Guillermo Ruiz

My friend Christian is swimming 80 km from Tenerife to La Gomera and back. Not for glory, but to support disadvantaged families in Nepal with the Vicente Ferrer Foundation. Every stroke is hope. Proud of his courage, purpose and heart.
Follow live: share.garmin.com/BrazadasSoli...

MetalNES: The Most Accurate NES Emulator Ever Built (And Why Your CPU Still Cries Running It) Most emulators try to pretend to be the original console well enough to get the job done. They skip the messy details, the physics and the silicon.

MetalNES emulates the Nintendo NES transistor-by-transistor.
Same dev who built the fastest NES emulator in the 90s… came back to build the slowest on purpose.
This is not nostalgia.
It’s hardware archaeology.

(And yes, we show how to run it.)

www.linkedin.com/pulse/metaln...

Python 3.14 finally speaks fluent multi-core For over 30 years, Python developers have lived with the same frustration: no matter how many threads you spawn, only one CPU core is really doing the work. This was due to something deep within the i...

For decades, Python said: “Sure, I’ll run all your threads... one at a time.” 😅

Now, with 3.14t (no-GIL), it finally means it. Parallel threads. Multi-core scaling. Real performance gains.

www.linkedin.com/pulse/python...

A sad day. Jane Goodall shaped my passion for nature, along with Jacques Cousteau.
In 1987 she even helped my father’s expedition in DRC, investing all she earned back into primate conservation.

One of a kind. Impossible not to love her.
RIP Jane.

Qualcomm’s Next Act: From Mobile Powerhouse to Data Center Challenger Qualcomm ruled the smartphone chip market for years with Snapdragon. But the company has been quietly evolving, from expanding its CPU design ambitions to preparing for a future in data center GPUs an...

Qualcomm used to be “the Snapdragon company", where phones and mobile dominance were its flagship.

But the story has changed.

From clusters in the cloud to glasses on your face, Qualcomm is trying to build a continuum of compute.

www.linkedin.com/pulse/qualco...

Silicon at Amazon, why it matters, and what Trainium2 really is Cloud used to be about racks and APIs. In the AI era it's about chips, memory, and networks.

Cloud isn’t just racks and APIs anymore. With AI, it comes down to chips, memory, and networks.

I put together a blog on how AWS Trainium2 impacts the game, from scale-up fabrics to memory bandwidth that actually keeps the math engines busy.

www.linkedin.com/pulse/silico...

Last night my eldest had some friends over. When I got home, I found them all deep into the Oculus 2 and 3… future metaverse engineers in training 😂

Reinventing the Rack: Why Oxide Might Be the Most Important Infrastructure Startup You Haven’t Looked At (Yet) More than a decade ago, when AWS was still something we debated in boardrooms, I was on the other side of the fence, helping enterprises build their own private clouds with VCE vBlocks. These were mas...

Reading about Oxide’s $100M Series B took me back to the early vBlock days, when we tried to bring cloud-like experiences on-prem.

Oxide feels like the version we always wanted. Not just servers, but a cloud rack with an engineer’s soul.

Worth watching.

www.linkedin.com/pulse/reinve...

Tracing the Roots of Cloud Computing Today, cloud is almost synonymous with AWS. But in the early 2000s, things looked very different.

Before hyperscale cloud ruled everything, the story was different.

I lived part of it, designing and deploying enterprise cloud regions at CSC. In this blog, I revisit the lessons from those early days, with anecdotes and headaches from the field.

www.linkedin.com/pulse/tracin...

From Ruby to Rust: How Programming Languages Spark Infrastructure Revolutions Some programming languages don’t just help build apps - they define entire eras of infrastructure. In the mid‑2000s, that language was Ruby, driven by Ruby on Rails, which helped accelerate the adopti...

Programming languages don’t just shape applications - they shape infrastructure revolutions. From Ruby on Rails to Rust, here is how they’ve helped in the cloud era and now in the AI space.

www.linkedin.com/pulse/from-r...

Not All AI Needs a GPU Every headline in AI seems to orbit the same gravity well: larger models, faster tokens, and ever more powerful GPUs. From xAI’s Colossus clusters to OpenAI’s 4.

Not all AI needs a GPU.

While the spotlight’s on giant models + GPU farms, real-world AI often runs just fine on CPUs. Docs generators, copilots, lightweight inference on Graviton… efficient, affordable, and overlooked.

www.linkedin.com/pulse/all-ai...

Tech stocks dragged the Nasdaq down today — Nvidia, AMD and Marvell all hit hard.

But Intel surprised everyone, soaring nearly 7% thanks to SoftBank’s $2B bet and possible U.S. government backing.

Sometimes the market flips the script.

Squeezing Every FLOP: The Untold Story of AI GPU Utilization Building AI superinfrastructure isn’t just about raw scale — it’s about turning every GPU cycle into useful work. In our ongoing series on next‑gen AI infrastructure, we started with how AWS engineers...

No more fixed GPU assignments. With Dynamic Resource Allocation on #AmazonEKS, your AI workloads get the GPU power they need, when they need it — boosting efficiency & cutting costs.

www.linkedin.com/pulse/squeez...

#Kubernetes #EKS #GPU #AI #CloudComputing

Scaling Kubernetes for the Age of AI Superinfrastructures In our last post, we explored how AWS is reinventing the way we cool superclusters, with data centers that feel closer to thermodynamic laboratories than traditional server rooms. Cooling thousands of...

