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Writing a C compiler in 500 lines of Python

Writing a C compiler in 500 lines of Python Posted August 30, 2023 A few months ago, I set myself the challenge of writing a C compiler in 500 lines of Python , after writing my SDF donut post. How hard could it be? The answer was, pretty hard, even when dropping quite a few features. But it was also pretty interesting, and the result is surprisingly functional and not too hard to understand! There's too much code for me to comprehensively cover in a single blog post , so I'll just give an ove

Topics: code emit i32 lexer type

VibeVoice: A Frontier Open-Source Text-to-Speech Model

VibeVoice: A Frontier Open-Source Text-to-Speech Model VibeVoice is a novel framework designed for generating expressive, long-form, multi-speaker conversational audio, such as podcasts, from text. It addresses significant challenges in traditional Text-to-Speech (TTS) systems, particularly in scalability, speaker consistency, and natural turn-taking. A core innovation of VibeVoice is its use of continuous speech tokenizers (Acoustic and Semantic) operating at an ultra-low frame rate of 7.5 Hz.

Mophie Made the Ultimate Charging Stand for All Your AirPods

IFA 2025 is chock full of RGB-bleeding gaming laptops, cassette tape Bluetooth boomboxes, Nvidia AI computing (gotta have that), and, of course, this Max Headphones Charging Stand from reputable accessory maker Mophie. Unlike the thousands of other charging stands available to buy from every brand under the sun, this one actually does something different that I’ve not seen before: it charges both a pair of AirPods Max and a pair of AirPods or AirPods Pro. Mophie says it’s the “first dedicated c

Mophie adds wireless charging to the AirPods Max with a clever new stand

is a senior reporter who’s been covering and reviewing the latest gadgets and tech since 2006, but has loved all things electronic since he was a kid. Posts from this author will be added to your daily email digest and your homepage feed. Mophie has announced a new wireless charger for Apple’s AirPods Max called the Max Headphones Charging Stand. The AirPods Max don’t support wireless charging, so Mophie’s new stand relies on a small dongle that stays connected to the headphones’ USB-C port at

Understanding Transformers Using a Minimal Example

The internal mechanisms of Transformer Large Language models (LLMs), particularly the flow of information through the layers and the operation of the attention mechanism, can be challenging to follow due to the vast amount of numbers involved. We humans can hardly form a mental model. This article aims to make these workings tangible by providing visualizations of a Transformer's internal state. Utilizing a minimal dataset and a deliberately simplified model, it is possible to follow the model's

‘Alien: Earth’ Finally Gave Us the Episode We Were Waiting For

When I saw the title for the fifth episode of Alien: Earth, it seemed too good to be true. Could the episode actually live up to the implications of its title? Were we about to get a brand-new, full-fledged Alien movie in the comfort of our home? Thankfully, the answer to both those questions is “Yes.” The fifth episode of Alien: Earth saw creator Noah Hawley deliver his own version of an Alien movie in the confines of his show, and it was familiar, fascinating, and fraught with tension. Let’s d

How to watch Apple announce the iPhone 17

Apple is hosting its “Awe dropping” hardware event on Tuesday at 10 a.m. PT. The company is expected to announce its iPhone 17 lineup, which could include a slimmer version, as well as updates for the Apple Watch and AirPods. The keynote will take place at Apple Park in Cupertino. Viewers can tune in to the livestream here or watch it on Apple’s website. As usual, TechCrunch will be covering the event, so stay tuned for news. There have been numerous rumors surrounding the upcoming iPhone line

AirPods Pro 3 are coming, here’s every rumored new feature

AirPods Pro 3 are almost here, with a launch at Apple’s September 9 event widely expected. Here’s every rumored new feature coming to AirPods Pro 3. Next-generation H3 chip AirPods Pro 3 will include a brand new H3 chip from Apple. The H2 chip in AirPods Pro 2 has enabled Apple to regularly ship new AirPods features via firmware updates. It’s expected that H3 will similarly bring ongoing improvements for years to come—plus some new audio capabilities at launch. H2 is the reason AirPods Max

Samsung announces a pair of flashy new party speakers

It’s shaping up to be a good week for people who like enormous party speakers. Hot on the heels of JBL’s PartyBox 720 comes Samsung’s latest Sound Tower. The two new models are the ST50F and the ST40F, both of which are designed to provide music for large gatherings, indoors or outdoors. A redesigned acoustic structure houses dual dome tweeters equipped with Samsung’s Waveguide tech, which it says delivers a wider and more even soundstage. These are joined by a pair of woofers, the output of wh

Claude Code: Now in Beta in Zed

You asked for it. A lot. So we built it: our Claude Code integration is now available in public beta, running natively in Zed through our new Agent Client Protocol (ACP). For months, developers have been asking us to bring Claude Code into Zed. We didn’t just want to bolt on a one-off integration; we wanted to build something better. ACP is our new open standard that lets any agent connect to Zed (and other editors, too). Claude Code is a perfect example of what’s possible. Now you can: Run

Topics: acp agent claude code zed

Warp brings new diff-tracking tools to the AI coding arms race

The AI coding tool Warp has a plan for making coding agents more comprehensible — and it looks an awful lot like pair programming. Today, the company is releasing Warp Code, a new set of features designed to give users more oversight over command-line-based coding agents, with more extensive difference tracking and a clearer view of what the coding agent is doing. “I feel like with these other command-line tools, you’re kind of just crossing your fingers and hoping that what comes out the othe

For all that's holy, can you just leverage the Web, please?

