Daniel Fosco
@danielfos.co
software designer @github.com • big nerd • skateboarder • opinions my own etc • danielfos.co on the web • 🇧🇷🇳🇱
Reposted by Daniel Fosco
Back in the 2000s, Orkut was the biggest social network in Brasil, but their DM system was unusable.
People started using their testimonials feature (think LinkedIn recommendations, but for praising your friends) as a message system, since the request itself was private.
People started using their testimonials feature (think LinkedIn recommendations, but for praising your friends) as a message system, since the request itself was private.
This reminds me of a colleague who used to use Monzo as a chat app by sending £0.01 to a friend and using the reference field as the message. You get the money back when they reply. They send thousands of messages back and forth.
I ran a fairly large blog commenting platform in ~2001 and was taken by surprise when performance tanked because some blog entries suddenly had tens of thousands of comments.
Turns out Japanese teenagers were picking a random blog each day and using the comments as a chatroom.
Turns out Japanese teenagers were picking a random blog each day and using the comments as a chatroom.
December 23, 2025 at 9:48 AM
Back in the 2000s, Orkut was the biggest social network in Brasil, but their DM system was unusable.
People started using their testimonials feature (think LinkedIn recommendations, but for praising your friends) as a message system, since the request itself was private.
People started using their testimonials feature (think LinkedIn recommendations, but for praising your friends) as a message system, since the request itself was private.
Reposted by Daniel Fosco
a required skill for being able to use an LLM in any professional capacity is discernment, essentially already being an expert in the field so you know when (and why) its outputs are incorrect.
now, LLMs are being deployed to non-expert groups in a way that ensures they will never *be* experts
now, LLMs are being deployed to non-expert groups in a way that ensures they will never *be* experts
suspect a big reason why many academics and others who work in areas where getting facts RIGHT is key are disinterested in using LLMs for research:
they’ve tried it, they keep noticing major errors in output, and they conclude that having to verify all that doesn’t actually save them time.
they’ve tried it, they keep noticing major errors in output, and they conclude that having to verify all that doesn’t actually save them time.
December 21, 2025 at 5:11 PM
a required skill for being able to use an LLM in any professional capacity is discernment, essentially already being an expert in the field so you know when (and why) its outputs are incorrect.
now, LLMs are being deployed to non-expert groups in a way that ensures they will never *be* experts
now, LLMs are being deployed to non-expert groups in a way that ensures they will never *be* experts
posso confirmar, entrou e limpou mesmo
December 21, 2025 at 7:36 PM
posso confirmar, entrou e limpou mesmo
Reposted by Daniel Fosco
Reposted by Daniel Fosco
You're mad because you expect a "software update" to make things work better. You will only be free when you understand this to be an illusion and accept the fact that software is suffering
December 19, 2025 at 2:27 PM
You're mad because you expect a "software update" to make things work better. You will only be free when you understand this to be an illusion and accept the fact that software is suffering
Reposted by Daniel Fosco
My response to anything over the next two weeks
December 18, 2025 at 6:10 PM
My response to anything over the next two weeks
Reposted by Daniel Fosco
My book, "The Staff Designer", was officially published by @rosenfeldmedia.com this week! 200+ pages of IC design leadership advice including personal experience and 20+ interviews with staff designers & managers ✨
It's performance reviews season. Get you a copy: rosenfeldmedia.com/books/the-st...
It's performance reviews season. Get you a copy: rosenfeldmedia.com/books/the-st...
December 12, 2025 at 5:53 AM
My book, "The Staff Designer", was officially published by @rosenfeldmedia.com this week! 200+ pages of IC design leadership advice including personal experience and 20+ interviews with staff designers & managers ✨
It's performance reviews season. Get you a copy: rosenfeldmedia.com/books/the-st...
It's performance reviews season. Get you a copy: rosenfeldmedia.com/books/the-st...
Reposted by Daniel Fosco
No accounts. No logins. No patches. No DLC. Just the game.
December 14, 2025 at 12:02 PM
No accounts. No logins. No patches. No DLC. Just the game.
