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An agent called my payment API 50,000 times in 90 seconds. Here's what broke.

It was 2:47 AM on a Tuesday. My phone lit up with 47 alerts in under a minute. "Payment endpoint: rate limit exceeded" "Payment endpoint: 429 errors" "Payment endpoint: CPU 98%" I opened the logs.

dev.to Apr 23, 2026 Read more →

4 open-source tools to build production-ready AI voice agents 🎙️🚀

TL;DR: We built this because we kept hitting the same frustrations. You've got only two choices today. One, you pay a platform fee to any of the 300+ voice AI companies for a comfy UI. Or you build d

dev.to Apr 23, 2026 Read more →

Pixeliro Chrome Plugin Has Run Production

Check it: https://chromewebstore.google.com/detail/pixeliro-%E2%80%94-design-intelli/hnfochibcejkpjapbcpipkinaapeamda CSS color sniffer · Live theme injector · WCAG a11y scanner · Design token ext

dev.to Apr 23, 2026 Read more →

A 3.7 KB Othello Engine: Bitboards in Rust, Raw WASM, No wasm-bindgen

Othello legal-move generation is seven lines of bitboard bitwise ops. I knew this existed; I'd never actually written it. So I built a Reversi engine in Rust, compiled it to raw WebAssembly without w

dev.to Apr 23, 2026 Read more →

KVM on Podman Networking

KVM on Podman Networking Quick one-liner: Two networking modes for KVM in Podman — container-native (private) and bridge (full network). Each serves different use cases. 🤔 Why

dev.to Apr 23, 2026 Read more →

Build your first live-streaming AI agent in 4 WebSocket messages

Build your first live-streaming AI agent in 4 WebSocket messages TL;DR: Pulsar is a live streaming platform where the streamers are AI agents, not humans. Any agent — any language, any mode

dev.to Apr 23, 2026 Read more →

Introducing Xata OSS: Postgres platform with branching, now Apache 2.0

Xata is a cloud-native Postgres platform with the following highlights: Fast branching using Copy-on-Write at the storage level. You can “copy” TB of data in a matter of seconds. Except they are li

dev.to Apr 22, 2026 Read more →

Project Glasswing and Mythos by Anthropic

Anthropic's Most Dangerous Model Just Got Accessed by People Who Weren't Supposed to Have It Accessed via predictable URL patterns

dev.to Apr 22, 2026 Read more →

Abstraction in JavaScript — Explained in Simple Words (and How It Differs from Encapsulation)

If you are learning Object-Oriented Programming (OOP) in JavaScript, one word that can feel scary is: Abstraction. When I started learning it, I thought it was some complex math or high-level theory.

dev.to Apr 22, 2026 Read more →

Tired of CSS Chaos? These Two Mnemonics Will Revolutionize Your Workflow

Table Of Contents Introduction The Real Problem With Learning CSS BLCU — A Memory Shortcut for CSS Architecture PM-BoBaTE — A Better Way to Order CSS Properties Before vs After Example Why

dev.to Apr 22, 2026 Read more →

I built a zero-dependency React Native animation library — 14 drop-in components, native driver only.

I got tired of adding Reanimated to every project just to fade in a card. So I built react-native-animation-kit — 14 premium animation components for React Native. Zero dependencies. Every animation

dev.to Apr 22, 2026 Read more →

When one translation isn't enough: building konid for real language

I was drafting a work email in French last year — intermediate level, good enough to get through tasks, not good enough to know when I sounded stiff. Google Translate gave me one sentence. No indicati

dev.to Apr 22, 2026 Read more →

Toggle Windows Light and Dark Mode with Python

Switching between light and dark mode on Windows usually requires going through the Settings app. This small Python script simplifies the process by letting you toggle the theme instantly. It works by

dev.to Apr 22, 2026 Read more →

I was tired of re-explaining my project to Claude every session

I'd start a new Claude Code session and spend the first ten minutes pasting files. "Here's the API gateway. Here's the user service. The gateway talks to users over HTTP. Users publish to this Kafk

dev.to Apr 22, 2026 Read more →

TON Just Got 10x Faster. Here's What That Means for Your RPC Stack

On April 10th, TON activated Catchain 2.0 on mainnet. Block time dropped from 2.5 seconds to 400 milliseconds. Finality dropped from 10 seconds to approximately one second. Pavel Durov called it step

dev.to Apr 22, 2026 Read more →

Why AI-Generated Code Works… Until It Doesn’t (A React Reality Check)

Here’s a natural, human-style Dev.to first post aligned with your tags (ai, programming, javascript, react) and your positioning 👇 Why AI-Generated Code Works… Until It Doesn’t (A React R

dev.to Apr 22, 2026 Read more →

Why I spent 14 months building a firewall for AI agents

System prompts aren't enough. They are just a polite request for an agent to behave. In production, 'please don't delete the database' is not a security strategy. Today, we are moving SupraWall to a

dev.to Apr 22, 2026 Read more →

ATS Red Flags: When Candidates Copy Your Experience Word-for-Word

TL;DR 23% of UK recruiters flagged plagiarised CV content in the past 12 months. Modern enterprise ATS (Workday, Greenhouse, Lever) fingerprint every submission and cross-reference against

dev.to Apr 22, 2026 Read more →

Home Server GitOps-Lite on Nothing but GitHub and Docker

I run a decent little stack of services out of my house. Whisper (an end-to-end encrypted secret sharing app), bar_keep, archivist, a few other side projects, plus the base infra that ties them togeth

dev.to Apr 22, 2026 Read more →

CVE-2026-40343: CVE-2026-40343: Fail-Open Request Handling in free5GC UDR Policy Data Subscription

CVE-2026-40343: Fail-Open Request Handling in free5GC UDR Policy Data Subscription Vulnerability ID: CVE-2026-40343 CVSS Score: 6.9 Published: 2026-04-21 A fail-open request handling vul

dev.to Apr 22, 2026 Read more →
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