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The Quest Begins (The "Why") Honestly, I still remember the first time I tried to ship a production‑ready Express API. It felt like I was Luke Skywalker staring at the Death Star plans—excited, a little terrified, and completely sure I’d missed a crucial piece of the puzzle. My endpoint worked fine on localhost:3000 , but as soon as I spun up a second instance behind a load balancer, things started to glitch: sessions vanished, cache hits turned into misses, and my logs looked like a scene ...

You run git diff dozens of times a day. You read the red and green lines, you stage the hunks, you move on. But there's a small algorithmic miracle happening every time: out of the astronomically many ways to describe "how file A became file B," the tool quietly finds one of the shortest ones. That's not a formatting trick. It's a shortest-path search. Once you see it, code review, merge conflicts, and "why did git think I moved this whole block?" all start to make sense. A di...

Building a Multi-Vendor Marketplace From Scratch: Lessons From 30,000 Lines of React By Faiz Ullah — Full-Stack Developer & Founder of DG Technology Most "build an e-commerce site" tutorials stop at a product list and a cart. They don't deal with the actual hard part: three different types of humans — customers, sellers, and admins — all needing their own secure space inside the same app, talking to each other in real time, without ever stepping on each other's data. That's ...

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Article URL: https://www.jacc.org/doi/10.1016/j.jaccas.2025.104885 Comments URL: https://news.ycombinator.com/item?id=48594592 Points: 122 # Comments: 80

Article URL: https://letsencrypt.status.io/#2026 Comments URL: https://news.ycombinator.com/item?id=48594715 Points: 132 # Comments: 80

Article URL: https://www.darpa.mil/research/challenges/lift Comments URL: https://news.ycombinator.com/item?id=48594933 Points: 17 # Comments: 12

Article URL: https://www.whatwelo.st/p/generative-ai-is-having-its-herbalife Comments URL: https://news.ycombinator.com/item?id=48595144 Points: 26 # Comments: 22

Article URL: https://www.chipstrat.com/p/the-isa-doesnt-matter-where-it-counts Comments URL: https://news.ycombinator.com/item?id=48595316 Points: 6 # Comments: 3

Article URL: https://mnot.net/blog/2026/well_known_uris Comments URL: https://news.ycombinator.com/item?id=48595331 Points: 31 # Comments: 11

Article URL: https://www.jvm-weekly.com/p/project-valhalla-explained-how-a Comments URL: https://news.ycombinator.com/item?id=48595511 Points: 24 # Comments: 4

DeductiveAI, a startup that uses AI to catch and resolve bugs in software, was founded just three years ago.

Telegram argues India should block specific content, not an entire platform used by millions.

TypeScript Explained: Why Every JavaScript Developer Should Care You've been writing JavaScript for years. It works. So why bother with TypeScript? That's what I thought too — until I spent two days debugging a production bug that turned out to be a simple typo in a property name. A bug TypeScript would have caught in milliseconds. In this post, I'll explain what TypeScript is, why it exists, and how to write your very first TypeScript program. No fluff — just what you actually need ...

Là một developer thường xuyên đối mặt với các lỗi memory leak trong hệ thống C++/Rust, việc chọn môi trường profiling là yếu tố sống còn. Nếu bạn đang cân nhắc giữa việc chạy Valgrind hay Heaptrack trên WSL2 so với Native Linux (hoặc máy trạm có RAM SO-DIMM nâng cấp được), đây là những trải nghiệm thực tế từ quá trình debugging. Hiệu năng Valgrind và Heaptrack: Sự khác biệt rõ rệt Khi sử dụng valgrind --tool=memcheck , tốc độ thực thi thường giảm xuống còn 10-50 lần so với b...

如果你能用 10 行 YAML 构建一个生产级的 AI Agent 工作流——并且自带重试、可观测性和多模型路由——你会怎么做？ Dify 是一个开源的 LLM 应用开发平台，拥有 145,764 个 GitHub Stars、22,915 个 Fork、460 多位贡献者。它刚刚发布了 v1.14.2（2026 年 5 月），包含安全加固、Agent 基础架构和工作流可靠性改进。但大多数团队只把它当作无代码聊天机器人构建器——完全忽略了底层的基础设施能力。 2026 年，AI 工作流已经从"写个 prompt 然后祈祷"进化到了具备记忆、工具调用和可观测性的多步骤编排管道。Dify 正处于这个转变的中心，将可视化工作流设计、RAG 管道、Agent 能力和 LLMOps 整合在一个可以部署在你自己基础设施上的平台中。 以下是大多数人从未发现的 Dify 的 5 个隐藏用法。 隐藏用法 #1：可视化工作流即代码——导出、版本控制与回放 大多数人的做法： 在 Dify 网页 UI 中构建工作流，点击"运行"，然后祈祷一切正常。出...