Reposted by Daniel Fosco
December 13, 2025 at 4:59 AM
Reposted by Daniel Fosco
I'll say it again: It is a genuinely hard problem to train a robot to wash dishes, cook food, or do laundry. These tasks all require complex embodied forms of intelligence we don't understand. Compared to that, writing passable code or generating meh prose is incredibly easy for a computer to do.
December 14, 2025 at 1:40 PM
I'll say it again: It is a genuinely hard problem to train a robot to wash dishes, cook food, or do laundry. These tasks all require complex embodied forms of intelligence we don't understand. Compared to that, writing passable code or generating meh prose is incredibly easy for a computer to do.
Reposted by Daniel Fosco
Reposted by Daniel Fosco
I put together a detailed collection of useful patterns I've collected after vibe-coding 150 different single-file HTML tools over the past couple of years simonwillison.net/2025/Dec/10/...
Useful patterns for building HTML tools
I’ve started using the term HTML tools to refer to HTML applications that I’ve been building which combine HTML, JavaScript, and CSS in a single file and use them to …
simonwillison.net
December 10, 2025 at 9:08 PM
I put together a detailed collection of useful patterns I've collected after vibe-coding 150 different single-file HTML tools over the past couple of years simonwillison.net/2025/Dec/10/...
Reposted by Daniel Fosco
goose is migrating to a new home 🎉
Block, Anthropic, and OpenAI have founded the Agentic AI Foundation
This brings together goose, MCP, and AGENTS․md under
the Linux Foundation.
Time to fly in formation. The flock just got a lot bigger.
block.xyz/inside/block...
Block, Anthropic, and OpenAI have founded the Agentic AI Foundation
This brings together goose, MCP, and AGENTS․md under
the Linux Foundation.
Time to fly in formation. The flock just got a lot bigger.
block.xyz/inside/block...
Block, Anthropic, and OpenAI Launch the Agentic AI Foundation
Block, Anthropic, and OpenAI have launched the Agentic AI Foundation (AAF). Learn about this new non-profit organization dedicated to making agentic AI safe, accessible, and beneficial for everyone.
block.xyz
December 9, 2025 at 5:23 PM
goose is migrating to a new home 🎉
Block, Anthropic, and OpenAI have founded the Agentic AI Foundation
This brings together goose, MCP, and AGENTS․md under
the Linux Foundation.
Time to fly in formation. The flock just got a lot bigger.
block.xyz/inside/block...
Block, Anthropic, and OpenAI have founded the Agentic AI Foundation
This brings together goose, MCP, and AGENTS․md under
the Linux Foundation.
Time to fly in formation. The flock just got a lot bigger.
block.xyz/inside/block...
Reposted by Daniel Fosco
MORPHEUS: They're coming for you, Neo. I can guide you, but you must do exactly as I say. Take the elevator to the lobby and go to the CVS across the street. Purchase 5 Steam gift cards at $200 each. Scratch off the protective coating on the back and tell me the fifteen digit redemption codes. Hurry
August 23, 2025 at 9:57 PM
MORPHEUS: They're coming for you, Neo. I can guide you, but you must do exactly as I say. Take the elevator to the lobby and go to the CVS across the street. Purchase 5 Steam gift cards at $200 each. Scratch off the protective coating on the back and tell me the fifteen digit redemption codes. Hurry
Reposted by Daniel Fosco
can't stop watching this clip of a tesla Optimus teleoperator taking his headset off before properly logging out the robot
December 8, 2025 at 9:29 AM
can't stop watching this clip of a tesla Optimus teleoperator taking his headset off before properly logging out the robot
Picture of the staff who operate my Bluesky account
December 7, 2025 at 8:04 PM
Picture of the staff who operate my Bluesky account
Reposted by Daniel Fosco
My dad abhors any negative comments about immigrants. Asked him recently why he’s so strong on it: ‘Because we’re always happy to take the rich and clever ones. Which means it’s not about disliking immigrants. It’s about disliking the poor and vulnerable. And that’s a bad human instinct.’
December 7, 2025 at 8:31 AM
My dad abhors any negative comments about immigrants. Asked him recently why he’s so strong on it: ‘Because we’re always happy to take the rich and clever ones. Which means it’s not about disliking immigrants. It’s about disliking the poor and vulnerable. And that’s a bad human instinct.’
