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martimchaves

Re:What shall I teach my son? on Wednesday October 21, 2026 @09:55AM (#50181032)
I'm not sure this applies. In the prior case they were talking about recognizing emotions and asserting rules (with explanations). I think Zizek's example here is more about disguising a direct order as a way to obfuscate authoritarianism. I don't think OP is saying that you should use subterfuge to get your way, but instead that you should recognize negative emotions as they happen, by explicitly noticing and talking about them out loud.

I think that if OP were to use the approach Zizek mentioned, they would've said something along the lines of: "You don't have to take off your dirty shirt, but oh the bed would be so sad if you were to wear it, really you would be the most beautiful child if you were to take off your dirty shirt and put a clean new one".

Re:Urge Surfer on Wednesday August 19, 2026 @10:32AM (#49362166)
Hey HN, a while back, I saw Robin Linacre's post on HN showing his work on letter paths, a way for people to write in cursive: https://github.com/RobinL/letterpaths

I thought it was quite fun and relaxing, even meditative.

Later on, I was watching a video on online betting, particularly Polymarket. And I got an idea to create a simple app where we can use cursive writing as a form of meditation to overcome the urge of betting. That's when Urge Surfer was born.

The idea is that, for an urge that requires a screen and is something that you don't really want to do, you can use Urge Surfer to "surf" that wave. It seems that urges can sometimes be like waves: they get stronger, but in a short time period, they pass.

The sentences are self-compassionate, kind, gentle, and hopefully that helps people put themselves at ease while the urge passes.

The code is completely open source, and you can self-host: https://github.com/MartimChaves/urge-surfer

No data is stored except for the number of waves that have been surfed, and there's a seed used to randomize the sentences.

Thanks

Re:Down with the Gradient Reinventing Logistic Regression on Thursday July 23, 2026 @12:23PM (#49024205)
Hey HN, had a bit of fun "reinventing" logistic regression. I wrote the text myself, but I extensively used LLMs to build the interactive widgets. I've been thinking of a new type of digital book, one full of fun and interactive widgets to really get the point across.

In my experience, I had to start out with a very specific idea, which claude code/codex could one-shot, but then it took some playing around with the result and some back-and-forth to get something that made sense and felt nice to use. I guess we'll always have our humanity.

This is hosted on github pages, so it's "free" to host.

Re:Ask HN: What Are You Working On? (April 2026) on Monday April 13, 2026 @06:46AM (#47750215)
Hey y'all, couple of projects to show off:

https://ragbandit.com - improve the retrieval stage of your RAG systems by tuning your document processing pipeline

https://smolinvoiceagent - an agent that process invoices, you make corrections, the agent learns your ways

https://vendor-simple-central.streamlit.app/ - this is just a POC, but it's a system to process and extract insights from data from amazon's vendor central

This post is really wholesome :)

Re:Ask HN: What Are You Working On? (April 2026) on Monday April 13, 2026 @06:26AM (#47750087)
This is really cool, any challenges in developing this? How did you decide on the directions that you take when writing a word?

Couldn't get the letter constellations working on my end.

Country quizzes is a weak spot of mine, loved that. Would be cool to move the globe! Also, kudos for the bus cataloging!

Re:Ask HN: What Are You Working On? (April 2026) on Monday April 13, 2026 @05:47AM (#47749818)
That sounds really cool, how are you going about this? Are you training a model using your own EEGs as inputs?
Re:Ask HN: What Are You Working On? (April 2026) on Monday April 13, 2026 @05:39AM (#47749762)
I love tiled words, I've actually been doing the daily puzzle for a while, have completed over a 100 of them! It's part of my morning routine :)

I'm not sure if it would fit the theme, but sometimes I end up searching what an expression means, or where does it come from. Maybe it would be cool to have a little info box after you discover what the word is. Just an idea! Not sure if it would clutter things, and you can always search it yourself, but something I've been thinking about. I still remember looking up peanut gallery and sand dollar!

Show HN: Smol Invoice Agent, invoice processor that learns from your corrections

https://smolinvoiceagent.com/

Hey HN, I built a small app, called Smol Invoice Agent.You can upload invoices, have them parsed, and correct the parsed data. The corrections are saved, and the next time you upload a similar invoice, the agent may apply them automatically if they make sense.You can provide feedback on the automatically applied corrections. Rejected corrections are immediately reverted, and you can add an...

( Read More... | no comments | on HN )

Show HN: A tool to create and evaluate document processing pipelines for RAG

https://ragbandit.com

Hey HN, I built [ragbandit](https://ragbandit.com), a tool to help you evaluate different document processing pipelines for the retrieval stage of your RAG systems.I was a bit overwhelmed with the different ways that you can process documents to create embeddings for RAG, so I wanted to create a tool to experiment with different OCR models, refining the OCR results, different chunking methods,...

( Read More... | no comments | on HN )
Very fun game, thanks. When you try to change the speed of the game on mobile using firefox, it glitches and keeps opening the speed modal. Pretty much crashes the browser. Also +1 to the taxi fare not being paid in the currency of the country, but in some other currency. More jobs would be great! Appreciate the difficulty of not knowing exactly where you'll be taken, but without consistent jobs sometimes it's really punishing (or at least feels really punishing). I was thinking it might be cool to add stamina, and fancier hotels may replenish more stamina. An incentive to splurge ah.
Re:Ingesting PDFs and why Gemini 2.0 changes everything on Thursday February 06, 2025 @06:40AM (#42961428)
I'm guessing that human accuracy may be lower or around that value, given that handwritten notes are generally difficult to read. A better metric for document parsing might be accuracy relative to human performance (how much better the LLM performs compared to a human).
Re:The FizzBuzz that did not get me the job on Saturday January 25, 2025 @05:54AM (#42820881)
Cool read! I loved it when you changed the numbers to base 15, I thought that was a beautiful solution.
Re:Ask HN: What's Your Morning Routine? on Monday December 30, 2024 @11:43AM (#42550916)
I feel you, exact same routine here.