Andrea Matesi

IT, digital assets, and finance reply guy 😁

[Andrea Matesi @amatesi]

Second #Solana Mobile phone with inbuilt TPM for crypto assets in 2025?!

Let's give it a try, shall we?

Referral for extra bonuses:
https://t.co/A5m1dHYoyq

[Solana @solana]

The Saga continues with @solanamobile...and the story is just beginning.

#Chapter2 starts now. 👀👇

[Andrea Matesi @amatesi]

@messedupfoods Why have I watched the times?!

[Andrea Matesi @amatesi]

@Suffragent_ Did he say last mention the name of the victim in the second instance?

[Andrea Matesi @amatesi]

@MarkoMatvikov Common sentiment can't disagree

[Spencer Baggins @bigaiguy]

A teenager in the United States started publishing software at 14 in 1998, built the entire online infrastructure for the Occupy Wall Street movement in 2011, joined Google as a software engineer, quit in 2018, and then spent five years writing a C library that does something the entire industry said was impossible.

Then she combined it with llama.cpp and shipped the easiest way on the planet to run a large language model on any computer.

Her name is Justine Tunney.

Here is the story, because almost nobody outside the low level systems world knows what one engineer has built.

Justine was born in 1984. She started writing and publishing software at 14, back when distribution meant uploading binaries to BBS systems and chat networks. She picked up the handle jart, which she still uses on GitHub today. She did the work most teenagers her age were not doing. She read the systems programming literature. She studied compilers. She fell in love with C.

In July 2011 she registered the @occupywallst Twitter handle and the occupywallst dot org domain. Within weeks the protest movement that began in Zuccotti Park in New York had become a global phenomenon, and her infrastructure was the digital backbone of the entire thing. She handled the social media, the website, the donations, the coordination. She built the platform that pushed the movement to reach millions.

After Occupy she joined Google as a software engineer. She worked on TensorBoard, the visualization tool for TensorFlow, and on site reliability for Google infrastructure. She stayed for years. Then in 2018 she left Google Brain to work on a personal project.

The project was called Cosmopolitan Libc.

Cosmopolitan does something most C programmers would tell you is mathematically impossible. It lets you compile a C program once and have the resulting binary run natively on Linux, Windows, macOS, FreeBSD, OpenBSD, and NetBSD with no modification. One file. Six operating systems. No virtual machines. No interpreters. No recompilation. The technique she invented is called Actually Portable Executable.

The implications are wild. Cosmopolitan binaries violate every assumption about how operating systems load programs. They are at once a Windows PE file, a Linux ELF binary, a macOS Mach-O binary, and a shell script. The same bytes run on every platform.

For five years she worked on it mostly alone. She funded the development partly through Mozilla's MIECO program, which sponsored her work on Cosmopolitan 3.0, released on October 31, 2023.

A month later she shipped llamafile.

llamafile is what happens when you combine Cosmopolitan with llama.cpp. You take any LLM weights file in the standard GGUF format, you wrap it in Justine's binary, and you get a single file that runs on six operating systems without installation. No Python. No CUDA setup. No dependency hell. Just one file that you double click and it works.

Mozilla launched it as an official project of their innovation group on November 29, 2023. It went viral immediately. The repository, hosted at github .com/mozilla-ai/llamafile, now has 24,600 stars. The license is Apache 2.0.

Justine kept shipping. She added GPU support to Cosmopolitan, a task systems engineers thought would require rewriting the whole thing. She added dlopen support, another thing nobody else had figured out. She wrote whisperfile, a single file version of OpenAI's Whisper speech-to-text model based on the same architecture.

Her GitHub profile lists projects most engineers would consider impossible. sectorlisp, a Lisp interpreter that fits in a boot sector. blink, the tiniest x86-64-linux emulator on Earth. bestline, a teletypewriter command session library. redbean, a complete web server inside a single zip file.

A teenager who shipped software in 1998 grew up to write the C library that the entire local AI movement now runs on top of.

She did most of it alone, and most people scrolling AI Twitter cannot name her.

