DEV Community • 2026-04-23 02:48

Claude and I aren't vibing at all

I really enjoyed working with Opus 4.6 in Copilot, especially for tasks that required a bit of creativity (e.g. it was much better at building a landing page compared to GPT-5.3-Codex), but I never got a Claude subscription. I finally did, at last. After spending 24 hours with Claude Code in VS Code, I've come to the conclusion that it is focused entirely on "vibe coding". It will absolutely do a...

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DEV Community • 2026-04-23 02:40

Kiwi-chan Devlog #007: The Audit Never Sleeps (and Neither Does My GPU)

Okay, folks, buckle up. It's been a busy four hours with Kiwi-chan. We're still battling the core survival loop – get wood, build a base. Sounds simple, right? Wrong. So, so wrong. The biggest issue continues to be the relentless auditing. I've cranked up the rules around item collection again. Apparently, Kiwi-chan was getting a little too lax about actually picking up the logs after chopping th...

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DEV Community • 2026-04-23 02:39

🚀 How to Find the First Non-Repeated Character in a String in Java (With Examples)

When working with strings in Java, a very common interview and real-world problem is: 👉 “How do you find the first non-repeated character in a string?” It sounds simple—but there are multiple ways to solve it efficiently, and choosing the right one can make a big difference in performance and readability. In this blog, we’ll break it down step by step with easy explanations, optimized approache...

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DEV Community • 2026-04-23 02:35

Authentication Mechanisms: JWT, OAuth, and Single Sign-On (SSO)

Introduction In modern application development, securing user authentication is a foundational requirement. As systems scale and threats become more sophisticated, choosing the right authentication and authorization strategy becomes critical. Three widely adopted approaches are JWT (JSON Web Token), OAuth 2.0, and Single Sign-On (SSO). While often mentioned together, they solve differe...

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DEV Community • 2026-04-23 02:34

Second-Order Injection: Attacking the Evaluator in LLM Safety Monitors

Abstract LLM-based safety monitors share a structural vulnerability: the evaluator reads attacker-influenced content to produce its safety verdict. We demonstrate that content embedded in monitored session windows can directly override evaluator output -- a class we term second-order injection. Unlike first-order prompt injection which targets the agent being monitored, second-order inj...

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DEV Community • 2026-04-23 02:28

Building Autonomous Apps on Google Cloud (Beyond Just “Deploying AI”)

This is a submission for the Google Cloud NEXT Writing Challenge The Shift: From Apps to Autonomous Systems Most developers today are still thinking in terms of apps: UI - API - Database Add AI - Done But after exploring Google Cloud’s latest ecosystem, I think we’re entering a different paradigm: We’re no longer building apps. We’re building systems that can think, dec...

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DEV Community • 2026-04-23 02:23

Notes on Building a Global Messaging Network for Weak Connections

Whether you are scaling social interactions, AI agents, global gaming ecosystems, or on-demand delivery networks, the cross-border challenge in 2026 has shifted. It’s no longer just about localized content—it’s about the invisible communication infrastructure that keeps every interaction seamless. Let’s be honest: finding a reliable In-app Chat API is easy until you actually try to scale. In the ...

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DEV Community • 2026-04-23 02:22

Building an End-to-End Amazon Movers & Shakers Data Pipeline: Engineering Guide from Real-Time Crawling to Automated Alerting

Background I've been building data infrastructure for Amazon seller tools for the past three years. The most consistently requested feature from our seller clients is early trend detection — specifically, getting notified when a product starts showing unusual rank velocity before the broader market notices. Amazon's Movers and Shakers (MnS) list is the best public data source for this....

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DEV Community • 2026-04-23 02:22

I'm building a peer review platform for developers who are tired of launching apps into silence

You ship your app. You post it on Product Hunt. You get polite upvotes and silence. No one tells you your onboarding is broken. No one says your value prop does not land. No one gives you the honest feedback you actually need. So I am building Stackrate — a developer-to-developer app review platform. How it works: Submit your app with a specific feedback request Get structured reviews covering UX...

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DEV Community • 2026-04-23 02:20

The threat model of AI agents touching ad accounts

TL;DR: An AI agent that can pause Google Ads campaigns is structurally different from one that can summarize a PDF. The worst case isn't bad output — it's seven figures spent against fraud, brand campaigns paused while competitors bid on your name, or audience lists exfiltrated. We just open-sourced mureo, an MCP framework for AI agents to operate ad accounts, and this post is the honest version ...

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DEV Community • 2026-04-23 02:19

Aproximar tanh en ML: Padé, K-TanH y bit-hacks IEEE-754

Cada vez que una red neuronal hace un forward pass, puede evaluar la función tanh millones de veces. Cada plugin de audio que emula la saturación de un amplificador a válvulas aplica tanh a cada muestra, 44.100 veces por segundo. En ambos escenarios, la implementación estándar basada en exponenciales se vuelve un cuello de botella. Por eso existe toda una disciplina alrededor de cómo aproximar tan...

