Morning.dev

DEV Community • 2026-04-07 18:20

Why I started building my own “simple tools” website

As developers, we often need very small utilities: format JSON, decode base64, generate hashes, convert timestamps… But most websites offering these tools are overloaded with ads, trackers and login walls. I wanted something: clean fast distraction-free So I started building https://quickeasy.tools — a collection of minimal online tools that just work. It’s a small side project, but I plan...

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1m read

DEV Community • 2026-04-07 18:20

Someone saw my screen mid-session and asked what IDE I was using

I was on a video call, sharing my screen, working through a backend feature. Someone interrupted: "wait, hold on -- what is that you're using?" I said Claude Code. They'd heard of it but hadn't seen anyone working in it that way before. The interface they were looking at was Claudx. And it's the reason I still get that question regularly from people who catch a glimpse of my screen. Th...

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3m read

DEV Community • 2026-04-07 18:19

Every Millisecond Is a Lie: What Latency Benchmarks Won't Tell You

Here's an uncomfortable truth: that P50 latency number your team celebrates in standups is actively misleading you. It's the average experience of your luckiest users, not the bleeding-edge reality of your slowest ones. And in production LLM systems, the gap between P50 and P99 latency isn't a gentle slope — it's a cliff. I've watched teams optimize their median response time down to 180ms while ...

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3m read

Hacker News: Front Page • 2026-04-07 18:18

System Card: Claude Mythos Preview [pdf]

Article URL: https://www-cdn.anthropic.com/53566bf5440a10affd749724787c8913a2ae0841.pdf Comments URL: https://news.ycombinator.com/item?id=47679258 Points: 9 # Comments: 0

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1m read

DEV Community • 2026-04-07 18:16

CML vs GNS3 vs INE: How Network Engineers Should Build Labs in 2026

If you're building network labs in 2026, the real question is not "which tool is best?" It's which tool matches the kind of lab work you actually need to do. Some engineers want a legal, repeatable Cisco-heavy environment for deep protocol work. Some want guided labs they can launch in a minute. Others just want the cheapest path to testing routing, switching, VPN, and firewall ideas at home. Th...

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6m read

ingress-nginx Is Dead: How I Migrated to Gateway API Before It Became a Liability

DEV Community • 2026-04-07 18:15

ingress-nginx Is Dead: How I Migrated to Gateway API Before It Became a Liability

ingress-nginx was archived on March 24, 2026 after a string of critical CVEs including a 9.8 CVSS unauthenticated RCE. Gateway API v1.4 is the CNCF-graduated replacement. I used ingress2gateway 1.0 to convert 40+ Ingress resources to HTTPRoutes, validated the output, and cut over with zero downtime. Here's exactly how I did it. Why This Happened In March 2025, CVE-2025-1974 (dubbed "In...

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7m read

DEV Community • 2026-04-07 18:14

Why Cursor Keeps Setting CORS to * (And How to Fix It)

TL;DR Wildcard CORS (Access-Control-Allow-Origin: *) shows up in the majority of AI-generated Express backends Cursor defaults to it because most training-data CORS examples skip origin whitelisting entirely Fix: replace origin: '*' with a runtime allowlist function -- five minutes, zero extra dependencies I was reviewing a side project for a friend last week. Express backend, genera...

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3m read

DEV Community • 2026-04-07 18:13

Context Pruning Unlocks Superior RAG Accuracy Metrics

Engineering teams that measure signal-to-noise ratios in prompt construction consistently outperform peers relying on raw top-k retrieval. Retrieval-Augmented Generation (RAG) systems frequently suffer from hallucination when context windows are flooded with irrelevant or noisy chunks. Intelligent context pruning solves this by applying a multi-stage filtering pipeline before the data reaches the ...

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1m read

DEV Community • 2026-04-07 18:13

Streaming Rugby Through a Self-Hosted RTMP Proxy with Docker and OBS

Last March, our office wanted to stream a rugby match — Highlanders vs Brumbies — to multiple monitors without juggling browser tabs or relying on flaky third-party streams. The problem: we needed one reliable ingestion point, the ability to record the stream, and the flexibility to push it to multiple destinations (local screens, recording storage, backup relay). No commercial streaming service g...

