Hugo Baraúna
hugobarauna.com
Hugo Baraúna
@hugobarauna.com
Dev advocate at Dashbit (livebook.dev / tidewave.ai)

- Also, curator @elixir-radar.com
- Past: founder at Plataformatec (acquired by Nubank)
Your agent just made a ton of CSS changes and you’re trying to make sense of them?

Same here. I was curious if Tidewave could help me understand it all visually.

Here’s how it went. SO COOL!
February 11, 2026 at 3:38 PM
👀

In a Tidewave near you...

If you're on Tidewave's Discord, you already know this. ;)
February 11, 2026 at 1:03 PM
Beautiful!
I've always loved computer art like Boids and now we can do it in Elixir!

github.com/jeregrine/Ea...

I even made a little video explaining some of it, (forgive my rough/rushed editing).
February 10, 2026 at 1:18 PM
Reposted by Hugo Baraúna
I made a map of 3.4 million Bluesky users - see if you can find yourself!

bluesky-map.theo.io

I've seen some similar projects, but IMO this seems to better capture some of the fine-grained detail
Bluesky Map
Interactive map of 3.4 million Bluesky users, visualised by their follower pattern.
bluesky-map.theo.io
February 8, 2026 at 10:59 PM
A new and AWESOME 🤩 project of our book is coming!

Build an Etch A Sketch, input from your Nerves-powered Raspberry, and visualize within Livebook. 🔥

#ElixirLang
It's been a long day of writing and programming, but I think everyone that picked up a copy of Programming Nerves (programmingnerves.dev) will really enjoy building the Etch A Sketch project 🎉!

@nerves-project.org + @livebook.dev = ❤️

#MyElixirStatus #ElixirLang #Erlang #Elixir
February 9, 2026 at 12:18 PM
❤️ 🧡 💛 💚 💙 💜 🤎 🖤 🤍
Sharing just cuz I used Claude Opus to make something similar last week for a client. I knew the data model, and I am well versed in Elixir and Ash. Within 8 hours I had a shippable full featured and tested product. Claude was amazing for Ash Policies. Tidewave.ai also made the speed possible.
Tidewave
The coding agent for full-stack web app development
Tidewave.ai
February 4, 2026 at 10:32 PM
Reposted by Hugo Baraúna
This person made a production management tool for his spouse's bakery in #ElixirLang + Ash + LiveView. It's super valuable to have an codebase like this be open source for people trying to get into that tech stack. 💜

github.com/puemos/craft...
GitHub - puemos/craftplan: Self-hosted software for managing artisanal D2C micro-businesses
Self-hosted software for managing artisanal D2C micro-businesses - puemos/craftplan
github.com
February 4, 2026 at 3:07 PM
Reposted by Hugo Baraúna
Elixir Radar issue 499 is out! 📣

You can read it here: buff.ly/hTakXIT

#ElixirLang
Elixir Radar Newsletter
Curated content from the Elixir community
buff.ly
February 4, 2026 at 4:15 PM
Explaining a product in a new category is hard.

Every copy change is a chance to understand it better.

Today’s Tidewave website update feels like one more step forward.

Let me know what you think.

tidewave.ai
February 2, 2026 at 5:26 PM
Reposted by Hugo Baraúna
Elixir Radar issue 498 is out! 📣

You can read it here: buff.ly/4Yw6Fvi

#ElixirLang
Elixir Radar Newsletter
Curated content from the Elixir community
buff.ly
January 28, 2026 at 4:15 PM
Reposted by Hugo Baraúna
. @hugobarauna.com breaks down the distributed Erlang techniques powering Livebook's multi-node architecture.
Real primitives. Real production code. Ready to use. www.elixirconf.eu#register
January 26, 2026 at 1:43 PM
Vou falar sobre desenvolvimento de internal tools com Livebook, bora?

Hoje 19:00, online no Elixir Carajás meetup:

www.youtube.com/live/jagZ5lh...

#ElixirLang
Elixir Carajás 006 - Utilizando o Livebook para desenvolvimento de ferramentas internas
YouTube video by Elixir Carajás Meetup
www.youtube.com
January 22, 2026 at 8:54 PM
Negative churn is one of those SaaS metrics you read about for years and quietly hope to see one day.

