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...

Add HOMEBREW_FORCE_BREW_WRAPPER_HELP_MESSAGE by petros · Pull Request #21834 · Homebrew/brew

Allow wrapper providers to append a custom help message to the HOMEBREW_FORCE_BREW_WRAPPER error output. If set, the message is included at the end of the error. If unset, no change in behaviour. T...

github.com

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

GitHub - petros/spm: Smart Plant Management

Smart Plant Management. Contribute to petros/spm development by creating an account on GitHub.

github.com

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/...

Embrace Radical Transparency for Better Customer Support

Discover the power of radical transparency in customer support. Learn how honest communication can build trust and loyalty with clients.

petros.blog

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/...

One Thing at a Time: Mastering Focus in a Multitasking World

Discover the benefits of single-tasking over multitasking. Improve focus, reduce anxiety, and enhance your overall well-being with one simple change.

petros.blog

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/...

Managing Up: Enhance Your 1:1 Meetings with Your Manager

Learn how to manage up effectively in your 1:1s. Enhance your career by fostering better communication with your manager and driving success.

petros.blog

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

Put the ZIP code first.

A ZIP code is 5 characters. City, state, country — autofilled. It's 2026. This isn't hard.

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

Upgrading Amignosis: Phoenix and Elixir with Claude Code

Discover how I upgraded my Phoenix LiveView app using Tidewave and Claude Code, overcoming challenges and optimizing the process.

petros.blog

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/...

GitHub - pcharbon70/term_ui: A framework for writing terminal user interfaces in Elixir

A framework for writing terminal user interfaces in Elixir - pcharbon70/term_ui

github.com