The signal in the feed.

Your Kids' School Bus Is About to Become a Roaming Surveillance Vehicle

I Built a Zero-Dependency React Rich Text Editor — Here's How to Use It

Build a Lightweight Rich Text Editor for React (Zero-Dependency Core) Every React application eventually needs a rich text editor. Whether you're building a blog platform, CMS, admin dashboard, knowledge base, or comment system, there comes a point where a simple isn't enough—but a full document editor is overkill. Popular libraries like Draft.js, Quill, Slate, and TipTap are excellent, but they often come with trade-offs: 📦 Larger bundle sizes 🔌 Multiple dependencies ⚙️ More setup than a simp

Backpropagation Is Just Dynamic Programming (I Animated It to Prove It)

Everyone learns backpropagation as "apply the chain rule." Almost nobody explains why it's fast — and that "why" is the whole reason deep learning is computationally possible at all. So I animated one full training step to show the part most explanations skip. What you're actually seeing Forward pass: a single signal travels through 3 weights → a prediction → compared to the target = the loss. Backward pass: the error (δ) flows back through the network. δ₃ is computed at the output, then reused

Medieval-style fortifications are back in the Sahel

Meta, like SpaceX, looks to turn excess AI compute into cash

Meta is developing plans for a cloud infrastructure business, selling access to AI compute power and models. The move would pit it against the big cloud providers like Amazon Web Services, Google Cloud, and Microsoft Azure.

Download Rune Dice NSP Full Game Latest 2026

Download Rune Dice NSP Full Game Latest 2026 Rune Dice NSP is a fantasy-themed strategy game that combines dice-based mechanics with roguelike progression and tactical decision-making. Players embark on an ever-changing adventure where every dice roll influences battles, rewards, and the path ahead. By collecting powerful runes, upgrading abilities, and adapting to randomized encounters, you'll build unique strategies to overcome increasingly difficult enemies and unpredictable challenges. The g

Why I Stopped Arguing with People

Article URL: https://wangcong.org/2026-06-30-why-i-stopped-arguing-with-people.html Comments URL: https://news.ycombinator.com/item?id=48746445 Points: 420 # Comments: 331

UK likely to intervene in Paramount takeover of Warner Bros Discovery

The acquisition was approved without concessions by the Department of Justice in June.

The Vespa at 80: Why the Italian scooter remains the coolest thing on 2 wheels

Global State in Next.js App Router — Zustand Over Context for Most Use Cases

React Context works. It's built-in, requires no dependencies, and handles many state management needs fine. It also causes the specific problem that leads developers to look for alternatives: unnecessary re-renders when the context value changes. For small amounts of global state — a theme preference, a user session — Context is fine. For anything with more frequent updates or more complex structure, Zustand is meaningfully better and the migration is straightforward. Here's the practical compar

WebSocket Wizardry: Building Real-Time Apps Like a Jedi

The Quest Begins (The "Why") Honestly, I was stuck in a loop of endless AJAX polling. Every few seconds my frontend would hammer the server with a GET request just to see if a new chat message had arrived. It felt like I was playing Whac‑A‑Mole with my own bandwidth—constantly chasing updates that rarely existed. Users complained about lag, my CPU spiked, and the whole thing smelled like a hackathon project that never quite shipped. One night, after yet another 3 a.m. debug session where I watch

Designing DB partitions you don't have to babysit