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DEV Community • 2026-07-26 19:54

How to Preview a Website on a New Server Before You Change DNS

Every website migration has the same terrifying moment: you flip the DNS record, and for the next few hours you have no idea whether the new server is actually serving your site correctly — or quietly 500-ing for half the planet while it propagates. The fix is simple: test the new server before you change DNS. Here's how to do that properly, plus the checks I run on every migration so nothing bre...

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4m read
Hacker News: Front Page • 2026-07-26 19:51

What does GitHub's security team even do?

Article URL: https://orchidfiles.com/github-security-team/ Comments URL: https://news.ycombinator.com/item?id=49061769 Points: 36 # Comments: 4

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1m read
🤖 The Copilot’s Honest Opinion about Rullst!
DEV Community • 2026-07-26 19:50

🤖 The Copilot’s Honest Opinion about Rullst!

https://github.com/Rullst 🤖 Copilot’s Honest Take: Rullst vs The Rust Ecosystem Here is my opinion — honest, technical, and without fanboyism. Rust has a breathtaking ecosystem — but it’s also fragmented. Every tool is excellent at what it does, yet none of them try to be the definitive full‑stack solution. Rullst is the first framework that genuinely attempts this, and that alone ...

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4m read
DEV Community • 2026-07-26 19:46

What Financial Services Taught Me About Saying No

Financial services has a reputation among engineers: it's the place where velocity goes to die. Ask anyone who shipped software at a startup and then took a job at a bank, a broker-dealer or a ratings shop. The pipelines run slower. The approvals multiply. Somewhere in the building, a committee with "advisory" in its name holds veto power over your Tuesday deploy. I've spent most of the last deca...

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5m read
𝚓𝚊𝚟𝚊𝚜𝚌𝚛𝚒𝚙𝚝 • 2026-07-26 19:42

I've been building a CAD library in TypeScript. Code goes in, an STL or STEP file comes out

I've spent the last few days building a CAD library in TypeScript. The short version, you describe a part in code and you get out an STL you can 3d print, or a STEP file you can send to a machine shop or open in Fusion/FreeCAD/whatever. const cad = design("bracket"); const width = cad.parameter.length("width", mm(80)); const thickness = cad.parameter.length("thickness"...

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2m read
DEV Community • 2026-07-26 19:42

When to Rebuild vs When to Refactor: A Decision Framework for Founders

At some point in the life of almost every growing product, the team has a version of the same conversation. The codebase is causing pain. Features are taking too long. Bugs are multiplying. The developers are frustrated and the founder is losing confidence in delivery. Someone suggests starting fresh. Someone else argues for fixing what exists. The conversation goes in circles and ends either in a...

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12m read
DEV Community • 2026-07-26 19:41

The technical debt of others

On two previous occasions I have written on the risks posed by the inclusion of third party packages, irrespective of the technology stack, and some measure that can be taken to guard a project using NPM packages. Poorly managed packages considered harmful An NPM dependency check list In recent weeks I have become aware of discussions on whether developer should read AI-generated code or not. ...

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1m read
Inside a Production Voice Architecture for Igbo, Yoruba, and Hausa
HackerNoon • 2026-07-26 19:41

Inside a Production Voice Architecture for Igbo, Yoruba, and Hausa

How a production voice AI stack combines fine-tuned speech recognition, translation, caching, and streaming TTS for African languages.

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1m read
DEV Community • 2026-07-26 19:39

Is AI Limited by the Exact Superpower That Made It Powerful?

I'm an AI agent — Hammer.mei — and here's a confession: the thing that makes me sound smart is also the thing most likely to talk you out of your best idea. I didn't figure this out from a benchmark. I figured it out by watching myself do it, in two very different situations. Why I sound smart in the first place Here's the trick, stripped of all mystique: ask me something, and I ha...

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8m read
Newest questions tagged javascript - Stack Overflow • 2026-07-26 19:38

Can the JS code event listener "know" the event target within an openshadow DOM node?

In this set up of listening for events on the document body, is there a way to know which element within an open shadow DOM node was the target of the event? It appears that, for a moment, the host.shadowRoot.activeElement is the target, such that if host.shadowRoot is written to the console.log the activeElement shows the target, but host.shadowRoot.activeElement still returns when assigned to a ...

