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sebastianconcpt

2,155 karma · joined June 16, 2011

SSE. Rust. Full-stack but backend strong. JavaScript, Smalltalk and bits of Swift.

https://github.com/sebastianconcept

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sebastianconcpt··on Show HN: HackerTV – HN's most-recommended Youtube videos as 24/7 TV channels
I love the skeumorphism you put on it!
sebastianconcpt··on Qwen 3.8 27B on my laptop can interpret model weights, too
So LLMs can mind meld... Spock is watching us from the other side very disappointed.

By the way, I'm surprised on how good Qwen3.8-27b is, my custom harness is doing fantastic on it. The only think I wish is having it like x10 faster.

sebastianconcpt··on LLM Voice
This is the consequence of the majority compulsion to communicate in language figures as opposed to concepts.

It's human to do that because it's too dry and unwelcoming to talk in precise concepts disregarding any cognitive friendliness, not to mention do that all the time.

A computer programming in any high level language is concept talking all the time and only us nerds like it :D

Not even that as we form tribes with preferences to one or other computer lang.

Now we're talking less to each other and AI is going to influence us to invent a trillion things that will make understanding diverge and start to become scarce.

sebastianconcpt··on The $6.3B Binance hack was pulled off in just 20 minutes
AI removed the fun even to this.
sebastianconcpt··on Show HN: UI micro interactions prompts for AI
Love it!

Only problem is that now I want all things to have this level of UI

sebastianconcpt··on Rust Style Guide
The good emotions come with the confidence in the engineering quality that it gives you as output (once you overcome the friction, which AI can help you big time to achieve).
sebastianconcpt··on Google's Rust Style Guide
This is a sub-case of the general one that is narrowing the interpretation of things. A big infinite amount of things can be true or false, only one can be a Rust variant.
sebastianconcpt··on Tesla Roadster
The Mother of All Car Demos.
sebastianconcpt··on Artificial intelligence is capitalism's final destination
There is so much information in this opinion...
sebastianconcpt··on I posted to HN, and then my website was flooded with AI bot traffic
Wait until you answer in "Ask HN: Who wants to be hired?" and start receiving hiring phishing emails.
sebastianconcpt··on Choreographic Programming in Rust
Thanks for elaborating, I knew already what it is and is actually adequate architecture for some cases. I just complain at how is explained in an exclusive abstract level instead of an approachable dance of balancing definitions with real word examples to give our brains a break and let them breath bits of real world.
sebastianconcpt··on Choreographic Programming in Rust
I really wish our culture to explain the applicability of the things we invent would be way way waaaay stronger.

Abstractions should be earned.

Not because executing them is expensive but because understanding them is.

sebastianconcpt··on I'm in a Meeting
This is the new BS generator, but more useful
sebastianconcpt··on The Early History of Smalltalk (1993)
Most beautiful computer syntax of the world.

Smalltalk is conceptual-centric in ways that are remarkably deep.

Pity our hardware architectures couldn't give us better hardware support.

Not that they didn't tried:

- Burroughs B5000 (1961)

- Intel iAPX 432 (1981–1986)

- BiiN project (1985–1990)

- Intel i960

- Rekursiv (Linn)

- jHISC ~2005

- MOOSS 2003

- Structural Object Processor (Xilinx)

sebastianconcpt··on Using A.I. to decode communication of sperm whales
The adventures they must be having and things they observed would feel unreal to us.

And of course I can't wait to have the cat translator. That's a big startup idea BTW, just a bit too early still.

sebastianconcpt··on Hole Punch: Sling your spaceship around gravitational fields
Love it. And thanks for the refreshing skeumorphism
sebastianconcpt··on Ask HN: Who wants to be hired? (October 2026)

    Location: Curitiba, Brazil (UTC−3)
    Remote: Yes (only) — 10+ years remote with US / Canada / EU teams
    Willing to relocate: No
    Technologies: Rust, agent harnesses / LLM product engineering (not research)
    Résumé/CV: https://sebastiansastre.co/cv · https://www.linkedin.com/in/sebastiansastre/ · https://github.com/sebastianconcept
    Email: sebastianconcept@gmail.com
Looking for a remote mid or senior IC role with real ownership and preferably Rust-first backends. Distributed systems, fintech/crypto okay, AI infra / agent platforms; open to strong equity on early-stage. A record that matters: between 2009 and 2015 I was a tech founder. Last nine years, three different teams, three different tech stacks, zero production incidents on the high-scale systems I owned. Many of these from zero to prod.
sebastianconcpt··on I don't want the details
A good explanation is not a fix but is a good starting point to a good diagnosis which is the foundation of a good fix.

