Roelof Blom

Narrow the focus

[Roelof Blom @roelofblom]

@IgorZIJ 👏🏻 awesome

[Drew Hahn @drewhahn]

"hey codex can you just move the text slightly to the right"

gpt-5.6-sol xhigh:

[Roelof Blom @roelofblom]

@ArmandGirbes @DilanYesilgoz Er gaat geen dag voorbij zonder nieuwe regels

[EU Council @EUCouncil]

From today, new EU rules apply to all packaging placed on the EU market.

They cover design, composition, reuse and recycling — with obligations phased in through to 2030 and beyond.

What changes, and when ⬇️
https://t.co/XbL7xVJ58m

[Garry Kasparov @Kasparov63]

Another murder of an innocent young person in Iran and another day of deafening silence by the mainstream Western media. Actually, not a complete silence -- there is the sound of outlets practically cheering Iranian success in the Trump's botched war. Don't do this. Don't let your dislike of Trump or the war blind you to the dangers and horrors of the Islamic Republic's terrorist regime.

[Alastair Hilton @London_W4]

And now I’m here in Trafalgar Square in London on this gorgeous Monday morning. For nearly two hundred years, this square has been open, but because of the recent mental health condition that affects Muslims, causing them to shout Allahu Akbar before driving their vehicles into crowds of innocent people to kill them, we have to have these barriers. Here and on every bridge in London. Every single public place. Because solving the mental health condition would be very difficult so this is how we have to live now. Remember though boys and girls: diversity is our strength.

[Roelof Blom @roelofblom]

@kunchenguid It’s great Kun, thank you for this.

[Gergely Orosz @GergelyOrosz]

If you work in tech, you will want to read the ~40-page short novel Profession by Isaac Asimov, from 1957.

An unusually intelligent youngster decides they want to be a Registered Computer Programmer as demand for that profession is the highest of all. But he gets rejected... and even though the story was written 70 years ago, it's as if it described the world that could happen with AI, and who the most valuable people of such a world could be.

(thanks @ritakozlov for the recommendation!)

[Roelof Blom @roelofblom]

@Denkjewel Dik wachtgeld pikken

[Roelof Blom @roelofblom]

@DevliegerErik Stuiptrekkingen voor het einde

[Roelof Blom @roelofblom]

/bro

[Myk is Walking Backwards @mykola]

me, begging, crying, on my knees: "Please just use plain english, I don't understand what you're saying."

Claude: "The right fix, and the book's lesson applies: the tutorial rotted as a front door because a front door full of claims always rots. So the new root holds only what's timeless — the thesis and three doors — and every claim lives behind it in the thing that goes red when stale."

[Astraia @AstraiaAI]

The situation has reached that level of seriousness. This is a black-and-white battle between good and evil.

Anthropic's attempt to silently undermine AI Research by leveraging Claude's position in the market has already shown beyond any reasonable doubt what they intend to do if they are allowed to become a monopoly.

We should be very careful with these people. The more viable alternatives there are to Anthropic, the better it is for humanity as a whole.

[Alex Veremeyenko @alex_verem]

i'm obsessed with what's happening in AI reforestation right now

this Franco-Brazilian startup called MORFO took a patch of land in Brazil that was rock-hard and compacted from years of cattle farming. they replanted it using a single drone. months later the ground was covered in grass, bushes, and small trees. the land came back to life.

here's how the whole thing works.

1. drones scan the terrain with high-resolution cameras and sensors
2. AI analyzes the imagery alongside soil samples, moisture levels, slope, and surrounding vegetation
3. the system picks from a catalog of 300+ native species, deciding exactly which plants will thrive in which specific spot
4. the drone fires biodegradable seed pods packed with seeds, nutrients, and moisture at 180 capsules per minute
5. satellite and drone imagery monitors regrowth over time, with AI tracking vegetation cover and biodiversity
6. two people and one drone cover 50 hectares a day. a person planting by hand manages about one hectare.

and MORFO isn't alone. AirSeed in Australia drops 250,000 seed pods per day into bushfire-scarred koala habitat, replanting swamp mahogany that koalas depend on to survive. Flash Forest in Canada fires 50,000 pods daily into wildfire-destroyed boreal forest, planning the replanting alongside Cree Indigenous communities. re-green won Prince William's Earthshot Prize after planting 6 million seedlings across 30,000 hectares of Amazon and Atlantic Forest.

five companies across four continents built this same approach independently. nobody coordinated. the physics of the problem demanded it.

knowing which seeds belong in which soil used to require years of ecological fieldwork, manual planting crews, and budgets that made large-scale restoration nearly impossible. now two people with a drone and an AI model trained on local soil data can replant 50 hectares before lunch.

this is the AI work that'll still matter in 50 years.

[Roelof Blom @roelofblom]

@kunchenguid It’s really good

[Roelof Blom @roelofblom]

@DerekNee Can I try?

[Derek Nee @DerekNee]

introducing matrix.

the ultimate multi-agent runtime that turns your product into actual revenue and automates 99% of what it takes to run a company.

probably the most different, most future-feeling agent product you've ever seen. the harness, the interface, everything is rebuilt from scratch.

think of it as the complement to codex and claude code. they write the code. matrix does literally everything else you actually need done. plug in your codex subscription and run it for free, or byok. fully free either way.

this video was edited by matrix and voiced by an agent. more real cases coming soon.

matrix is in beta preview right now. full launch next week.

retweet + comment and we'll send invite codes to the first 200.

[Òscar Merino 🎙🏀 @OMerinoG]

Brutal

[Cheng Lou @_chenglou]

My dear front-end developers (and anyone who’s interested in the future of interfaces):

I have crawled through depths of hell to bring you, for the foreseeable years, one of the more important foundational pieces of UI engineering (if not in implementation then certainly at least in concept):
Fast, accurate and comprehensive userland text measurement algorithm in pure TypeScript, usable for laying out entire web pages without CSS, bypassing DOM measurements and reflow

[Peter Pistorius @appfactory]

TLDR; GH actions, but for agents. ~0ms cache, retry-on-failure, insanely fast.

Agents need validation. CI is the last defense. They shouldn't bother you unless everything is green!

GH Actions is usually in the top-5 expenses for dev-teams. Add agents to that mix? It'll easily double. It's the wrong tool for the right job: Slow boot, slow cache, retrieving logs is token expensive for agents, the list goes on...

So I built a tool with one amazing feature: live-reload for failures. Agent-CI is a local CI runner.

I tweaked the control pane and mounts to provide 0ms caching, insanely fast boots. When a step fails it pauses, provides the agent with the failure, and waits for the agent to fix and retry just that step.

It uses the standard GH Actions image (via Docker), but emulates the control pane via a local HTTP server. You don't have to change any of your existing GH workflows.

Tighter loops. Greener builds. Less babysitting. (Demo below.)

[0xSero @0xSero]

https://t.co/txDnDa0Flf

[Roelof Blom @roelofblom]

@theplgeek @opencode great stuff!