Big upgrade to my Claude Code. Guess which movie this is?

Design is the work now. Cognitive debt is the newest drag on productivity. petar.dev/posts/cognit...

3rd rewrite of a new agentic system in 48 hours. Frustrating? Yeah, a little. But I'm learning so much. It's a relentless loop: hours on the design, execute fast, hit reality, learn, restart. Each pass I'm making fewer mistakes and building real intuition for how the system I'm building works best.

Maybe if I reach a 1.000 followers, my kids will think I'm a cool dad.

I created two skills which I always found to be gotcha's when working with #elixirlang and LiveView. Both can have a big impact on user experience. First, LiveView and optimistic updates, making sure that the UI stays responsive, even when there is latency. github.com/wunki/amplif...

Codex is mind-blowingly good at writing #elixirlang. I can spend hours iterating on system design with it, optimizing for simplicity and observability. Once that clicks, the result is a system that is easy to understand and easy to debug, for both me and Codex.

If Codex fails on #elixirlang with "failed to open a TCP socket in Mix.Sync.PubSub.subscribe/1, reason: :eperm" try this setting in your ~/.codex/config.toml: [sandbox_workspace_write] network_access = true

It's the small things, but things like this make agentic coding in #elixirlang much better.

This is a very interesting project that pairs perfectly with #elixirlang LiveView, where data locality is so important. Put servers around the world (easy), have data close to the user (hard). github.com/ocean/ecto_l...

Anybody by any change have a Lobste.rs invitation for me? There are some good discussions happening there and would love to participate.

My thinking on Finde has evolved and I couldn’t be more excited. The scope is bigger and sharper: a second brain that improves while you sleep, with you driving every decision. While it with blogging, a blog is now just an output of you sharing one of your notebooks. beta.finde.app

I like to work on the server, but copy-paste was not working in my Ghostty/Tmux and OpenCode setup. After some debugging, I got it to work: petar.dev/notes/copypa...

Made my #neovim theme available. Also lots of extra to have harmony with ghostty, tmux and opencode :) github.com/wunki/gondol...

Brain fart, record all key strokes and commands in Neovim. Give that to an LLM to analyze. Let it make suggestions to improve your flow.

Happy 2026! I reworked my landing page for Finde. What do you think? Is it clear what I'm trying to build here? Like the design? Would you use it? beta.finde.app

Working hard to release the first version of Finde before the end of the year. I think AI is here to stay and is very useful, but we can't let the internet drown in slop. Finde is trying to solve that. beta.finde.app

I tend to work with Neovim and OpenCode side-by-side, but did not like it that I had to visit Neovim for the buffer to be updated with the changes. Easy fix, now the buffer always represents the latest changes, even if Neovim is not active: github.com/wunki/dot-nv...

You can just do things now... So I wrote my own Neovim theme. Pretty happy with the results:

TIL: Rap stands for Rhythm and Poetry.

I published my first Hex package. Making it easy to work with Git worktrees in your #elixirlang and Phoenix project. Still pretty atuned to my my project configuration, but it may be useful for others. hexdocs.pm/tak/

Easily work on multiple features with #elixirlang and Phoenix with the help of Git worktrees. No more broken LSPs, missing migrations or conflicting ports. www.youtube.com/watch?v=t6l7...

Pretty happy where I landed with the landing page (pun intended). Blog engine where you connect your Claude or ChatGPT. It reads your blog, looks at your analytics, and suggestions appear live as you chat. Everything goes through a review queue, you never lose your voice. #elixirlang ex.finde.app

I'm going to plan a holiday where I read Manning books during the day and watch Lord of the Rings at night. That's it.

The "March of Nines" is such a great way to talk about software development: petar.dev/notes/the-ma...

Svelte good a huge DX boost with remote functions. And grateful for @joyofcode.xyz to create a banger video explaining them, walking through the tutorial has been lots of fun. www.youtube.com/watch?v=Ldnm...

Was looking into SvelteKit and got pretty far, pretty quickly in building a prototype of an app. with the help of AI. However, I also got stuck, not understanding what I had actually build. Went back to rebuilding from scratch, making sure I understand each piece of code. There is a lesson here.

Details matter. Email input is active while opening the page. Button starts disabled, as the form becomes valid, the button transitions to being enabled. Only thing I don't like is that the button jumps because of the error message. Build with #elixirlang and LiveView.

Vercel came out with their new domains app and its getting much praise for its snappy UI. Can we build an UI as polished with LiveView? Should be doable no? #elixirlang

Monday, cutting sugar out of my diet. Tuesday and Wednesday, headache throughout the day. What a drug.

I woke up and decided to write something to promote #ElixirLang more, since it brought us so much. "Sometimes the best tool for tomorrow’s problem is the one that’s been quietly excellent all along." petar.dev/posts/elixir...

Can't wait to receive this book in the mail today: "Code Health Guardian: The Evolving Role of Human Programmers in the Age of AI." Promise to share a short review after reading it. amzn.to/46ORtIJ

Oban alone is worth switching stacks for. I haven't seen an as powerful, easy to run and polished background job processor in any other stack.

New #ElixirLang and Phoenix project checklist: - Setup LiveDashboard - Configure .iex.exs (auto_reload) - Add Credo - Add LiveDebugger - Add Oban - Add Tidewave - Setup Fluxon (my components of choice) Anything I'm missing?

Hear me out... what if we build replication of SQLite across the cluster with #ElixirLang and the primitives provided by the BEAM? Instead of using external tools like LiteFS or the new Beamer project by Basecamp, we make it easy to use with Phoenix and Ecto.

The Zen Browser has come a long way. If you gave it a shot before and didn't like it, please try again. We could use more Firefox users out there to balance the scales.

Watched a video from a fellow developer about their journey in finding a TypeScript stack that manages real-time updates, streaming, and background jobs. It required multiple subscriptions. In #ElixirLang, we often take for granted how seamlessly these features come with the platform.

Presentation on Beamer for SQLite was just released. It shows replication for SQLite databases and Rails apps. This is definitely something I would like to port over to Phoenix and Ecto for #elixirlang. www.youtube.com/watch?v=lcve...

Loved DHHs presentation and the "Many Small Outposts". As an #elixirlang dev, this concept resonates deeply, LiveView experience is so much better when users are close to the database. Great opportunity for the Elixir community to tag on this initiative and help.

I don't use Daisy UI for any of my #ElixirLang projects, but luckily, it's really easy to remove: petar.dev/notes/removi...

My age shows when I open up my editor, font size 16.

"Nothing is made to be loved. Only to be bought." What a powerful statement. english.elpais.com/culture/2025...

I like to keep a `NOTES.md` file within each project. My flow in Zed is that I now pin the file and then can quickly switch to it with CTRL-1.

I tested every browser so you don't have to. It's Vivaldi people. That's the one you want.

I thought I was going crazy, but it's clear when you put them side-to-side. Firefox fonts are fuzzy for some reason. Left is Firefox, right is Safari.

Back to #Firefox. A few simple tweaks went a long way for a more minimal and faster experience. petar.dev/notes/a-more...

New album from Ólafur Arnalds! album.link/i/1811135351

I wrote something about "taste". A much-needed thing in the age of AI: petar.dev/posts/taste/

One thing to keep in mind when using LLMs for coding is that they are still limited in their ability to design a new system. I tend to use them less frequently at the initial stage of development.

I've seen this so many times. You build a table with numerous filtering options (great!), but you don't reflect the state in the address bar. No way to bookmark, share, or refresh the page.

Uh-oh I got nix-pilled…