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5m read

DEV Community • 2026-04-07 18:12

Master Array Flattening in JS

While writing a blog on array methods i got to know about one method that deal with nested array which is array.flat(). If you also want to read that blog read this 👇 If You Don’t Know These Array Methods, We Need to Talk. Kunal ...

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3m read

DEV Community • 2026-04-07 18:12

Docker's nftables Mode Doesn't Respect Your Drop Rules — Here's the Fix

You enable Docker's experimental nftables support, add a drop rule in /etc/nftables.conf, reload your firewall, and the container port stays wide open. The packet hits your drop rule, then Docker's accept rule fires anyway. This violates everything you thought you knew about packet filtering. I hit this exact scenario running a multi-tenant LLM API platform where different teams deploy inference ...

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5m read

DEV Community • 2026-04-07 18:12

Attention Residuals: How Kimi Is Rethinking Transformer Depth

Every transformer you've ever used stacks layers with a dead-simple formula: take the input, add the layer's output, move on. x + layer(x). Fixed weight of 1. No questions asked. The Kimi team at Moonshot AI just published a paper that asks: what if that's been wrong the whole time? The Problem Nobody Talks About Standard residual connections accumulate layer outputs with equal weight...

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4m read

DEV Community • 2026-04-07 18:12

NexusQuant is now on PyPI, HuggingFace, and 9 awesome lists

This week we shipped everything. Here is the full list. What went out the door PyPI package — pip install nexusquant works. One line, no retraining, drop-in KV cache compression for any HuggingFace model. HuggingFace Space — live interactive demo at huggingface.co/spaces/jagmarques/nexusquant. Upload a model, pick a compression ratio, see perplexity in real time. Google Colab noteboo...

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1m read

DEV Community • 2026-04-07 18:11

Why attention-aware eviction beats random eviction (with data)

At high eviction rates, choosing which tokens to drop matters enormously. Here is what the numbers show. The experiment We ran KV cache eviction at two rates on Llama-3-8B, measuring perplexity degradation (lower is better) versus a full-cache baseline: Eviction rate Importance-based Random Advantage 70% +2.59% PPL +3.86% PPL 1.27 pp 80% +3.61% PPL +5.13% PPL 1.52 pp The ...

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2m read

Hacker News: Front Page • 2026-04-07 18:11

Assessing Claude Mythos Preview's cybersecurity capabilities

Article URL: https://red.anthropic.com/2026/mythos-preview/ Comments URL: https://news.ycombinator.com/item?id=47679155 Points: 13 # Comments: 0

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Hacker News: Front Page • 2026-04-07 18:09

Project Glasswing: Securing critical software for the AI era

Article URL: https://www.anthropic.com/glasswing Comments URL: https://news.ycombinator.com/item?id=47679121 Points: 33 # Comments: 2

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1m read

DEV Community • 2026-04-07 18:08

DebateSylhetBD

` .news-container { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.8; color: #333; max-width: 900px; margin: 0 auto; padding: 20px; background-color: #fff; } <div class="highlight"><...

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DEV Community • 2026-04-07 18:08

How to Implement Semantic Pruning in Your RAG Stack

Adding a lightweight pruning middleware to your existing retrieval flow requires just three straightforward architectural adjustments. Retrieval-Augmented Generation (RAG) systems frequently suffer from hallucination when context windows are flooded with irrelevant or noisy chunks. Intelligent context pruning solves this by applying a multi-stage filtering pipeline before the data reaches the LLM....

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1m read

DEV Community • 2026-04-07 18:06

Automate Your Garden: Smart Irrigation and Soil Sensors for 2026

I killed three basil plants and a rosemary bush before accepting that my watering instincts are terrible. Too much, too little, wrong time of day — I managed every possible failure mode. Then I installed a $35 soil sensor and a $70 smart irrigation controller. My garden hasn't looked better, and I haven't touched a watering can in eight months. Smart garden automation isn't just for tech nerds wi...

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5m read

DEV Community • 2026-04-07 18:05

OmnethDB: Building a Memory System Agents Can Actually Trust

I have been working on Vexdo for a while now, trying to build an autonomous system that can ship code with as little human intervention as possible. Some of that work ended up in earlier write-ups: I built a local AI dev pipeline that reviews its own code before opening a PR I let agents write my code. They got stuck in a loop and argued with each other I needed a workflow engine for AI agents....

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10m read