Luís Ferreira

@rubyconfpt organizer. @subvisual co-founder. Opinions are my own, except ocasionally when they are somebody else’s. 💻 Tech 🏀 Basketball 🎲 Boardgames

[Luís Ferreira @zamith]

I’ve launched https://t.co/wrrYS2fm9u today. Genuinely interested in knowing what you think. Does it make sense at this time? What parts would you like to know more about along the way?

[Luís Ferreira @zamith]

I'm starting a new challenge, building 12 products in 12 months. I'm calling it "12-in-12" and doing it all in the open. Each month you get to vote on what I build, and you can propose your own ideas: https://t.co/wrrYS2fm9u

[Luís Ferreira @zamith]

It’s wild how easy it is for these type of emails to creep up. I was getting a ton of them every week without really noticing. After running quietbox once not only do I get a lot less emails, the signal vs noise ratio is crazy.

Sounds like an infomercial, but it’s true 😂

[Luís Ferreira @zamith]

Quietbox is live 🎉 It costs less than a coffee (in the UK 😅) and it does not keep or sell your personal data!

Currently in invite only mode while Google does some extra checks. Want to try it? Reply or DM me with an email and I'll allow it.

https://t.co/WOS9Tqy2Ax #12in12

[Luís Ferreira @zamith]

@compileandpush @MattPocock Not sure I get the question. What do you mean by onboarding here?

[Luís Ferreira @zamith]

Props to @mattpocock for his AI building workflow. I'm using a variant for Quietbox: explore the decision tree, write findings to a doc, create issues from that doc, swarm agents to build + review. Want to know more? #12in12 https://t.co/QFUZyeB9Dh

[Luís Ferreira @zamith]

@levelsio The journey of building them with AI is vastly different from doing it all those years ago, should be interesting in itself.

Building for real users, not other indie devs. Could probably make more from the "how I did it" course than the actual products. Resisting the urge 😂

[Luís Ferreira @zamith]

Back in 2014 @levelsio built 12 startups in 12 months, I'm only 12 years late 😅 Not going for startups necessarily, but I do want to build micro products that are useful. There are already a bunch of ideas up for voting, check it out and add yours #12in12 https://t.co/wrrYS2fm9u

[Luís Ferreira @zamith]

https://t.co/wuEiGDQShp got caught selling its users' inbox data. That made every free unsubscribe tool a little harder to trust.
With Quietbox, I've decided to make it read headers only, never the body. It's a tradeoff, but it still works surprisingly well. #12in12

[Luís Ferreira @zamith]

@subvisual Yes, yes. Very unbiased. This is not an echo chamber at all 😅

[Luís Ferreira @zamith]

Aiming for a mix of "useful to me" and "useful to you". Month 1 is already underway, and you can follow it on the website. Go mess with the roadmap. Whatever wins, I'm on the hook to build. 1 down, 11 to go.

[Luís Ferreira @zamith]

I'm starting a new challenge, building 12 products in 12 months. I'm calling it "12-in-12" and doing it all in the open. Each month you get to vote on what I build, and you can propose your own ideas: https://t.co/wrrYS2fm9u

[Luís Ferreira @zamith]

@mattpocockuk What’s the benefit of /domain-model vs /grill-me? Does it still explore the whole decision tree? I’ve having great success with /grill-me. Also, the docs part is it for LLM consumption or another artifact for humans?

[Luís Ferreira @zamith]

@mattpocockuk @nicolekcha This is the biggest pain point for me. Doing this using an API key becomes extremely expensive, fast. Especially if you have a perfectly good subscription that could be used. Docker sandbox doesn’t support OAuth yet, though, does it?

[Luís Ferreira @zamith]

@mattpocockuk I've trying to do something similar to run in a ralph loop, the issue I keep bumping into with docker sandbox is claude authentication. If using an API key it works fine, to reuse my local session I can't get it to work. Tips?

[Luís Ferreira @zamith]

In the midst of wars both political and technological, I’ve decided to write about something a bit more chill. Board games and why we play the games we play.

https://t.co/CnM3rW91Wf

[Subvisual @subvisual]

27.6T in stablecoin volume last year. $255B market cap. 📈

Yet most infrastructure still serves traders, not businesses. 🤔

It’s time for #StablecoinSummer to change this!

We're launching a 4-week validation program for founders building stablecoin infrastructure for real-world use.

No generic advice or theoretical frameworks. Just hands-on validation with our product, engineering, and design teams. For free.

Read more about our approach and apply through the link in our bio. 👆

[Luís Ferreira @zamith]

@levelsio The point of taxes is that you choose a group of people, give them some amount of power and money so that they can manage it for the benefit of the many, not the few. You are free to disagree and get into the debate and do something about it. That’s what a democracy is about.

[Luís Ferreira @zamith]

@levelsio Your we can mean either each person which is a very dangerous take as we are already getting further and further apart as communities. Or it can mean we the (rich) people, which is also scary for those with less money that will get even worse care (presumably, but likely).

[Luís Ferreira @zamith]

I’ll be speaking at Goatmire and Elixir conference in Sweden in September. If any of those things sound interesting check it out: https://t.co/AHmr7Ea7DF

[Alchemy Conf @Alchemy_Conf]

As @zamith’s series with #AlchemyConf2025 speakers nears its end, we’re excited to welcome @wojtekmach!

A core contributor to Hex, Ecto, and ExDoc, he’s also behind MyXQL, Livebook Desktop, and Req. Plenty to dive into—stay tuned!

#MyElixirStatus #ElixirLang

https://t.co/LAX8pUOwTb