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The Scenario An EC2 instance with an attached IAM role has s3:GetObject on a bucket containing sensitive data. An attacker compromises the instance, extracts temporary credentials from the metadata service, and begins bulk-downloading objects. GuardDuty fires Exfiltration:S3/AnomalousBehavior . The development team needs 4 hours to patch. You need to cut off access now. This post walks through exactly how to do that — commands, policies, validation steps, and the reasoning behind each ...

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Article URL: https://rwwgreene.substack.com/p/i-set-a-trap-for-a-book-marketing Comments URL: https://news.ycombinator.com/item?id=49402181 Points: 37 # Comments: 27

Article URL: https://marcua.net/minitools/figmimic/ Comments URL: https://news.ycombinator.com/item?id=49402213 Points: 89 # Comments: 12

Article URL: https://nappertime.com/the-art-of-and-beauty-of-blade-runner/ Comments URL: https://news.ycombinator.com/item?id=49405331 Points: 65 # Comments: 15

Article URL: https://henry.codes/writing/i-dream-of-quieter-computing/ Comments URL: https://news.ycombinator.com/item?id=49405682 Points: 55 # Comments: 23

Article URL: https://martypc.net/ Comments URL: https://news.ycombinator.com/item?id=49405816 Points: 93 # Comments: 23

Article URL: https://nappertime.com/the-golden-rule-of-becoming-a-better-writer/ Comments URL: https://news.ycombinator.com/item?id=49405870 Points: 88 # Comments: 49

Article URL: https://www.nytimes.com/2026/08/23/world/europe/poland-estonia-cryptocurrency.html Comments URL: https://news.ycombinator.com/item?id=49406069 Points: 30 # Comments: 10

Article URL: http://www.os2museum.com/wp/the-end-of-an-athlon/ Comments URL: https://news.ycombinator.com/item?id=49406333 Points: 47 # Comments: 7

Article URL: https://malisper.me/jit-compiling-code-in-5-us/ Comments URL: https://news.ycombinator.com/item?id=49406387 Points: 33 # Comments: 2

Article URL: https://www.xda-developers.com/wi-fi-8-first-wireless-upgrade-years-isnt-chasing-speed-home-networks-need-it/ Comments URL: https://news.ycombinator.com/item?id=49406539 Points: 49 # Comments: 31

Flipkart's quick-commerce venture is delivering 1.1 million to 1.2 million orders a day, nearly triple its November volume.

As a developer who's been building .NET WPF applications for years, I've wrestled with the same problem everyone faces: how do you protect your intellectual property without breaking your UI? I recently finished a major WPF project targeting .NET 10, and the obfuscation journey taught me a lot. I wanted to share my experience with Opaquer - the tool that finally solved my WPF obfuscation nightmares. The WPF Obfuscation Nightmare If you've ever tried to obfuscate a WPF app ...

Disclosure: This post includes affiliate links; I may receive compensation if you purchase products or services from the different links provided in this article. Credit - ByteByteGo Hello Devs, if you're preparing for a System Design interview in 2026 , there is a good chance you've come across ByteByteGo and its founder, Alex Xu, author of another popular System Design interview resource and book, the System Design Interview - An Insider's Guide . But with so many sy...

Working through a practical reference to moving a change through Git took me through the process of taking a single change from my local computer, committing it in Git, and pushing it to GitHub where others would be able to see it. This was written for complete Git Novices and so I approached it without any prior experience of using Git. By the end, you will be able to move a change through all four Git stages and confirm it's visible on GitHub with a clear commit history. Who Thi...

The Performance Wall: Why React Isn't a Data Buffer If you’ve ever built a real-time application—a trading dashboard, a crypto ticker, or a live sensor monitor—you’ve likely hit the "React Performance Wall." You pipe your WebSocket messages directly into useState , and suddenly, your browser becomes a stuttering, unresponsive mess. The culprit is simple but often misunderstood: React is a UI library, not a data buffer. When you treat React state as the ultimate source of truth for e...

Last week a tweet went viral claiming that people complaining about LLM-generated bloat would "eat crow" once everything gets rewritten in hand-optimized assembly. Dan Luu, the engineer behind some of the most cited performance writing on the internet, responded with an essay titled "There's no reason for software to be slow anymore." It hit 620 points on Hacker News in about a day, and its argument should change how every Java team spends its next sprint. The core claim is simple and backed ...

skillcheck is a static analyzer for SKILL.md files, the format agents like Claude Code, Copilot, Codex, and Cursor use to load reusable skills. It validates frontmatter, scores description discoverability, checks file references, enforces token budgets, and flags cross-agent compatibility issues. No network calls, no LLM calls, no file mutations. Runs as a CLI, a GitHub Action, or a pre-commit hook. pip install skillcheck skillcheck skills/ Latest pass was hardening and accu...

A generic image model is rewarded for producing a convincing picture. A virtual-staging system has a stricter job: produce a convincing picture without changing the property being represented . That distinction sounds small until you build a workflow around real listing photos. A beautiful render can still be unusable if a window moves, a doorway narrows, the floor line bends, or the apparent depth of the room changes. The model has improved the image while damaging the information. This ...

Control Plane (Master) & Worker Nodes Control Plane components: API Server Scheduler Control Manager etcd Worker Node components: Container Runtime Kubelet Kube-proxy Node Processes Each node has multiple Pods on it. 3 processes must be installed on every node — used to schedule and manage those Pods. Nodes are cluster services that actually do the work. Container Runtime Examples: Docker, containerd, CRI-O. containerd is used in ...

Bluesky starter packs look like a single thing in the app — a shareable page that lets a new user follow a curated group in one tap. At the protocol level they are three separate records glued together by references, and if you create them from code (we do, as part of an automated outreach pipeline), the decomposition matters: it decides what you can update later, what you can only create once, and where a naive script will quietly make a mess. The three records Everything below ...

I spent two months building Vestibule, an open-source Python framework for the boring layer of RAG ingestion — stable document IDs, a state ledger, error classification, per-vertical governance. The parts every team struggles with once the demo works and production doesn't. Most of the code wasn't typed by me. Four AI agents did the work — one wrote designs, one reviewed them, one implemented, one reviewed the code — all through real GitHub pull requests, with me signing off at every gate. Th...

I'm use neovim in cli like in my home but im not use Ide before in my live my first try pc is arch linux and neovim So I think I'm the best person to ask what is special in neovim 1: is so lightweight use ram is just 50-20 mb ram 2: you can config anything in lua language 3: open into terminal ssh protocol edit in code into server 4: vim keybinding like Vim / Neovim Keybindings Cheat Sheet Navigation (Normal Mode) h / j / k / l : Move Left /...

How I built an FVG trading bot for OKX and made 99% of its signals useless on purpose If you trade crypto futures, you know the drill. You're staring at the chart at 3am because you're scared to blink and miss "the perfect entry". Or worse, you get in emotionally, chase a pump, and hand back all your profit in one bad night. I got liquidated once because my stop was at -5% and the liquidation price was at -2%. Price gapped straight through my stop. That's how this project started. I bu...

8/22/2026: Top 5 stories on the HackerNoon homepage!