DEV Community • 2026-04-11 16:47

Logistic Regression on MNIST (0 vs 1) in PHP: A Simple Example

Want to get a real feel for machine learning in practice? Here’s a simple but powerful exercise: classify thousands of digits (0 vs 1) from the MNIST dataset (12,666 train samples and 2,116 test samples) using logistic regression — trained with gradient descent. Just 5 epochs. What you’ll get out of it: see how a model actually works with image data understand where linear models start to brea...

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Hacker News: Front Page • 2026-04-11 16:47

Small models also found the vulnerabilities that Mythos found

Article URL: https://aisle.com/blog/ai-cybersecurity-after-mythos-the-jagged-frontier Comments URL: https://news.ycombinator.com/item?id=47732020 Points: 8 # Comments: 0

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DEV Community • 2026-04-11 16:46

Title: Beyond Auto-scaling: Engineering Cost-Efficiency into Cloud-Native Architectures

published: João Vitor Nascimento de mendonça description: How to move from "scaling at all costs" to "resource stewardship" using VPA, Graviton, and Spot Instances. tags: aws, kubernetes, finops, architecture cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/example-cloud-cost.png series: Modern Infrastructure Series Part 2: The Post BodyPaste this into the main con...

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DEV Community • 2026-04-11 16:46

Stop Ngrok Tunnels: Enterprise Security Practices for Your Homelab

Ngrok is one of those tools that's dangerously easy to love. Spin up a tunnel, get a public URL, share your local service with the world. But that convenience hides real risk — especially if you're running a homelab where tunnels tend to linger longer than they should. I've been running a homelab for years, and I'll admit: I've left Ngrok tunnels running overnight more times than I'd like. Each o...

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DEV Community • 2026-04-11 16:44

New Build Tool for C/C++

I've been frustrated by the same problem every C/C++ developer knows too well: you have a great idea, you sit down to code, but end up wrestling with CMake. 😤 So I built something to solve it. 🔧 🚀 Craft - a lightweight build tool for C and C++. Think Cargo, but for C/C++. You describe your project in a simple craft.toml file and Craft handles the rest. No more manual CMakeLists.txt. No more s...

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Hacker News: Front Page • 2026-04-11 16:43

Phone Trips

Article URL: http://www.wideweb.com/phonetrips/ Comments URL: https://news.ycombinator.com/item?id=47731998 Points: 3 # Comments: 0

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Hacker News: Front Page • 2026-04-11 16:38

The disturbing white paper Red Hat is trying to erase from the internet

Article URL: https://www.osnews.com/story/144776/the-disturbing-white-paper-red-hat-is-trying-to-erase-from-the-internet/ Comments URL: https://news.ycombinator.com/item?id=47731960 Points: 11 # Comments: 0

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DEV Community • 2026-04-11 16:36

SSL Certificate Validity Is Dropping to 200 Days in 2026

The old "renew it once a year and forget it" model for public TLS certificates is going away. On April 11, 2025, the CA/Browser Forum approved Ballot SC-081v3. The first deadline is March 15, 2026, when the maximum validity of publicly trusted TLS certificates drops from 398 days to 200 days. Then it drops again to 100 days in 2027 and 47 days in 2029. The new timeline Until March 15...

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Hacker News • 2026-04-11 16:33

Show HN: OpenDescent, decentralised encrypted messenger, no servers, no accounts

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DEV Community • 2026-04-11 16:30

Quarterly Check In - 2026, Q1

Over the last quarter, I have found it more difficult to maintain the level of focus and consistency I expect from myself. There is no single cause. It is a combination of seasonal factors, increased responsibilities, and the natural accumulation of competing priorities. Winter tends to have a noticeable impact. Shorter days and reduced sunlight affect energy levels more than I would like to admi...

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DEV Community • 2026-04-11 16:30

Theoretical Foundations of Deep Learning (Why Neural Networks Actually Work)

Deep learning and neural networks work because of entropy, KL divergence, probability distributions, and optimization. This guide explains the theoretical foundations behind how models learn from data in a structured way. If you’ve ever wondered why deep learning actually works, this article breaks it down clearly. 🔗 Original Article Cross-posted from Zeromath. Original article: htt...