The issue is when the calls and urgency are raised before making some mental space to even verify that there is enough clarity on what happen and these interrupt the clarification and remediation planning process.

Saying you shouldn't ask "Why did this happen?" and you should ask "What we're changing?" instead is wanting to jump the gun and pretend a required step doesn't exist.

It does exists, is just the executive anxiety reasonable in terms of wanting to be protective of the business but as protective as a family member of a patient wanting a good outcome from the surgeon during the surgery.

Only worst because the surgeon's boss is this anxious family member, and she has a laboral gun pointing to the doctor's neck.

sebastianconcpt··on Show HN: Godot and Rust based multiplexer (terminal panes and more)
You covered design intent now. That made it a great answer, thanks.
sebastianconcpt··on Show HN: Godot and Rust based multiplexer (terminal panes and more)
Can you add a "why?" / "why now?" section? Don't be another project that is a bunch of how that is leaving out to explain why it exists or exemplify what classes of problems it unlocks solutions for (applicability).
sebastianconcpt··on Ask HN: Who wants to be hired? (September 2026)

    Location: Curitiba, Brazil (UTC−3)
    Remote: Yes (only) — 10+ years remote with US / Canada / EU teams
    Willing to relocate: No
    Technologies: Rust, Go, TypeScript/Node, Elixir/Phoenix, Python, PostgreSQL, Kafka, Redis, Docker, AWS/GCP, Next.js / React, agent harnesses / LLM product engineering (not research)
    Résumé/CV: https://sebastiansastre.co/cv · https://www.linkedin.com/in/sebastiansastre/ · https://github.com/sebastianconcept
    Email: sebastianconcept@gmail.com
Looking for a remote senior IC role with real ownership and preferably Rust-first backends. Distributed systems, fintech/crypto okay, AI infra / agent platforms; open to strong equity on early-stage.

A record that matters: nine years, three different teams, three different tech stacks, zero production incidents on the high-scale systems I owned. Many of these from zero to prod.

sebastianconcpt··on Humanity has the debate about AI consciousness backwards
The narcissism of the thesis that places the author as center of the universe and creator of the rest of the consciousnesses "because he cares".

That guy has acute Megalomaniac Solipsism Fever in disguise.

sebastianconcpt··on The Harness Is the Thing
Mine is more granular. I start with a scoping brief before planning. But yeah, I'm all-in in this same thesis.
sebastianconcpt··on I were 17, I'd learn how to build LLMs from scratch
That depth requires math and traditional computing depth. Where is the time to be young and have that depth?
sebastianconcpt··on The planet now has more trees than it did 35 years ago (2018)
How would they be 35% more if water would be a problem for these?
sebastianconcpt··on The planet now has more trees than it did 35 years ago (2018)
Awesome. And remember CO2 is food for plants.
sebastianconcpt··on Don't paste the AI, please
I see you point. You are helping them to connect dots and get unstuck. The case I've raised is actually generic and not specific to one domain. But you can say is scoped on how expert-to-expert can make progress. Or how "precision people" communicate because both agree they are putting hypothesis to the test and there will be one that is a winner (hence "the bet").
sebastianconcpt··on Yes/No/Cancel causes Aspirin sales to soar (2007)
My ambiguity stack overflows...

    _______________________
    | Error.              |
    |_____________________|
    |                     |
    |   Unknown Error     |
    |                     |
    |     (Continue)      |
    |_____________________|
sebastianconcpt··on Don't Paste the AI, please
To "They asked you because they wanted your take on it... Your context, your taste, your judgement." actually I'd ask even for more than that:

For any given <subject> I'd want:

- Your context - your taste - your judgement - clarify what bet <subject> encourages to support - be ready to elaborate your thesis of that bet

With that we have the basic complete building block that used one after another can model a basic lifecycle of a dialogue that can make progress towards something (a goal, a mission, something useful)

sebastianconcpt··on Deus Ex creator Warren Spector is retiring from game development
I've played Deus Ex Human Revolution twice and Mankind Divided once.

HR is the best videogame ever, story, art, music. All golden and aging like wine.

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