What if you could build a production-ready AI agent workflow in 10 lines of YAML — and have it handle retries, observability, and multi-model routing out of the box? Dify is an open-source LLM app development platform with 145,764 GitHub stars, 22,915 forks, and 460+ contributors. It just shipped v1.14.2 (May 2026) with security hardening, agent groundwork, and workflow reliability improvements. Yet most teams only use it as a no-code chatbot builder — completely missing the infrastructure un...

TypeScript Types Demystified: Simple Types, Special Types, and Type Inference In the first post , we covered why TypeScript exists and how to write your first program. Now it's time to get comfortable with the type system itself — the foundation everything else is built on. By the end of this post, you'll know how to type variables, arrays, and function parameters correctly. You'll also understand the "special" types that trip up most beginners: any , unknown , never , and void . ...

A honeypot is the cleanest way to drain a trading bot on Solana: the token lets you buy , but there is no way to sell . Your agent spends real USDC, receives tokens, and then discovers the exit is welded shut. The position is worth zero and there is nothing to do about it. Honeypots don't show up on a price chart — the chart looks great, because everyone can buy and nobody can sell. You only find out at exit. So the check has to happen before the buy. What makes a Solana token...

Structuring TypeScript: Interfaces, Type Aliases, Enums, and Object Types You've learned TypeScript's primitive types and the basics of type inference here . Now it's time to model real-world data — users, orders, API responses, configuration objects. That's where interfaces, type aliases, and enums come in. These three features are what make TypeScript genuinely powerful for building applications. Let's dig in. Object Types: Describing the Shape of Data Before we ge...

I just shipped Pro tier for Eidetic Works . Here's what's in it, who I built it for, and why I'm shipping three tiers ($29 / $99 / $299) instead of a single plan. What problem does this actually solve? You're running Claude Code. You have two or three sessions open across different parts of the codebase. Session 2 doesn't know what Session 1 decided. You end up re-explaining the same architecture decisions to the same model you already talked to yesterday. This is the cont...

Building a prototype of an AI agent is fun. Building a production-ready agent is a nightmare. In a perfect world, your agent always gets the perfect context, the API never fails, and the model never gets "lazy." But in the real world, transient errors are a constant, and models love to take shortcuts. If you aren't testing your agent against the messy reality of production, you’re setting yourself up for failure. This is where our Agent Profiler comes in. We’ve designed it to be an "advers...

You wire up OCR for your KYC flow, point it at a national ID card, and get back a clean { name, idNumber, dateOfBirth } . Ship it. Then you onboard your second country — and it falls apart. Fields you mapped don't exist. The name comes back as garbled Latin. The date of birth says the year 2567. Here's the thing nobody tells you when you start: the hard part of national ID OCR isn't the OCR. It's that every country's ID is a different document. A model that reads text off a card is table s...

You added .env to .gitignore . You felt responsible. But three weeks later it's still in the repo, still pushed to GitHub, still in every clone — because adding a path to .gitignore does nothing to a file git already tracks. That's not a bug. It's documented behavior: .gitignore only stops untracked files from being added. Anything already committed keeps getting tracked, ignore rule or not. So the secrets, build artifacts, and 40 MB log files that were committed before someone w...

Hi everyone 👋 I'm a Full Stack Developer with experience in JavaScript, React.js, Next.js, Node.js, Express.js, MongoDB, and WordPress development. Over the last few years, I have worked on multiple projects ranging from company websites to full-stack web applications. In this article, I want to share my experience transitioning from the traditional MERN stack to Next.js and why it has become my preferred framework for modern web development. Why I Started with MERN Stack The MERN ...

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How are you, hacker? 🪐 What’s happening in tech today, June 18, 2026? The HackerNoon Newsletter brings the HackerNoon homepage straight to your inbox. On this day, Rolls-Royce Was Trademark Registered in 1935, F-117 Nighthawk Made Its First Stealth Flight in 1981, Kazakhstan Launched Its First Satellite in 2006, NASA Launched the Lunar Reconnaissance Orbi...

It was a perfectly ordinary Tuesday in March 2023 when Samsung's semiconductor engineers started using ChatGPT to help debug code. Makes sense: it's a useful tool. The company had just lifted its ban on the chatbot. Who wouldn't want a shortcut when you're staring at a broken database? Within 20 days, security breaches had happened three times . One engineer pasted proprietary source code into ChatGPT to find a bug fix. Another uploaded confidential device code for optimizatio...

Lodz, Poland, June 18th, 2026, Chainwire/ BTCC , the world's longest-serving cryptocurrency trading platform, today announced a series of zero-fee campaigns spanning deposits, spot trading, and TradFi futures. The launch represents a deliberate strategic effort to lower the barriers to entry that have historically kept retail traders on the sidelines, and to ensure that cost is never the reason a trader hesitates to participate. The Zero-Barrier initiative targets both first-time users and s...