsletter.

This site is generated with hugo which I love, but the default RSS template is very basic.

Comments Examples Documentation comes in many forms.

Comments Stuck I was wrote Typescript this week for the second time in my life.

Comments Accidental priorities I uninstalled the Twitter app from my phone last week.

The goals of infrastructure since I started managing it has been to automate it, make it immutable, and make it declarative.

Comments How did this happen?

Comments Velocity is better than speed In physics speed is the rate of change over time.

Comments Application Native The traditional box drawn around an “application” has been small.

Comments The right tools I’ve been building a shed in my backyard and it has turned into a neighborhood project.