This month, it happened. 🙂

December was our first month with net negative churn.

Five months in, 700+ paying customers, and things are getting better month by month.

Let’s keep going.
January 22, 2026 at 7:36 PM
Let's go to ElixirConf Europe in April!

I'll be there speaking about Distributed Erlang Lessons from Livebook.

If you’re there too, come say hi. :)

#ElixirLang
January 22, 2026 at 4:04 PM
Reposted by Hugo Baraúna
Elixir Radar issue 497 is out! 📣

You can read it here: buff.ly/pZFMuro

#ElixirLang
Elixir Radar Newsletter
Curated content from the Elixir community
buff.ly
January 21, 2026 at 4:15 PM
Reposted by Hugo Baraúna
Hey Elixir friends! :) Hologram's journey just took a big leap forward: @curiosum.bsky.social is coming on board as the Main Sponsor, and I'm joining their team to work on Hologram full-time!

Read what this means for Hologram: hologram.page/blog/hologra...

#Hologram #Elixir #ElixirLang #BEAM
January 21, 2026 at 1:39 AM
Our book on embedded software with Elixir and Nerves is coming together beautifully!

#ElixirLang
It's Saturday morning....which means time to write! On the agenda today is programmingnerves.dev. Currently going through Chapter 3 and tidying up the traffic light simulator project after @hugobarauna.com's meticulous review 😉!

#MyElixirStatus #ElixirLang #Erlang
January 19, 2026 at 12:41 PM
Reposted by Hugo Baraúna
The VS Code extension for expert, the new official Elixir language server, is finally published 🥳

marketplace.visualstudio.com/items?itemNa...

open-vsx.org/extension/Ex...

Expert is still early in development (pre-0.1) but working quite well already.

#elixirlang
Expert LSP - Visual Studio Marketplace
Extension for Visual Studio Code - Elixir language support for Visual Studio Code
marketplace.visualstudio.com
January 18, 2026 at 9:55 AM
"What happens when I click this button?"

Tidewave can now answer this visually.

Point → Ask → Get a Mermaid diagram of the execution flow through your stack.

www.youtube.com/watch?v=Yq38...
Mermaid + Tidewave Integration Walkthrough
YouTube video by Dashbit
www.youtube.com
January 16, 2026 at 5:01 PM
Reposted by Hugo Baraúna
Elixir Radar issue 496 is out! 📣

You can read it here: buff.ly/LI6WlJz

#ElixirLang
Elixir Radar Newsletter
Curated content from the Elixir community
buff.ly
January 14, 2026 at 4:15 PM
Reposted by Hugo Baraúna
Thanks, Tidewave and Claude, for helping me build a Plan Advisor in no time with Phoenix LiveView for @rocketvalidator.com 🚀

Check it out:

rocketvalidator.com/pricing#advi...

#ElixirLang #accessibility #SaaS
January 8, 2026 at 5:13 PM
😍
I'm at Joe's famous "make it beautiful" part for the Programming Nerves Etch A Sketch project 🤩. Pretty cool that you can do all this inside of @livebookdev and @NervesProject.

Pick up your copy today at www.programmingnerves.dev

#ElixirLang #MyElixirStatus #Erlang
January 9, 2026 at 11:41 AM
Reposted by Hugo Baraúna
Elixir Radar issue 495 is out! 📣

You can read it here: buff.ly/GnsPuQR

#ElixirLang
Elixir Radar Newsletter
Curated content from the Elixir community
sendy.elixir-radar.com
January 7, 2026 at 4:15 PM
I listen to instrumental jazz all day while working. After months, Spotify thought that's all I listen to, but it's only my work music.

So I built (with Claude Code) a tiny macOS tool to keep Spotify Private Session always on.
GitHub - hugobarauna/spotify-private: Automatically keeps Spotify's Private Session enabled on macOS using Hammerspoon
Automatically keeps Spotify's Private Session enabled on macOS using Hammerspoon - hugobarauna/spotify-private
github.com
January 6, 2026 at 1:29 PM
Just tried asking Claude (desktop) to create a simple Livebook tool for me, and it worked!

Once done, I can click "Open in Livebook" and it opens directly in my Livebook desktop 🎉

Try with "create a livebook to..."

#ElixirLang
January 5, 2026 at 6:48 PM