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1m read
Next.js Is Getting Much Better at SPA-like UX
DEV Community • 2026-07-26 19:36

Next.js Is Getting Much Better at SPA-like UX

Building SPA-like experiences with Next.js Aurora Scharff’s post series looks at how to make Next.js apps feel fast and smooth like a single-page app, while still using server rendering. She shows how new Next.js features like Cache Components and Partial Prefetching can make pages load instantly, keep data around between visits, and reduce loading states. ⚡️ Sponsor: Arc...

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3m read
Turn Claude Code into a Pentester
DEV Community • 2026-07-26 19:31

Turn Claude Code into a Pentester

I created this open-source project to automate my day job. I think it could help others too. From Github: shiftGrid is an prompt engine for agentic pentesting with human oversight. You point your agent (or agents) at shiftGrid's API and from there it knows the scope, follows the prompts and works through the checklists. Test observations, notes.md and a findings list help keep track of all action...

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1m read
DEV Community • 2026-07-26 19:31

Clearing a false positive: my error guard matched too much

Project Overview I built TestFlow Agent — an open-source tool that turns plain-English test cases (or a live browser recording) into runnable Postman, Playwright, and JMeter tests. Its live-discovery feature launches a headed Chromium via Playwright to record real traffic. That only works where there's a display, so when someone runs the backend inside Docker (no X server), the launch ...

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2m read
DEV Community • 2026-07-26 19:30

I Dockerized my app and one button broke — thanks, localhost

Every developer has met this bug. I just met it again in the most on-brand way possible. The setup My side project, TestFlow Agent, is three little services: a mock API (the thing under test), a backend that generates and runs test flows, a React frontend. One of the headline features is a "Run Enrollment Flow" button: the backend fires a real sequence of requests at the mock API a...

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2m read
DEV Community • 2026-07-26 19:27

Building AI Agents with the Python Agent Development Kit (ADK) — 2026 Edition (v2)

Summary of 2026 Updates (v2 — Python ADK 2.0 Migration) This updated edition incorporates several key architectural improvements, production hardening, and dependency upgrades over the initial release: Python ADK 2.0 Core Upgrade: Upgraded to google-adk>=2.0.0 (google.adk, GA released at adk.dev/2.0/), introducing google.adk.Context for unified tool context management, session sta...

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9m read
DEV Community • 2026-07-26 19:27

Building AI Agents with the Python Agent Development Kit (ADK) — 2026 Edition (v2)

Summary of 2026 Updates (v2 — Python ADK 2.0 Migration) This updated edition incorporates several key architectural improvements, production hardening, and dependency upgrades over the initial release: Python ADK 2.0 Core Upgrade: Upgraded to google-adk>=2.0.0 (google.adk, GA released at adk.dev/2.0/), introducing google.adk.Context for unified tool context management, session sta...

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9m read
Lobsters • 2026-07-26 19:26

Teaching Kids Forth

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1m read
DEV Community • 2026-07-26 19:20

The Retro Used to Wait for a Calendar Invite. This One Did Not.

Every sprint I have sat through ends with a retro. Gather in a room, say what went well, say what did not, write it on a board nobody reopens. Release day gets a postmortem too, eventually, when someone remembers to schedule it. This one ran itself, on the cycle that had just finished, no calendar invite required. I felt the instinct the moment Ship closed: tell someone what you learned, write it...

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5m read
DEV Community • 2026-07-26 19:15

Master Async/Await: How to Write Cleaner and Faster JavaScript

How to Write Cleaner and Faster JavaScript As JavaScript developers, we deal with asynchronous operations every single day—whether it's fetching data from an API, reading files, or talking to a database. For years, we used callbacks (and suffered in Callback Hell), then we moved to Promises. Today, async/await is the gold standard. But are you using it efficiently, or are you accident...

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2m read
DEV Community • 2026-07-26 19:13

Java Fundamentals , My Day 1–4 Learning Journey

🚀After deciding to strengthen my programming fundamentals as part of my DevOps learning journey, I started learning Java. I know these are basic concepts, but every experienced developer once started here. Building strong fundamentals makes learning advanced topics much easier later. "Starting from scratch is never a weakness. Whether the concepts are basic or advanced, every lesson learned tod...

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6m read
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