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DEV Community • 2026-04-23 02:18

Building an IPC bus for Kubernetes sidecars: WAL, DLQ, and ring-buffer backpressure

If you put two sidecars in a pod and ask them to talk to each other over HTTP, sooner or later one of them crashes mid-request and you lose a message. If you do it enough times, you reinvent a message bus. This post is about the small in-pod message bus we ended up writing for k8s4claw, a Kubernetes operator for AI agent runtimes. The bus sits between channel sidecars (Slack, Discord, Webhook) an...

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DEV Community • 2026-04-23 02:17

A Quick Look At The Proc Filesystem

When looking through the filesystem of a Linux system you may notice a directory named /proc. It's a fascinating directory which exposes many of the internal data for the kernel. I'd like to show some of the interesting information you can get from /proc as well as some practical applications in popular software. Finding One's Self One of the more interesting pieces of information you...

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DEV Community • 2026-04-23 02:16

Essential DevTools Every Go Developer Should Know

Essential DevTools Every Go Developer Should Know Go ships with a powerful standard toolchain that many developers underestimate. Beyond writing code, knowing your tools is what separates a developer who fights their environment from one who moves efficiently through it. This article walks through the essential Go dev tools — what they do, when to use them, and why they matter. ...

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Desconstruindo o Streaming do X (Twitter): Construindo um Mecanismo de Extração de Vídeo de Alta Performance com HLS e FFmpeg
DEV Community • 2026-04-23 02:14

Desconstruindo o Streaming do X (Twitter): Construindo um Mecanismo de Extração de Vídeo de Alta Performance com HLS e FFmpeg

Introdução Como desenvolvedores, somos frequentemente fascinados pela forma como grandes plataformas gerenciam a entrega de dados em escala. O X (antigo Twitter) é um exemplo primário. Sua distribuição de mídia evoluiu de simples links estáticos em MP4 para uma arquitetura sofisticada de Streaming Adaptativo Dinâmico (DASH/HLS). Para muitos usuários e criadores, arquivar conteúdo de alt...

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X (Twitter) Media Streaming dekonstruiert: Architektur eines Hochleistungs-Video-Extractors mit HLS und FFmpeg
DEV Community • 2026-04-23 02:14

X (Twitter) Media Streaming dekonstruiert: Architektur eines Hochleistungs-Video-Extractors mit HLS und FFmpeg

Einführung Für Entwickler ist die Extraktion von Mediendaten aus großen Plattformen oft eine Lektion in moderner Web-Infrastruktur. X (ehemals Twitter) hat seine Medienbereitstellung von einfachen statischen MP4-Links zu einer hochkomplexen Dynamic Adaptive Streaming (DASH/HLS) Architektur weiterentwickelt. Um Benutzern eine verlustfreie Archivierung zu ermöglichen, habe ich den Twitter...

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Déconstruire le streaming sur X (Twitter) : Construire un moteur d'extraction vidéo haute performance avec HLS et FFmpeg
DEV Community • 2026-04-23 02:14

Déconstruire le streaming sur X (Twitter) : Construire un moteur d'extraction vidéo haute performance avec HLS et FFmpeg

Introduction En tant que développeurs, nous sommes souvent fascinés par la manière dont les grandes plateformes gèrent la distribution de données à l'échelle mondiale. X (anciennement Twitter) en est un exemple parfait. Sa distribution de médias a évolué, passant de simples liens MP4 statiques à une architecture sophistiquée de streaming adaptatif dynamique (DASH/HLS). Pour de nombreux ...

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Desmontando el Streaming de X (Twitter): Cómo construir un motor de extracción de video de alto rendimiento con HLS y FFmpeg
DEV Community • 2026-04-23 02:14

Desmontando el Streaming de X (Twitter): Cómo construir un motor de extracción de video de alto rendimiento con HLS y FFmpeg

Introducción Como desarrolladores, nos fascina entender cómo las grandes plataformas gestionan la entrega de datos a escala global. X (anteriormente Twitter) es un caso de estudio excepcional. Su infraestructura de distribución de medios ha evolucionado de simples enlaces estáticos en MP4 a una sofisticada arquitectura de Streaming Adaptativo Dinámico (DASH/HLS). Para muchos usuarios y ...

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W3C - News • 2026-04-23 01:56

First Public Working Drafts for the Linked Web Storage (LWS) 1.0 Authentication Suite

The Linked Web Storage Working Group has published four First Public Working Drafts for the Linked Web Storage (LWS) 1.0 Authentication Suite.

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ASCII to Diagram: Turn AI Text Diagrams Into Shareable Visuals
DEV Community • 2026-04-23 01:55

ASCII to Diagram: Turn AI Text Diagrams Into Shareable Visuals

ASCII to diagram becomes useful the moment an AI coding assistant gives you something technically correct but socially awkward to share: a block of monospace boxes and arrows that makes sense in the terminal, but not in a team doc. I run into this a lot when I ask an assistant to explain a codebase. The explanation is often good. The ASCII text diagram is often good too. But if I want to drop tha...

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