Paulo Matos
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p.ocmatos.com
Paulo Matos
@p.ocmatos.com
Igalian working on FEX-Emu, Proud Father of 2, AWA IRONMAN Triathlete. All opinions are my own or my children's - if they got hold of my phone. Uke Player - Aspiring Pianist.
LLMs write code fast, but how do you trust it? Unit tests only cover paths you think to test. Bounded model checking exhaustively explores all paths and gives mathematical proofs when it finds bugs.

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February 13, 2026 at 8:42 PM
Reposted by Paulo Matos
I built two new tools to help coding agents demonstrate their work beyond just running automated tests: Showboat and Rodney simonwillison.net/2026/Feb/10/...
Introducing Showboat and Rodney, so agents can demo what they’ve built
A key challenge working with coding agents is having them both test what they’ve built and demonstrate that software to you, their overseer. This goes beyond automated tests—we need artifacts …
simonwillison.net
February 10, 2026 at 5:51 PM
Absolutely awesome to see CCC side by side with the other oldies but goodies compilers. I am pretty confident GCC and Clang were the last breed of popular C compilers written by humans!
We just added CCC to @compiler-explorer.com - Claude's C Compiler. And what fitting way but to have gotten Claude to added itself to CE... @anthropic.com - added a build to our builder, added it to our daily builds, added the installation, the configuration, and tested it in staging. Nice!
February 8, 2026 at 10:03 PM
Reposted by Paulo Matos
The EC is putting together an initiative to develop their strategy for open digital ecosystems. Given its potential to push forward the development and funding of open-source software in Europe and beyond, Igalia submitted a response with some suggestions. Read more: www.igalia.com/2026/02/03/I...
Igalia's Response to the European Commission on the Open Digital Ecosystem Strategy | Igalia
Igalia is an open source consultancy specialised in the development of innovative projects and solutions. Our engineers have expertise in a wide range of technological areas, including browsers and cl...
www.igalia.com
February 3, 2026 at 3:50 PM
Reposted by Paulo Matos
I found it online. A beautiful read. Letter: Where mortality is recast as an engineering problem share.google/7PbFNG4WPgtB...
Letter: Where mortality is recast as an engineering problem
From Dr Sasi S Senga, Neurosurgical Oncologist; Former Programme Director, Molecular Genetics & Ethics, Stanford University
share.google
February 4, 2026 at 10:01 AM
If you are in Nuremberg or surroundings, consider joining our meetup group to discuss the implications of AI in the marketplace. No matter your profession - lets get together, chat and have some fun! #nuremberg #meetup #vibe

Join us at www.meetup.com/vipers-vibe-...
Vipers Meetup Nuremberg — Vibe Engineering & Agentic AI | Meetup
Where professionals explore vibe coding, agentic AI, and the new wave of AI-augmented work. Bimonthly in Nuremberg.The way we build software is changing fast. Entire applications are being vibe-coded ...
www.meetup.com
February 4, 2026 at 5:51 PM
The @GoogleDeepMind podcast with Hanna Fry is absolutely amazing and under-hyped. If you want an episode to start with go with the interview with Shane Legg. www.youtube.com/watch?v=l3u_...
The arrival of AGI | Shane Legg (co-founder of DeepMind)
YouTube video by Google DeepMind
www.youtube.com
February 4, 2026 at 7:39 AM
Reposted by Paulo Matos
Programming in 2026:
January 27, 2026 at 12:54 PM
Reposted by Paulo Matos
The latest entrant in the coding-agent-constructed web browsers is here, this one by @emsh.cat, and it's REALLY impressive - 3 days of development, 20,000 lines of Rust, no Cargo dependencies and it renders HTML+CSS extremely well
simonwillison.net/2026/Jan/27/...
One Human + One Agent = One Browser From Scratch
embedding-shapes was so infuriated by the hype around Cursor's FastRender browser project - thousands of parallel agents producing ~1.6 million lines of Rust - that they were inspired to take …
simonwillison.net
January 27, 2026 at 5:00 PM
Reposted by Paulo Matos
I had a fascinating conversation with Wilson Lin about FastRender, the browser rendering engine he built with the help of 2,000+ coding agents over the past few weeks. It's 47m on YouTube or you can read my highlights here: simonwillison.net/2026/Jan/23/...
Wilson Lin on FastRender: a browser built by thousands of parallel agents
Last week Cursor published Scaling long-running autonomous coding, an article describing their research efforts into coordinating large numbers of autonomous coding agents. One of the projects mention...
simonwillison.net
January 23, 2026 at 9:35 PM
Reposted by Paulo Matos
Really wishing that somebody would hire my company (@igalia.com) to standardize/implement support for import maps in web workers.