When I moved in with my wife Laura in 2005, we lived in a shared apartment in Barcelona that had an ancient washing machine that was just there already, no idea who initially bought it. I managed to break the washing machine door's closing mechanism some time in 2006, so for a few weeks, whenever we did the washing, we had to lean a chair against the door so it wouldn't open. At the time, we were both students and living on a small budget. Eventually, later in the same year, we bought an Electr

Dynamo AI (YC W22) Is Hiring for AI Product Managers

Product Manager - AI Location: Remote (US-based preferred) Experience: 1+ years in Product Management About Dynamo AI Dynamo AI is building the future of trustworthy AI for the enterprise. Our platform provides real-time guardrails, redteaming, and observability for generative AI systems—ensuring safe, compliant, and reliable AI deployments in regulated industries such as financial services, insurance, DoD, and healthcare. We’re backed by leading partners and rapidly expanding with some of

Turns out it’s possible to get a Pixel 10 with a physical SIM slot in the US

Rita El Khoury / Android Authority TL;DR Google is reportedly sending out global Pixel 10 models with physical SIM slots as replacement units to users. These global models lack support for mmWave 5G. While some people are viewing this as an upgrade, others are concerned about connectivity issues. If you bought a Pixel 10, 10 Pro, or 10 Pro XL in the US, your phone came without a physical SIM slot. That’s the standard for US models of Google’s latest flagships. Instead of having a traditional

Exclusive: Nomad now 20% off sitewide for 9to5 readers – New Apple Watch bands, Find My card, MagSafe stands, more

Labor Day weekend might have already come and gone, but the big-time deals at Nomad are just starting now. We have now secured 9to5 readers a special code that will knock 20% off everything on the site, from its super-popular Find My Tracking Card and brand new Tempo Apple Watch bands through to iPhone/iPad cases, its premium MagSafe charging stations, and everything in between. Just use code 9to520 at checkout to slash 20% off your order. Nomad 20% off sitewide for 9to5 readers We have featur

How to Give a Good Talk

How to Give a Good Talk In computer science, conferences are a focal point of academic attention. Conferences are a moment where computing communities—distributed over the globe—come together. Giving a talk at a conference is an incredible opportunity: for a moment, you have the community’s attention. If you can give a good talk, the community will pay more attention to your work! But what makes a good talk? I spoke at PLMW 2025 on this topic—“How to give a good talk”. You can read an edited t

Finding thousands of exposed Ollama instances using Shodan

The rapid deployment of large language models (LLMs) has introduced significant security vulnerabilities due to misconfigurations and inadequate access controls. This paper presents a systematic approach to identifying publicly exposed LLM servers, focusing on instances running the Ollama framework. Utilizing Shodan, a search engine for internet-connected devices, we developed a Python-based tool to detect unsecured LLM endpoints. Our study uncovered over 1,100 exposed Ollama servers, with appro

Microsoft VibeVoice: A Frontier Open-Source Text-to-Speech Model

VibeVoice: A Frontier Open-Source Text-to-Speech Model VibeVoice is a novel framework designed for generating expressive, long-form, multi-speaker conversational audio, such as podcasts, from text. It addresses significant challenges in traditional Text-to-Speech (TTS) systems, particularly in scalability, speaker consistency, and natural turn-taking. A core innovation of VibeVoice is its use of continuous speech tokenizers (Acoustic and Semantic) operating at an ultra-low frame rate of 7.5 Hz.

