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News
I made two AIs review each other's code for 30 days. A human still caught the bug in 5 minutes.
18+ min ago (905+ words) Last month I let AI write 100% of my code for 30 days. The single loudest lesson wasn't "AI is amazing" or "AI is useless." It was one sentence: the thing that writes the code can never be the thing that reviews…...
AI Website Handoffs: When a Prototype Needs a Real Code Boundary
15+ min ago (332+ words) A polished AI-generated website can hide an unfinished delivery model. The hard question is not whether a builder can produce a convincing page. It is whether the next person can safely change the real system without reconstructing the original prompt,…...
Learning from first principles
16+ min ago (431+ words) Enterprises and large coorporations manage tens of millions of requests daily. what this implies is that the need for deep understanding of systems and engineering foundations in becoming increasingly important. people like to say things like Coding is Solved or…...
The Illusion of String.length: How to safely count Unicode, Emojis, and Words in JS
26+ min ago (173+ words) If you are building a text input that restricts users to a specific character limit (like a tweet, an SMS gateway, or an SEO meta tag), your first instinct is probably to use String.prototype.length. If you are doing…...
The more aggressive matmul kernel lost to the register budget
21+ min ago (171+ words) The WebGPU matmul sweep started with a naive kernel, then added 16 by 16 workgroup tiling and a 4 by 4 output block per thread. At a 2048 cubed matrix size, the measured time moved from 47.24 ms for the naive kernel to 17.23 ms for tiling…...
Make Fully Customizable QR Codes (Actually)
22+ min ago (28+ words) Tired of usual bland QR codes that don't show off your brand? I made a simple API to create fully... Tagged with python, api, backend, tools....
AI Is Already Better at Coding Than Most Developers. So Why Would a Company Still Hire You?
26+ min ago (1385+ words) AI can write a React component in seconds. It can create an API, design a database schema, write tests, explain an unfamiliar codebase, debug an error, refactor a function, and generate documentation before you've finished your coffee. And it's getting…...
Distributed Locks
52+ min ago (110+ words) One-liner: A distributed lock ensures that only one node in a cluster can perform a critical operation at a time — preventing race conditions across services. In a single-server world, a mutex or semaphore handles concurrency. But in distributed systems: Classic…...
Three things that bit us moving a document scanner fully into the browser
56+ min ago (596+ words) I work on LensUp, which does exactly that — the whole pipeline runs in the tab, and files are never uploaded. Disclosure up front: it's our tool, and this post is about the parts that were harder than the pipeline itself....
Ecualizador de Audio online
52+ min ago (20+ words) Hola buen día me gustaría compartir este pequeño proyecto con todos la verdad es que no soy... Tagged with webdev....