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DEV Community • 2026-04-23 15:22

𝗟𝗼𝗴𝗶𝗻 𝗠𝗲𝗰𝗵𝗮𝗻𝗶𝘀𝗺𝘀

🔐 Every app has a login. But do you know what's happening under the hood? Here are the most common login mechanisms every developer (and tech enthusiast) should know: 𝗣𝗮𝘀𝘀𝘄𝗼𝗿𝗱-𝗕𝗮𝘀𝗲𝗱 𝗔𝘂𝘁𝗵𝗲𝗻𝘁𝗶𝗰𝗮𝘁𝗶𝗼𝗻 The most traditional method — user provides a username/email and a secret password.   • Plain passwords (basic, least secure)   • Hashed + salted passwords (bcrypt, Argon2, PBKDF2)   • Password manage...

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2m read
DEV Community • 2026-04-23 15:21

Show Dev: I made a glassblowing sim you blow into

Why blow into your laptop? I've been building a series of tiny, weird web toys under the banner of "edge case factory" — apps that exist mostly because nobody asked for them. The latest one is Glassblower's Breath, a browser-based glassblowing simulator where you shape a virtual vase by literally exhaling into your microphone. One breath. One vase. No undo. The whole thing started fro...

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3m read
DEV Community • 2026-04-23 15:21

Incident Communication: The Status Page That Builds Trust

Silence Destroys Trust During our worst outage, we went 35 minutes without updating the status page. Twitter filled the void. Theories ranged from data breach to bankruptcy. A customer posted "They're probably shutdown" which got 200 retweets. The incident was a 20-minute database migration gone wrong. The reputation damage lasted months. The Update Cadence status_page_u...

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3m read
DEV Community • 2026-04-23 15:21

3 Ways Your AI Agent Can Alert You: Push, Telegram, and WalletConnect Notifications

When your AI agent manages real funds, you need to know what it's doing — especially when something goes wrong. Most wallet infrastructure forces you to choose between basic email notifications or no alerts at all, leaving you flying blind when your agent trades thousands of dollars. Setting up proper notifications for self-hosted AI agents shouldn't require building your own alert system from sc...

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5m read
DEV Community • 2026-04-23 15:20

How I built an AI RAG system to convert PDF to Q&As

Turning a PDF into a set of spaced repetition flashcards sounds like a single step. Upload file, get questions. In practice it is five distinct engineering stages, each with its own failure modes, and at least two of them surprised me in ways I did not anticipate when I first sketched the design. If you want to see the end result in action, try it at LongTermMemory before reading the rest. This ...

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8m read
The Struggle to Optimize the Performance of the NVIDIA Triton Inference Server Running on AWS ECS
DEV Community • 2026-04-23 15:19

The Struggle to Optimize the Performance of the NVIDIA Triton Inference Server Running on AWS ECS

“Why is it so slow even though I have a GPU?” I’d like to share my three-week struggle, which began with this single question. Introduction While developing the Vision AI service, I chose Nvidia Triton Inference Server as the framework for model serving. Its features—such as multi-framework support, dynamic batching, and ensemble pipelines—were excellent, and I was particularly dr...

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8m read
Secure Your Swarm: Laying the Foundation with mTLS in v1.5.0
DEV Community • 2026-04-23 15:19

Secure Your Swarm: Laying the Foundation with mTLS in v1.5.0

Security shouldn't be a trade-off for simplicity. In the world of Docker Swarm, managing secure access often involves a complex dance of manual certificate generation or relying on insecure plain-text connections. With the release of SwarmCLI v1.5.0, we’re laying the foundation to change that. We’ve introduced the open-source SwarmCLI Proxy, a dedicated security layer that brings mTLS authenticat...

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4m read
DEV Community • 2026-04-23 15:15

6 Things Quietly Killing Your Startup from the Inside - and How to Fix Them

When a startup dies, the post-mortems usually feature nice, tidy explanations: the market shifted, the money ran out, a key engineer left. These reasons are convenient for investors and neutral enough for the team. The only problem is - they're almost never the actual cause. I'm a co-founder of GenSoft, a QA agency that usually gets called into startups once "something has already gone wrong." Ov...

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12m read
DEV Community • 2026-04-23 15:15

The SwarmCLI Proxy: Securing Docker Swarm Beyond the Default Engine Socket

Accessing a Docker Swarm cluster often feels like a choice between two extremes: complex VPN/SSH tunneling or the risky exposure of the raw Docker Engine socket. With the introduction of the SwarmCLI Proxy, we've built a third way—a dedicated security and orchestration layer designed to harden your cluster while simplifying how you manage access. This isn't just an update; it's a foundational shi...