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DEV Community • 2026-04-11 16:30

Twill.ai y el sueño de 'delegá a un agente, recibí un PR': yo ya lo viví y fue más raro de lo que parece

Eran las 11:47pm y tenía un PR abierto de un agente esperando merge. El pipeline estaba verde. Los tests pasaban. El código se veía prolijo. Y yo no tenía la menor idea de por qué había elegido esa implementación específica. No estaba nervioso por el código. Estaba nervioso porque en diez minutos iba a apretar el botón de merge y el responsable técnico de ese PR iba a ser yo — alguien que no habí...

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DEV Community • 2026-04-11 16:30

I built the first Android publishing CLI with Managed Google Play support

If you ship a private Android app to enterprise customers, you've probably noticed something: No publishing CLI supports it. Fastlane supply, the most popular Android publishing tool, wraps the standard Google Play Publisher API. Gradle Play Publisher does the same. They both handle public Play Store releases well (upload AAB, promote tracks, manage rollouts), but neither touches the Play Custom...

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🚨 Understanding Threat Intelligence: From Raw Data to Meaningful Insights
DEV Community • 2026-04-11 16:29

🚨 Understanding Threat Intelligence: From Raw Data to Meaningful Insights

Recently, I tried to understand how cybersecurity teams actually figure out if something is truly dangerous on the internet — and not just rely on one source of information. What I Built To explore this, I built a small system where I collected suspicious data (like IP addresses, urls,domains,etc.) from multiple platforms such as: VirusTotal AbuseIPDB AlienVault OTX Each of these p...

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DEV Community • 2026-04-11 16:27

Happy April Fool ...

You’ll Think This Challenge Is Easy… It’s Not This is a submission for the DEV April Fools Challenge What I Built I built a small interactive web challenge that looks extremely simple at first glance. There’s no clutter. No complex UI. Just one goal. Most users think they’ve figured it out within seconds. They haven’t. This project is designed to: Challenge instinctive...

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DEV Community • 2026-04-11 16:26

Jagadeesh Bellana

🚀 My Portfolio -> https://www.jaggu.me/ A stunning, modern personal portfolio website built with Next.js 16, Tailwind CSS 4, Prisma, and Framer Motion. This project features a clean, responsive design with smooth animations and a robust admin dashboard for managing projects and messages. Portfolio Banner ✨ Key Features 🌊 Fluid Animations: Leverages Framer Motion for premium, high-performance ...

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I watched Shai Hulud steal credentials from teams running npm audit. Here's the gap nobody talks about.
DEV Community • 2026-04-11 16:25

I watched Shai Hulud steal credentials from teams running npm audit. Here's the gap nobody talks about.

September 2025. PostHog, Zapier, Postman, ENS Domains. Over 500 packages compromised. Credentials pulled from developer machines and CI agents. When the malware found an npm token, it automatically published backdoored versions of every package that token had access to. No human needed after the first infection. Every team I watched get hit was running npm audit. Some had Snyk. One had Dependabot...

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The Debugging Mindset: Thinking Like a Systems Detective
DEV Community • 2026-04-11 16:24

The Debugging Mindset: Thinking Like a Systems Detective

Every developer writes code. But the ones who grow fastest aren’t just writing features—they’re learning how to debug reality. Debugging is where theory meets the real world. It’s messy, unpredictable, and often humbling. But it’s also where some of the most valuable engineering skills are forged. 1. Assume Nothing, Verify Everything One of the biggest traps in development is assumption-based...

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Hacker News: Front Page • 2026-04-11 16:24

Keeping a Postgres Queue Healthy

Article URL: https://planetscale.com/blog/keeping-a-postgres-queue-healthy Comments URL: https://news.ycombinator.com/item?id=47731838 Points: 5 # Comments: 0

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DEV Community • 2026-04-11 16:23

Querying Your Test Results with OpenSearch MCP

Ask your OpenSearch data questions in plain English using any MCP-compatible AI assistant. This works with any test framework — Robot Framework is used here because that is where the data already lives. Introduction In the previous part of this series, every Robot Framework test result was streamed into OpenSearch the moment it completed — failures visible in a live dashboar...

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