Welcoming Elizabeth Barron as the New Executive Director of the PHP Foundation
We’re excited to welcome Elizabeth Barron as the next Executive Director of The PHP Foundation, following a thorough process led by our search committee of Nils Adermann, Sebastian Bergmann, Lorna Mitchell, and Ben Ramsey. Elizabeth brings a rare combination of deep roots in the PHP community and proven leadership in open-source governance. She co-founded a […]
The Cathode Ray Tube site
The Cathode Ray Tube site 150 years of CRT evolutionThe Dutch collection NEVA Finebeam tube Close-up of the gun. The fadenstrahlrohre or Finebeam tube is used in conjunction with two Helmholtz coils to investigate the deflection of electron beams in electrical and magnetic fields, particularly the determination of the specific electron charge e/m, the Electron Charge […]
Microgpt explained interactively
Andrej Karpathy wrote a 200-line Python script that trains and runs a GPT from scratch, with no libraries, no dependencies, just raw Python. The script contains the complete algorithm that powers LLMs like ChatGPT. Everything else is just efficiency. Let’s walk through it piece by piece and watch each part work. Andrej did a walkthrough […]
Why is the first C++ (m)allocation always 72 KB?
2026-02-28 TLDR; The C++ standard library sets up exception handling infrastructure early on, allocating memory for an “emergency pool” to be able to allocate memory for exceptions in case malloc ever runs out of memory. I like to spend (some of) my time hacking and experimenting on custom memory allocators with my own malloc implementation(s). […]
Show HN: Terminal-Style Portfolio on the Internet
19-year-old AI developer, Perplexity Business Fellow, winner of Nothing Essential Lab S1 Hackathon (awarded a Nothing Phone 3), featured by The Independent for ClawX, 4th place at Unsloth x AMD RL Hackathon at IIT Delhi, with 20+ hackathons under his belt. From New Delhi, India. Participant in OpenAI Asia-Pacific Developer Discussion. Creator of innovative AI […]
On the Design of Programming Languages (1974) [pdf]
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Decision trees – the unreasonable power of nested decision rules
Decision Trees We just saw how a Decision Tree operates at a high-level: from the top down, it creates a series of sequential rules that split the data into well-separated regions for classification. But given the large number of potential options, how exactly does the algorithm determine where to partition the data? Before we learn […]
What Are Your Guilty Displeasures?
Mosaic of the Muses, including Homer discussing with the Muse of epic poetry; found in Luxembourg (c. 240) A guilty pleasure is something you genuinely like, but that clashes with your self image. For example, you might really be a fan of Paris Hilton, but feel that you’re the kind of person who should not […]
Switch to Claude Without Starting Over
10-202: Introduction to Modern AI (CMU)
10-202: Introduction to Modern AI Logistics Course Instructor: Zico Kolter Lectures: MW[F] 9:30–10:50 Tepper 1403 (note: Friday lectures will only be used for review sessions or makeup lectures when needed) Online Course A minimal free version of this course will be offered online, simultaneous to the CMU offering, starting on 1/26 (with a two-week delay […]