From cooling breakthroughs to orchestrating 100K-node Kubernetes clusters on Amazon EKS — see how hyperscale AI infrastructure is built at AWS.

www.linkedin.com/pulse/scalin...

#AWS #EKS #Kubernetes #AI #Cloud #HPC #Scalability #AIInfrastructure

Kubernetes autoscaling done right.
My friend & colleague Christian just wrote the book covering the good, the bad, and “why is this pod even here?” moments from running K8s in production.

Now on pre-order: a.co/d/3xPa3RJ

Trump hits chips with 100% tariffs to force domestic production. Global supply chains shake—Apple pledges $600B to stay in the clear. Welcome to Trade War 2.0.

😂😂 That’s a whole other topic! The kids were blown away to learn you can launch PocketQubes—just 500g!—into space to run experiments. In their minds, satellites were always giant machines. Next stop: SpaceX and Project Kuiper!

My kids asked: “How do weather reporters get those heat maps?”

Couple of hours later we:
- Built a Python satellite tracker on a Raspberry Pi
- Planned an SDR ground station to capture real NOAA/METEOR images

All from one curious why? 🚀 #STEM #ArmDeveloper

Cooling the Future: Why AWS Invented a New System for the AWS P6e-GB200 UltraServer In our mission to offer the best place to run applications — not just today, but in the era of trillion-parameter models — we knew the NVIDIA Blackwell launch on AWS had to be more than fast GPUs at s...

AWS is reinventing datacenter cooling for the AI era.

Meet IRH‑X, a custom liquid cooling system built to handle the heat of trillion‑parameter models — with a nod to hollow core fiber and Blackwell UltraServers.

🔗 www.linkedin.com/pulse/coolin...

GitHub - popovicu/mrav-cpu: A fully automated, custom CPU and software stack for tiny embedded systems A fully automated, custom CPU and software stack for tiny embedded systems - popovicu/mrav-cpu

Ever wanted to build a CPU from scratch?

Check out Mrav by Uros Popovic – a tiny 16‑bit CPU with only 16 instructions!
• Bazel toolchain + Go sim
• FPGA‑ready SystemVerilog
• Browser‑based assembler

Perfect playground for hardware hackers.

github.com/popovicu/mra...

The Age of Super Infrastructures: Colossus vs Stargate A few years ago, we were amazed by hyperscale cloud regions. Today, we’re witnessing the rise of hyperscale AI universes.

Colossus vs. Stargate: The dawn of #SuperInfrastructures.
AI clusters moving from megawatts to gigawatts, SMRs powering the future, and AWS quietly building the most efficient ecosystem.
We’re not just running models — we’re architecting a silicon civilization.

www.linkedin.com/pulse/age-su...

Private visit to the historic Tío Pepe cellars.
The most inspiring spot wasn’t the barrels, but the founder’s dusty corner of experiments — a quiet lab where innovation met patience.

M8.8 earthquake off the coast of Kamchatka (21 km depth) detected 9567 km away!
- P & S waves clearly visible
- Strong energy in 0.7–2.0 Hz band
- Classic megathrust signature: shallow, powerful, and cleanly captured

#Earthquake #Seismology #Kamchatka #RaspberryShake

What are the chances? You go in for a stress test with a cardiologist… and it turns out his son works at AWS!

What If AMD Had Won the Cloud Gaming War? There was a moment in my career — at a previous company — where we seriously considered building a gaming infrastructure fabric powered entirely by AMD: CPU + Radeon GPU, fully optimized and cost-effi...

We once explored building a gaming fabric on AMD (CPU + Radeon). Gaming studios loved it—until hyperscaler realities got in the way.
Now, with MI300X, EPYC Genoa & ROCm maturing… is AMD finally having its moment?

www.linkedin.com/pulse/what-a...

EPROMINT: The DIY CPU That Plays The Matrix A few nights ago, I stumbled upon a project that instantly made me think of my friend Darko Mesaros. If you've ever seen his live coding sessions, you know he's the kind of person who appreciates the ...

A handmade CPU. No IDE. No Git. No CI/CD. Just EPROMs, solder, and 1,800 lines of code.

EPROMINT isn’t just a CPU — it’s a love letter to old-school computing. Proof that with curiosity and wire, you can build magic without a billion-dollar fab.

www.linkedin.com/pulse/epromi...

From Microcontrollers to Megawatts: How Arm Quietly Took Over the Data Center A few years ago, Arm was mostly associated with smartphones, Raspberry Pi boards, and low-power IoT devices. Fast forward to today, and it's powering hyperscale data centers, enterprise-grade workload...

While everyone’s chasing GPU clusters, Arm has been quietly slipping into the heart of the datacenter.

Less heat. Lower cost. More performance-per-watt.

It’s not a side story — it’s the new foundation.

www.linkedin.com/pulse/from-m...

#Arm #Datacenter #EfficientCompute #ArmDeveloper

New blog: Open Hardware vs Patent Saturation
Is the open hardware movement under threat?
From MMUs to shady patents, here’s a deep dive into what’s really at stake.

Inspired by @josefprusa ’s letter—with a personal twist.

www.linkedin.com/pulse/open-h...

Watching top engineers leave and reading the latest Intel headlines made me reflect:

What would you do if you had to reinvent a giant mid-fall?

Here’s my take on how Intel could rise again — if it dares to rethink everything.

www.linkedin.com/posts/gruize...

On these hot summer nights, it’s the tropical evenings under the stars that bring peace. Just a few months ago, Amazon had 2 satellites — now there’s a whole wave lighting up the sky. Love it! @projectkuiper.bsky.social