A customer reported a bug. I opened a pull request to fix it. That's the part I love about my job. petros.blog/2026/05/20/...

Some editors want to be more like CLI Agents. Some CLI Agents want to be more like editors. And then there are vertically specialized solutions like Tidewave, making both editors and CLI Agents jealous. It’s not clear who wins in the end.

I once flew to Athens to interview for a BCS membership. When I mentioned Michael Dertouzos's 'What Will Be' as a favorite book, both professors laughed uncontrollably. They never told me why. Nearly everything he predicted came true. petros.blog/2026/04/16/...

I love how so many articles about running LLMs locally start with “Here’s a simple setup...” and then go on for pages of hoop-jumping before you can even see anything working.

A blast from last year: petros.blog/2025/04/19/...

As an employer, you can't have the all-nighters and the early mornings. At some point, something gives. A story from my early career: petros.blog/2026/04/12/...

For every two hours of agentic coding, plan on spending the next two days refactoring just to keep things under control. The numbers are made up, but the tradeoff is real.

Made my first contribution to Homebrew — github.com/Homebrew/br...

Coding felt like playing a song. Now someone walks up and says, "Stop playing it yourself, or you'll fall behind." I wrote about what it feels like when the instrument changes and why I can still play. petros.blog/2026/03/27/...

Built a soil moisture monitor with my son. Works at school and at home. Pi Zero 2 W + LM393 + Elixir/Nerves + LiveView: tracks moisture, sends “water me” push alerts, and serves a real-time local dashboard. Runs fully on the Pi. Open source: github.com/petros/spm #MyElixirStatus

Customers can handle bad news. What they can't handle is the feeling that they are being managed. New post on radical transparency in support. petros.blog/2026/03/19/...

Sometimes you need to slow down to marathon pace, even if you can sprint. New post on why I stopped multitasking with AI tools. petros.blog/2026/03/18/...

I love this bit from the iA Writer blog: "The solution to staying focused while writing sounds trivial: When you type, just type. When you structure, just structure. When you format, just format. Why is that so hard?"

Managing up isn't about self-promotion. It's about meeting your manager halfway. A few bullet points in a shared doc before your 1:1 can change the whole dynamic. New blog: petros.blog/2026/03/17/...

Sometimes I’ll use a coding agent session to map out a full plan, then come back in a new session to build it. And right as I’m about to hit “done,” I catch myself feeling weirdly guilty. Like I’m pulling the plug on this session’s life. What’s happening to me?

With agentic coding, I sometimes feel like a classic telephone operator: mostly routing requests, wiring up the right tools and APIs, verifying the handoffs, and keeping the conversation moving while the real work happens somewhere else. For as long as this lasts.

Ask people to enter their ZIP code first. zipcodefirst.com

I wonder how it would be to combine MacBook Neo with @OmarchyLinux (not sure if it can target it).

I guess "Claude is down" is the new "GitHub is down". Time to walk the dog or something.

Most software nowadays has a dozen ✅ in it.

I used Tidewave to upgrade a Phoenix app from 1.7.21 to 1.8.3. Here’s what I learned petros.blog/2026/02/15/... #MyElixirStatus

I first read about RDD (Readme Driven Development) in 2010 in a post by @mojombo. RDD is now more relevant than ever. What could be a better way to start a conversation with your favorite coding agent?

In science, nothing beats the thrill of a wrong answer.

While working at GitHub in 2014, we chose to remove Git notes from the UI. I remember lengthy discussions but not the details. I think the main reason was that the GitHub UI already covered most Git notes use cases. #GitHubStories

Elixir and its ecosystem excel at delivering a single codebase that seamlessly operates across all tiers, outperforming any other platform I've tried. #MyElixirStatus

Cached notification counters that never disappear, no matter what, ruin me. I am looking at you @SlackHQ

Are TV UIs getting worse? They're sluggish. Slower than a sloth trying to migrate. Why reinvent the UI for every device? I miss my '80s TV with instant buttons and no remote, just a reason to get off the couch.

TUIs are making a comeback, which is fantastic for an old person like me.

Is it only me or has macOS 26 made figuring how to move windows with your mouse a bad experience? I constantly catch myself not knowing where to grab a window from.

Just discovered a framework for writing terminal user interfaces in Elixir. What should I build? #MyElixirStatus github.com/pcharbon70/...

Nothing against Advent of Code, but what if I develop 12 tiny productivity tools this year instead? Just thinking out loud. 🙂

My Claude Code conversations started getting a bit out of hand, so I created a `claude-sessions` tracker to Map meaningful labels to session IDs, track multiple sessions per label, and resume your work with a simple command. github.com/petros/clau...

If you're just starting as a programmer and nearing graduation, what's the best path to ensure your skills remain relevant and adaptable? What should you specialize in?

If you ever need to force push to a remote branch but first keep it safe locally in case you want to restore, here's an approach: github.com/petros/kb/b...

What's with projects leaving GitHub? dillo-browser.org/news/migrat... — I remember the opposite back in they day. This time it's because there's too much JavaScript in the UI. 🤔

It’s that time of the year 🥳

After learning about @ziglang's move to @codeberg_org, I decided to create a new Codeberg account. Either their sign-up process is terrible, or I'm missing something, because I ended up stuck in a no-user land. Their CAPTCHA is impossible to solve. I give up.

I'm convinced that a relatively experienced programmer, along with Tidewave and @elixirphoenix, can achieve great things—even start and run a small business. #MyElixirStatus

I deployed on a Friday afternoon and also gave feedback to a team member. Some say you shouldn't do either on a Friday.

I'm drafting a prompt for Claude Code and need to convey the desired simplicity of the final app. It will be used for managing our building expenses. I want to avoid expressions like "Some users are so incapable, they can't even operate an elevator."

What am I losing if I block anything coming from substack?

I've worked with numerous editors across various web apps for years, but nothing compares to GitHub's simplicity when editing issues. It's hard to pinpoint exactly why, but I think it's because it doesn't interfere or make decisions for you.

Another interview with members of our Greece |> Elixir community. Once again, in Greek for the time being. Άλλη μια συνέντευξη με μέλη της κοινότητας Greece |> Elixir. www.youtube.com/watch?v=mX3... #MyElixirStatus #GreeceElixir

Most people that could exist, mathematically, will never exist. We are so lucky we were here.

"This page was reloaded because it was using significant energy.". Why does a page that shows a list of products use significant energy?

As an introvert, I was terrified of public speaking. Then, I took a stand-up comedy workshop and performed at three open mics. After that, public speaking felt easy. Stand-up comedy is the ultimate challenge. Stepping out of my comfort zone really paid off.

I imagine the Internet is gradually filling up with AI generated, bloated code. AI is trained off that. The cycle continues. I wonder if simplicity should be somehow ingrained in the models and the agents.

Imagine an AI coding agent, designed with the goal to help you learn. Not with the goal of making you 10x productive. But with the goal of making you learn at 10x speed. Learn fast, brew software slowly. 🤔

This is the Greek way. 🍅, 🥒, onion, 🫒 oil, vinegar, salt, feta, and oregano. Freshly baked bread. 🥖

A new series of Greece |> Elixir member interviews as an attempt to get to know each other, but also talk about our community in public, here's our first interview of our member Elias. Enjoy! (In Greek for the time being). youtu.be/deiO7i3GlVw #MyElixirStatus #GreeceElixir #ElixirLang