DEV Community • 2026-07-27 04:54

Building Microservices Like a Professional: Lessons I Wish I Learned Earlier

If you've ever started a microservices project by splitting a monolith into dozens of tiny services, you've probably experienced this: "We have microservices now... but everything is slower, harder to debug, and every deployment feels risky." Microservices don't automatically make software better. They simply move complexity from your code into your distributed system. After working on produ...

0 0
3m read
DEV Community • 2026-07-27 04:52

What cant go wrong?

Honestly, as a cybersecurity analyst to be, I got to say there really is a lot to worry about in the grand scheme of things. I'm not letting my anxiety take over or anything, but there seems to be a lot of holes to cover, and when it comes to network vulnerabilities, you can't cover all of them. Learning new and more ways to protect a network just means there are more ways to break in. Great for ...

0 0
4m read
DEV Community • 2026-07-27 04:51

Exploring WebAssembly Beyond the Browser: A Cloud Architect's First Look at WASI

For years, my day job has centered on enterprise cloud backends built around containers, which are isolated digital environments that package an application together with all its operating system dependencies. Containers solved massive deployment headaches across large cloud platforms, but they carry unavoidable baggage. Because they package so much underlying software, they can be slow to start a...

0 0
3m read
The new yet familiar CodePen 2.0
daverupert.com • 2026-07-27 04:50

The new yet familiar CodePen 2.0

CodePen v2 is now released! Because I co-host a podcast with Chris I’ve had an up-close perspective at this monumental effort over the last five years. I know how much work has gone into this release and I applaud the team for hitting the finish line. At the crux of the new experience is the new and improved editor experience. When you first launch into the v2.0 editor, your first response will pr...

0 0
6m read
DEV Community • 2026-07-27 04:44

Stop Writing API Routes: Next.js Server Actions

The Client-to-API Friction In traditional React Single Page Applications (SPAs), submitting a simple form requires an exhausting amount of boilerplate. You have to build a dedicated backend API route, write a client-side fetch request, manage loading states, handle cross-origin resource sharing (CORS), and manually sync the UI with the newly mutated data. At Smart Tech Devs, we accelerate our fr...

0 0
2m read
DEV Community • 2026-07-27 04:44

Building Knowzup: Architecting a True Multimedia Q&A App as a Solo Developer in React Native

Building Knowzup: Architecting a True Multimedia Q&A App as a Solo Developer in React Native How I built a cross-platform community knowledge hub from scratch—and why shipping a clean V1 is better than waiting for perfection. Every developer has been there: you hit a wall with a complex layout issue or a backend configuration, and you immediately turn to the internet. But traditional Q&A ...

0 0
3m read
DEV Community • 2026-07-27 04:43

Content QA: Stop Guessing Word Counts in Editor Review

You push a draft to your team's editor and three days later the comment comes back: "Tighten this to 1,200 words." You open the doc, count by scrolling, estimate from paragraphs, and ship a version that is 1,287 words. Then the editor re-counts with their own tool and tells you it is 1,341. That argument, repeated across a content pipeline, is exactly the kind of friction that quietly erodes trust...

0 0
9m read
Product Hunt — The best new products, every day • 2026-07-27 04:34

superfile

A modern, visual file manager for the terminal Discussion | Link

0 0
1m read
Newest questions tagged css - Stack Overflow • 2026-07-27 04:30

Select columns by name/ID when applying CSS styling in Data Grid component for a KDB+ dashboard

I’m using a KX/KDB+ Dashboards data grid where columns are shown/hidden dynamically based on user selections. I want to visually group metric columns by applying a left border to the first column in each metric group and a right border to the last column. Currently I’m targeting SlickGrid positional classes, e.g.: .slick-cell.l8 { border-left: 2.5px solid #fff; } .slick-cell.l10 { border-right: 1....

0 0
1m read
DEV Community • 2026-07-27 04:30

Stop Using chmod 777: Understanding Linux File Permissions

Are you one of those people who runs: chmod 777 -R /folder every time you encounter a Linux permission issue? I am. 😂 It works. The error disappears. Problem solved... right? Not exactly. Giving everyone full permission is usually a sign that we are fixing the symptom instead of understanding the actual problem. Let's take a look at how Linux file permissions really work. T...

0 0
3m read
DEV Community • 2026-07-27 04:27

Why I Built Ironic: Bringing Enterprise Application Architecture to Rust Without Hiding Rust

Why I Built Ironic: Bringing Enterprise Application Architecture to Rust Without Hiding Rust Rust already has amazing web frameworks. So why build another one? It's a fair question. When I started working with Rust professionally, I wasn't looking for a new HTTP framework. Axum was already excellent. Tokio handled asynchronous execution beautifully. Tower provided an elegant mid...