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3m read
DEV Community • 2026-04-23 15:14

Best Free Stock Market APIs and Data Tools in 2026: A Developer's Honest Comparison

Best Free Stock Market APIs and Data Tools in 2026: A Developer's Honest Comparison If you've spent more than an hour trying to find a truly free stock market API that actually works, you're not alone. The landscape has changed dramatically over the past few years, and what used to be straightforward options have either disappeared, become unreliable, or quietly locked features behind p...

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12m read
Hacker News • 2026-04-23 15:14

Show HN: Core – open-source AI butler that clears your backlog without you

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1m read
From webrtc-internals Dump Files to Production Monitoring: A Practical Migration Guide
HackerNoon • 2026-04-23 15:10

From webrtc-internals Dump Files to Production Monitoring: A Practical Migration Guide

Manual webrtc-internals dump files don't scale past a handful of beta testers. This guide walks through a real bug scenario comparing the manual workflow (days to weeks) against automated collection with the open-source rtcstats pipeline (minutes), and shows how to set up both client and server components to collect all 200+ WebRTC metrics automatically for every session.

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1m read
DEV Community • 2026-04-23 15:09

I Cancelled Codex Two Months Ago. Opus 4.7 Brought Me Back.

I let my OpenAI Pro subscription lapse two months ago. Claude Max 20x was covering everything. Last week I renewed ChatGPT Pro. Two hundred dollars a month on top of Claude Max. Anthropic released Opus 4.7 on April 17. Within five days, I went from one AI subscription to two. Here's why. The regression was real — and someone measured it. AMD engineer Stella Laurenzo analyzed 6,852 Claude Code ...

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2m read
Hacker News: Front Page • 2026-04-23 15:08

To Protect and Swerve: NYPD Cop Has 547 Speeding Tickets

Article URL: https://nyc.streetsblog.org/2026/04/23/to-protect-and-swerve-nypd-cop-has-527-speeding-tickets-yet-remains-on-the-force Comments URL: https://news.ycombinator.com/item?id=47876647 Points: 5 # Comments: 0

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1m read
20+ signs you're a real programmer (using two monitors isn't one)...
DEV Community • 2026-04-23 15:07

20+ signs you're a real programmer (using two monitors isn't one)...

You're Not a Programmer Until... Cesar Aguirre Cesar Aguirre ...

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1m read
DEV Community • 2026-04-23 15:05

How OpenSearch Plugins Really Work: Architecture & Extension Points

OpenSearch is powerful out of the box, but its true flexibility comes from plugins. Yet most developers treat plugins as black boxes: you install them, they work, and you move on. But what if you need to build one? Or understand why a plugin broke after an upgrade? Or design a system that integrates with OpenSearch's plugin ecosystem? In this post, I'll walk you through how plugins actually work:...

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7m read
My Claude Code status bar colors rate-limit bars by pace, not fill
DEV Community • 2026-04-23 15:01

My Claude Code status bar colors rate-limit bars by pace, not fill

Most Claude Code status bars render a flat string: model · tokens used. Mine renders two lines, and four things on those lines changed how I read them. This post walks through each mechanism with the exact bash, so you can port any of them into your own statusline.sh. 1. Pace, not fill, on rate-limit bars Look at the screenshot above. The seven-day bar is almost full. It's also green...

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7m read
Hacker News • 2026-04-23 15:01

Show HN: LocalLLM – Recipes for Running the Local LLM (Need Contributors)

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1m read
DEV Community • 2026-04-23 15:00

Cursor + Claude: stop shipping flaky API clients

I generate a typed API client from an OpenAPI file. I run contract tests locally with zero servers. I make Cursor fix only what the tests prove. I ship fewer “it works on my laptop” bugs. Context I build small SaaS projects. Usually solo. Usually fast. My most common failure mode isn’t UI. It’s the boring glue code between frontend and backend. I’d tweak an endpoint. Rename a field...

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6m read
DEV Community • 2026-04-23 15:00

Cloudflare R2 vs S3 for VPS Hosting: Real Tradeoffs

If you’re choosing object storage for a VPS stack, cloudflare r2 vs s3 isn’t a theoretical debate—it’s a monthly bill, an egress surprise, and a latency story your users will feel. The right pick depends on whether your bottleneck is bandwidth, ecosystem integration, or operational simplicity. What actually matters for VPS hosting workloads When you run apps on a VPS (API servers, Word...

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4m read
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