I already have a draft spec PR ready and there is interest from the community, which company wants to be the hero funding pushing it forward? :)
Support import maps in workers by nicolo-ribaudo · Pull Request #10858 · whatwg/html
This patch started as a conversation with @guybedford. I tried writing some spec for one of the potential approaches discussed in WICG/import-maps#2. This PR is not actually ready as I have not fin...
github.com
January 23, 2026 at 12:31 PM
Reposted by Paulo Matos
Amazing work on an Erdős problem (whose original statement needed to be tweaked), demonstrating the power of AI-assisted proving in math. mathstodon.xyz/@tao/1158558...
Terence Tao (@tao@mathstodon.xyz)
Recently, the application of AI tools to Erdos problems passed a milestone: an Erdos problem (#728 https://www.erdosproblems.com/728) was solved more or less autonomously by AI (after some feedback…
mathstodon.xyz
January 19, 2026 at 1:58 PM
Reposted by Paulo Matos
Lean Together 2026 starts today! It'll be four days of juicy Lean stuff. It's a remote-only conference, so feel free to join. See you there! leanprover-community.github.io/lt2026/
Home
A meeting all about Lean
leanprover-community.github.io
January 19, 2026 at 9:24 AM
Reposted by Paulo Matos
Really alarming to see this story of "LLM psychosis".I first saw it in a video by Nate Jones. It looks like there's an attempt to solve the wildly difficult Navier-Stokes problem, backed up by a Lean formalization. youtu.be/AzOJ9QLgfIk
If This Can Happen to an Ex-DeepMind Leader, It Can Happen to You
My site: https://natebjones.com Full Story w/ Self-Audit Framework:…
youtu.be
January 10, 2026 at 1:58 PM
Reposted by Paulo Matos
Claude Code helps me so much with the household chores. The dishes get washed more frequently, the apartment is appreciably tidier, the vacuum cleaner spends an above-average amount of time turned on, the trash gets taken out more quickly.
January 10, 2026 at 9:24 AM
Reposted by Paulo Matos
We''ve landed a few more talks since the last update!

* Sorrachai Yingchareonthawornchai: The CSLib initiative
* Simon Sorg: Machine learning for Lean
* Jannis Limperg on Lean metaprogramming for AI
* Will Turner on the new ProofBench effort

Come join us for a day of #lean! leaning.in
Leaning In! 2026
A workshop for the Lean community - Thursday, March 12, 2026
leaning.in
December 8, 2025 at 10:16 AM
Reposted by Paulo Matos
Incredible results with #lean and Gemini Deep Think by Tao in the Erdős Problem. It feels like a lot of doors in the formalization space, whether that's math or hardware/software verification, are opening quickly. mathstodon.xyz/@tao/1155914...
Terence Tao (@tao@mathstodon.xyz)
Over at the Erdos problem website, AI assistance is now becoming routine. Here is what happened recently regarding Erdos problem #367 https://www.erdosproblems.com/367 : 1. On Nov 20, Wouter van…
mathstodon.xyz
November 26, 2025 at 1:58 PM
Reposted by Paulo Matos
Valve’s announcements last week about their new hardware were particularly welcome here at Igalia: a lot of our work will be in those machines. From translation layers to better frame rates and longer battery life, we’ve helped @valvesoftware.com push gaming forward. www.igalia.com/2025/11/help...
Helping Valve to Power Up Steam Devices | Igalia
Igalia is an open source consultancy specialised in the development of innovative projects and solutions. Our engineers have expertise in a wide range of technological areas, including browsers and cl...
www.igalia.com
November 21, 2025 at 4:26 PM
Now that this is publicly announced I can say it has been delightful to be part of the small team of contributors to FEX, bringing you x86 games to ARM64 hw - now integrated into the Steam Frame.
Announcing: New @steampowered.com Hardware, coming in 2026:

Steam Controller
Steam Machine
Steam Frame. 

Watch our jazzy announcement video and wishlist now: steampowered.com/hardware
Steam Hardware
The Steam Hardware family officially expands in early 2026.
steampowered.com
November 13, 2025 at 10:21 AM
Reposted by Paulo Matos
Announcing: New @steampowered.com Hardware, coming in 2026:

Steam Controller
Steam Machine
Steam Frame. 

Watch our jazzy announcement video and wishlist now: steampowered.com/hardware
Steam Hardware
The Steam Hardware family officially expands in early 2026.
steampowered.com
November 12, 2025 at 6:03 PM
After Halloween comes Christmas, right? #lego #christmas
November 1, 2025 at 9:44 AM
It's coming together! Vroom, vroom... #lego #technic
October 31, 2025 at 9:05 AM
It's coming together! Vroom, vroom... #lego #technic
October 31, 2025 at 9:03 AM
Reposted by Paulo Matos
x86-64 Playground – An online assembly editor and GDB-like debugger https://x64.halb.it/ (https://news.ycombinator.com/item?id=45646958)
X86-64 playground
An online assembly editor, emulator, and debugger for the x86-64 architecture. Learn and experiment with assembly and system internals directly in your browser—no setup required
x64.halb.it
October 20, 2025 at 8:39 PM
Yes, this is what you think it is...
October 9, 2025 at 2:50 PM