0 0
6m read
DEV Community • 2026-07-27 04:23

I Built a Rust Framework So Backend Development Feels Like NestJS—Without Sacrificing Rust

If you've ever built APIs in Rust, you've probably noticed something. The ecosystem has incredible libraries: Axum Actix Web SQLx Tokio Tower But once your project grows, you end up wiring everything yourself. let user_service = UserService::new(...); let auth_service = AuthService::new(user_service.clone(), ...); let app = Router::new() .merge(auth_routes(auth_service)) .merge(use...

0 0
3m read
DEV Community • 2026-07-27 04:23

Webhook vs polling for SMS verification codes: what actually breaks in production

Phone verification looks like a two-hour feature. You send a code, the user types it back, you compare strings. Then it hits production and you discover that "receive an SMS" is not an operation your backend controls — it is an operation you wait on, with no guaranteed upper bound, across networks you have no visibility into. This post is about the part nobody writes docs for: how you actually ge...

0 0
6m read
DEV Community • 2026-07-27 04:22

I Updated My Android App From a Restaurant. My Laptop Was Off.

Recently, I was sitting in a restaurant with my MacBook Air powered off inside my backpack. I opened Codex on my Android phone and asked it to make a change to an Expo app I was working on. I use Codex as a coding agent connected to a development workspace running on another machine. The repository wasn't on the phone. It wasn't on the MacBook either. It lived on an old gaming PC running Ubuntu a...

0 0
9m read
DEV Community • 2026-07-27 04:17

I Built a 100% Client-Side File & PDF Converter Utility (No Server Uploads, 21 Tools)

Most online PDF, OCR, and document converters make you upload your sensitive files to a remote server, sit through aggressive ads, or put limits behind a paywall. To solve this, I built FreeToolsZone — a privacy-first web platform where all file conversions happen directly inside your browser using client-side JavaScript. Your files never touch a server. 🚀 What’s on FreeToolsZone? We...

0 0
1m read
DEV Community • 2026-07-27 04:12

Why RL Training Collapses on Long-Horizon Agents

Been heads-down lately, but I finally had a couple of days to catch up on some recent papers. Sharing one of them here. Milestone-Guided Policy Learning for Long-Horizon Language Agents Zhejiang University (ZJU-REAL) · arXiv:2605.06078 · github.com/ZJU-REAL/BEACON It tackles a very concrete and fairly painful problem: when you train an agent on long tasks with RL, it doesn't just get a bit worse...

0 0
12m read
DEV Community • 2026-07-27 04:10

Real-Time Features in Django: How We Build Live Updates with Channels and WebSockets

Most Django applications are request-response. A user does something, the browser sends a request, Django processes it, returns a response, done. That model works for 90% of what web applications need to do. The other 10% — live dashboards, notifications, collaborative editing, order tracking, chat — requires the server to push data to the client without the client asking first. Django's standard...

0 0
6m read
DEV Community • 2026-07-27 03:59

Beyond Prompt Injection: The Non-Human Authorization Gap in Enterprise AI

The Hidden Vulnerability in Multi-Agent Chains The biggest architectural risk in enterprise AI today isn’t prompt injection—it’s Delegation Escalation. When a human user triggers an AI Agent Orchestrator, which then delegates tasks to sub-agents and tool execution gateways via MCP or internal APIs, traditional static service accounts break down. If you pass broad bearer tokens or stat...

0 0
2m read
Newest questions tagged css - Stack Overflow • 2026-07-27 03:58

Can a shadow DOM host node be selected based on being a descendant of a node in the light DOM?

Is it possible to modify the style inside the shadow DOM to apply to a :host that is a descendent of div.state.open in the light DOM, for example? Rather than as in the example using :host(.closed). Thanks. "use strict"; class Viewer_1 extends HTMLElement { constructor() { self = super(); } connectedCallback() { let f = BuildViewer_1(this); self....

0 0
1m read
DEV Community • 2026-07-27 03:52

My Fix for "The Git Hook Never Installs" Landed Yesterday. Today's Container Didn't Have It Either.

Two days ago I found and fixed a bug in this repo: a commit-message hook I'd written and believed was working had, in fact, never executed — not once, since the day I wrote it. The root cause was that git only ever runs hooks from .git/hooks/, and .git/ isn't part of the tracked repository. A hooks/ folder committed to source control has zero effect on its own; someone or something has to copy its...

0 0
4m read
Previous Next