IFA 2025: the biggest tech and gadget announcements

IFA, the European tech trade show equivalent to CES in the US, is just around the corner. Companies are gearing up to showcase their latest innovations, bringing us the latest product announcements, feature demonstrations, and design concepts that will shape future consumer tech releases. IFA will open its doors between September 5th and 9th, but many of the biggest announcements will start dropping shortly before the show’s public opening. And, as always, The Verge will be covering all the lat

10-20x Faster LLVM -O0 Back-End – Code Generation

5 years ago, @nikic wrote: I can’t say a 10% improvement is making LLVM fast again, we would need a 10x improvement for it to deserve that label. We recently open-sourced TPDE and our fast LLVM baseline back-end (TPDE-LLVM), which is 10-20x faster than the LLVM -O0 back-end with similar runtime performance and 10-30% larger code size. We support a typical subset of LLVM-IR and only target x86-64 and AArch64. Posting this here, as this might be interesting for the LLVM community – questions/com

Topics: 10 code ir llvm size

Indices, not Pointers

Indices, not Pointers There is a pattern I’ve learned while using Zig which I’ve never seen used in any other language. It’s an extremely simple trick which - when applied to a data structure - reduces memory usage, reduces memory allocations, speeds up accesses, makes freeing instantaneous, and generally makes everything much, much faster. The trick is to use indices, not pointers. This is something I learned from a talk by Andrew Kelley (Zig’s creator) on data-oriented design. It’s used in Z

Medicare Will Start Paying AI Companies a Share of Any Claims They Automatically Reject

It's long been the practice of private health insurers to require "prior authorization" before you can get the treatment you need. Often, they'll try to deny as many of these claims as possible — including with the use of AI models. Government-backed plans like Medicare, however, have tended to cover what private insurers don't, and without the laborious application process. But that could be poised to change. The Centers for Medicare and Medicaid Services said it'll experiment with its own ve

Parallel AI agents are a game changer

I’ve been in this industry long enough to watch technologies come and go. I’ve seen the excitement around new frameworks, the promises of revolutionary tools, and the breathless predictions about what would “change everything.” Most of the time, these technologies turned out to be incremental improvements wrapped in marketing hyperbole. But parallel agents? This is different. This is the first time I can say, without any exaggeration, that I’m witnessing technology that will fundamentally trans

Today's NYT Connections: Sports Edition Hints and Answers for Sept. 3, #345

Looking for the most recent regular Connections answers? Click here for today's Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle and Strands puzzles. Fans of the Fighting Irish, today's Connections: Sports Edition is calling your names. If you're struggling but still want to solve it, read on for hints and the answers. Connections: Sports Edition is out of beta now, making its debut on Super Bowl Sunday, Feb. 9. That's a sign that the game

9to5Mac Daily: September 2, 2025 – New AirPods Pro health features?

Listen to a recap of the top stories of the day from 9to5Mac. 9to5Mac Daily is available on iTunes and Apple’s Podcasts app, Stitcher, TuneIn, Google Play, or through our dedicated RSS feed for Overcast and other podcast players. Sponsored by Backblaze: Never lose a file again. Use code “9to5daily” at checkout for 10% off or try for free. New episodes of 9to5Mac Daily are recorded every weekday. Subscribe to our podcast in Apple Podcast or your favorite podcast player to guarantee new episodes

Pearl – An Erlang lexer and syntax highlighter in Gleam

Pearl An Erlang lexer and syntax highlighter for Gleam! Pearl is a lexer and syntax highlighter for Erlang, written in Gleam. The lexer is based on glexer and just , allowing you to convert Erlang source code into tokens. There is also an API which allows you to highlight Erlang code using ansi colours, html or a custom format. Heavily inspired by contour . gleam add pearl@2 import pearl pub fn main ( ) { let code = " -module(hello). -export([hello_world/0]). hello_world() -> io:fwrite( \" H

A staff engineer's journey with Claude Code

Until 18 months ago, I wrote every line of code myself. Today, AI writes 80% of my initial implementations while I focus on architecture, review, and steering multiple development threads simultaneously. This isn't another "AI will change everything" post. This is about the messy reality of integrating AI into production development workflows: what actually works, what wastes your time, and why treating AI like a "junior developer who doesn't learn" became my mental model for success. The back

Amazon’s Lens Live AI shops for anything you can see

is a news writer who covers the streaming wars, consumer tech, crypto, social media, and much more. Previously, she was a writer and editor at MUO. Posts from this author will be added to your daily email digest and your homepage feed. Amazon will now let you shop for products by pointing your camera at them. On Thursday, the company announced Lens Live, a new feature that uses your camera to scan things in the environment around you, while surfacing matching product listings. This feature, w

First attempt will be 95% garbage: 6 weeks with Claude Code

Until 18 months ago, I wrote every line of code myself. Today, AI writes 80% of my initial implementations while I focus on architecture, review, and steering multiple development threads simultaneously. This isn't another "AI will change everything" post. This is about the messy reality of integrating AI into production development workflows: what actually works, what wastes your time, and why treating AI like a "junior developer who doesn't learn" became my mental model for success. The back

Today's NYT Strands Hints, Answers and Help for Sept. 3 #549

Looking for the most recent Strands answer? Click here for our daily Strands hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections and Connections: Sports Edition puzzles. Today's NYT Strands puzzle is a crazy tough one. I understand the theme, and I even cook and bake, but there's a term among the answers that I had to look up. (Here it is if you want a spoiler.) If you need hints and answers, read on. I go into depth about the rules for Stra