Reposted by Daniel Fosco
Any product designers looking for work right now?
I got a role open near me:
job-boards.greenhouse.io/launchdarkly...
I got a role open near me:
job-boards.greenhouse.io/launchdarkly...
Senior Product Designer (UX)
Remote - US
job-boards.greenhouse.io
December 6, 2025 at 7:55 AM
Any product designers looking for work right now?
I got a role open near me:
job-boards.greenhouse.io/launchdarkly...
I got a role open near me:
job-boards.greenhouse.io/launchdarkly...
Reposted by Daniel Fosco
I’m often asked for freelance UI/UX designer recommendations, but my list is out of date — most folks I used to refer are now full-time or doing other work.
Time to fix that.
If you’re an independent UI/UX designer doing hands-on client work, drop your website/portfolio! DM/email fine too.
[1/2]
Time to fix that.
If you’re an independent UI/UX designer doing hands-on client work, drop your website/portfolio! DM/email fine too.
[1/2]
November 30, 2025 at 6:46 PM
I’m often asked for freelance UI/UX designer recommendations, but my list is out of date — most folks I used to refer are now full-time or doing other work.
Time to fix that.
If you’re an independent UI/UX designer doing hands-on client work, drop your website/portfolio! DM/email fine too.
[1/2]
Time to fix that.
If you’re an independent UI/UX designer doing hands-on client work, drop your website/portfolio! DM/email fine too.
[1/2]
Reposted by Daniel Fosco
Sometimes you’ve gotta let @rafa.design roll out the green screen and talk about his favorite Sketch updates. Is it entertaining? Yes. Is it informative? Yes. Will we be asking him again? Absolutely.
December 1, 2025 at 3:12 PM
Sometimes you’ve gotta let @rafa.design roll out the green screen and talk about his favorite Sketch updates. Is it entertaining? Yes. Is it informative? Yes. Will we be asking him again? Absolutely.
Reposted by Daniel Fosco
This thing where we engaged in commerce once and now you get to email me for the rest of my life needs to stop.
November 30, 2025 at 3:52 PM
This thing where we engaged in commerce once and now you get to email me for the rest of my life needs to stop.
Reposted by Daniel Fosco
Hey all, I'm seeking a new job. 👋
If you have any leads or connections 👉 that would be much appreciated.
More details of what I'm looking for in the attached screenshot with alt text as that would be too long for a post.
If you have any leads or connections 👉 that would be much appreciated.
More details of what I'm looking for in the attached screenshot with alt text as that would be too long for a post.
November 24, 2025 at 3:21 PM
Hey all, I'm seeking a new job. 👋
If you have any leads or connections 👉 that would be much appreciated.
More details of what I'm looking for in the attached screenshot with alt text as that would be too long for a post.
If you have any leads or connections 👉 that would be much appreciated.
More details of what I'm looking for in the attached screenshot with alt text as that would be too long for a post.
Reposted by Daniel Fosco
Really wild situation here: a celebrated and well-regarded indie dev and publisher is facing shutdown because Valve banned their game from Steam and won't talk to them about it, at all.
www.ign.com/articles/uns...
www.ign.com/articles/uns...
Unsettling Horror Game Horses Banned From Steam, Leaving Studio With 'High Risk' of Closure - IGN
Indie horror game Horses is preparing to launch on December 2, on the Epic Games Store, GOG, Itch.io, and the Humble Store. But one place it won't be is on Steam, because Steam has banned the game for...
www.ign.com
November 25, 2025 at 5:25 PM
Really wild situation here: a celebrated and well-regarded indie dev and publisher is facing shutdown because Valve banned their game from Steam and won't talk to them about it, at all.
www.ign.com/articles/uns...
www.ign.com/articles/uns...
Reposted by Daniel Fosco
Kickstart the flywheel, Shinji. Or Rei will have to operationalize our core competencies again.
November 25, 2025 at 4:44 PM
Kickstart the flywheel, Shinji. Or Rei will have to operationalize our core competencies again.