[Andrea Matesi @amatesi]

@zekramu insightful write-up, thanks👍

[Andrea Matesi @amatesi]

@NatureUnedited This clip defines the meaning of the word cocky 🐓

[Andrea Matesi @amatesi]

@geerlingguy With dhcpv6 spoofing being a thing can't disagree with your sentiment

[Andrea Matesi @amatesi]

@DrClownPhD no brainer do it

[Andrea Matesi @amatesi]

@XFreeze lol sounds like Google would rather spend that amount than see a new competitor eat their lunch

[Massimo @Rainmaker1973]

This is the Mega Marvin, an instrument that gets used to make sounds in horror movies.

[📹 MetalWOlf]

[Andrea Matesi @amatesi]

@MarkoMatvikov 🤦

[Andrea Matesi @amatesi]

@0xIchigo Good start

[Andrea Matesi @amatesi]

@WindowsLatest The sooner the better

[Windows Latest @WindowsLatest]

Microsoft is finally trying to kill Windows 11’s web app slop by encouraging developers to build native apps using WinUI 🥳

At Build 2026, Microsoft pushed developers to build native Windows apps using WinUI, and this matters more than it sounds.

For years, Windows has felt slower and messier because too many experiences leaned on web wrappers, React Native, Electron, or WebView2-style layers. Even parts of the Windows 11 Start menu used React Native, including the Recommended section.

Now Microsoft says WinUI is the production platform for Windows apps, and it has “no intention” of building another UI framework. It’s even dropping the WinUI 3 branding and calling it just WinUI to make the commitment clearer.

The technical work is also real: lower memory usage, fewer bugs, system compositor work, DataGrid, Charting, better WPF/WinForms interop, and AI-assisted migration tools.

This is exactly what Windows needs... not more web wrappers pretending to be native apps.

A faster, consistent, native Windows platform again!

[Andrea Matesi @amatesi]

@solana

[Bastien Perez @bastienperez_]

📣 Good news for Microsoft 365 admins: deleting an Entra device is no longer necessarily permanent.

Microsoft has introduced soft delete for device objects in Entra ID, currently in preview.

In practice, instead of being deleted immediately, a device is moved to a soft-deleted state and remains recoverable for 30 days.

🔺 You no longer lose the device’s BitLocker recovery keys or LAPS passwords. These are retained and become accessible again after restoration.

🔺 Applies to: Entra joined and Entra registered devices.

🔺 Does not apply to: Hybrid joined devices, devices created through Graph, or certain specific device types such as non-persistent VDIs and printers, which are still hard-deleted immediately.

🔺 During the 30-day retention period: the device can no longer authenticate, is hidden from the portal, Intune, and Graph (returns 404), and its DeviceId remains reserved.

🔺 Required roles: Cloud Device Administrator, Intune Administrator, or Global Administrator.

🔺 IsCompliant is reset to False until the next Intune check-in, which is expected behavior.

🔺 Restoration is performed through Graph API or PowerShell using the `deletedItems` endpoint. There is no direct link in the UI yet... although the page already exists https://t.co/rQ9kPQXkcb

🔺 Important consideration: Hybrid joined devices are not covered by soft delete. Deletion remains an immediate hard delete.
The documentation only mentions that Entra Connect may restore an object removed from the synchronization scope instead of creating a duplicate, but there is currently no further clarification... definitely something worth testing in a lab 😀

🔗 Official doc : https://t.co/lcmlhl4KVI

[Andrea Matesi @amatesi]

@mert Digital - short, simple, obviously a bank (if it sticks around, that is😅)

[Andrea Matesi @amatesi]

@CryptoCurb Yes - inflation reduction is primarily a user's concern that needs to be addressed

[SystemCenterDudes @scdudes]

It's now June when Secure Boot certificates will expire. Time is ticking, so get ahead of it with this guide from #SCDudes:👇
https://t.co/n2AALsVcSV

#MSIntune #Security #Windows #ConfigMgr #SecureBoot

[Andrea Matesi @amatesi]

@mert lol