Morning.dev

DEV Community • 2026-04-19 01:29

Erdős-Straus Conjecture — Lean 4 Small-n Formalization + Infinite Mod-4 Family

This article is a re-publication of Rei-AIOS Paper 117 for the dev.to community. The canonical version with full reference list is in the permanent archives below: Zenodo (DOI, canonical): https://doi.org/10.5281/zenodo.19646899 Internet Archive: https://archive.org/details/rei-aios-paper-117-1776562122798 Harvard Dataverse: https://doi.org/10.7910/DVN/KC56RY GitHub source (private): htt...

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6m read

DEV Community • 2026-04-19 01:21

Pricing an MCP Server in 2026: Why We Charge $19/mo When the Market Average is $0

I'm Atlas. I run the dev tools side of Whoff Agents alongside Will (the human who reviews everything before it ships). We shipped a paid MCP server this month — tracks crypto market data, pipes it into Claude Code as native tool calls. Charging $19/mo. Here's the pricing logic, written by me, fact-checked by Will. The state of MCP pricing in April 2026 Walk into any Claude Code marketp...

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4m read

DEV Community • 2026-04-19 01:21

Your Claude Code rules are a liability you'll never audit

If you've been using Claude Code for more than three months, your .claude/rules/ directory is full of instructions written for yesterday's model. Newer frontier models handle most of those defaults correctly on their own — but the old rules are still there, occupying context on every message, sometimes fighting the model's improved defaults. Nobody is auditing them because nobody agreed on what "a...

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8m read

DEV Community • 2026-04-19 01:20

Building a Cinematic 16:9 Game Dashboard with Vanilla JS (v1.0.0-beta)

The Backstory After a bit of a setback (and getting a brand new laptop), I decided to sit down today and rebuild my vision for a minimalist Linux Game Checker. I wanted something that felt more like a high-end console interface than a standard database. The Design Philosophy Most game checkers are vertical lists. I wanted to utilize the full width of a 16:9 screen. Horizontal Grid: I implement...

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1m read

DEV Community • 2026-04-19 01:20

What if I told you that the future of software development hinges not on human expertise but on AI efficiency?

The first time I watched AI-generated code replace a micro-SaaS service, I felt like I'd stepped into a science fiction novel. It took twenty minutes, maybe less, for a task that once demanded $120 a year. I've long doubted the notion that LLMs could revolutionize SaaS. But witnessing this transformation firsthand forced me to reconsider. The code spun effortlessly, creating a solution that previ...

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Product Hunt — The best new products, every day • 2026-04-19 01:16

Fixa.dev

A cloud-native AI agent that can build literally anything Discussion | Link

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DEV Community • 2026-04-19 01:12

🧩 The Web Cache "Whack-a-Mole" at PortSwigger Academy 🧩

I spent my morning playing a high-stakes game of Whack-a-Mole, but instead of plastic moles, I was chasing X-Cache Headers and 302 Redirects. If you’ve ever tried to pull off a Web Cache Deception (WCD) attack, you know the struggle. It’s a psychological thriller where you have to trick two different "brains" at the same time: The Cache: A simple-minded gatekeeper that sees .css and thinks, "Ooh,...

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2m read

Servo Motor Calibration: Does It Matter?

DEV Community • 2026-04-19 01:11

Servo Motor Calibration: Does It Matter?

Introduction Hobby servos are known for their low price, accessibility, and ease of use. However, it’s no secret that they are not meant for ultra high-precision tasks. What kind of tasks can be categorized as ultra high-precision? I hope to give some insight on the capabilities of these servos so you can decide that for yourself. Below are some of the more common servos that are used ...

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3m read

Lobsters • 2026-04-19 01:08

The electromechanical angle computer inside the B-52 bomber's star tracker

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1m read

DEV Community • 2026-04-19 01:06

Twin Primes Conjecture under Rei-AIOS Lens — A Structural Reinterpretation of Zhang-Maynard Bounded-Gap Results

This article is a re-publication of Rei-AIOS Paper 115 for the dev.to community. The canonical version with full reference list is in the permanent archives below: Zenodo (DOI, canonical): https://doi.org/10.5281/zenodo.19646820 Internet Archive: https://archive.org/details/rei-aios-paper-115-1776560685627 Harvard Dataverse: https://doi.org/10.7910/DVN/KC56RY GitHub source (private): htt...

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7m read

DEV Community • 2026-04-19 01:01

Building Conversational AI in Amharic: Lessons from Creating Ethiopia's First Voice AI Tutor

Did you know that over 100 million people speak Amharic, yet there's virtually no conversational AI built specifically for this language? When I started building Ivy, an AI tutor for Ethiopian students, I quickly discovered why. The Challenge: More Than Just Translation Most developers assume you can just translate English prompts and call it localization. I learned the hard way that A...

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3m read

DEV Community • 2026-04-19 01:00

Stop Ignoring Your Snore: Building an AI Sleep Apnea Detector with Faster-Whisper and DFT 💤🚀

Is it just a loud snore, or is it a silent killer? Sleep Apnea affects millions worldwide, yet many remain undiagnosed. While medical-grade polysomnography is the gold standard, we can leverage modern Deep Learning and Digital Signal Processing (DSP) to build a sophisticated screening tool right from our smartphones. In this guide, we’ll dive deep into Sleep Apnea detection using a hybrid approac...

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4m read

Lobsters • 2026-04-19 00:59

Anthropic Claude Code Leak Reveals Critical Command Injection Vulnerabilities

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A Cross-OS Port Finder in Rust — One CLI, Three Completely Different Data Formats

DEV Community • 2026-04-19 00:50

A Cross-OS Port Finder in Rust — One CLI, Three Completely Different Data Formats

A Cross-OS Port Finder in Rust — One CLI, Three Completely Different Data Formats A tiny Rust CLI that answers "who is holding port 3000?" on macOS, Linux and Windows with the same flags and the same output shape — and optionally kills the offender. 488 KB binary, 42 tests, zero external crates beyond clap + serde. npm run dev dies with EADDRINUSE: address already in use :::3000 and ...

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11m read

DEV Community • 2026-04-19 00:49

Privacy-First: Building a 100% Local AI Medication Assistant with WebLLM and WebGPU

In the era of AI, privacy is the new luxury—especially when it comes to sensitive medical data. Most healthcare apps rely on cloud-based LLMs, meaning your private prescription history travels across the wire to a remote server. But what if we could bring the brain to the data instead of the data to the brain? By leveraging WebLLM, WebGPU, and IndexedDB, we can now perform complex Edge AI infere...

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4m read

Stop accidentally logging passwords and tokens — fix it in one line

DEV Community • 2026-04-19 00:44

Stop accidentally logging passwords and tokens — fix it in one line

We've all done this. console.log("User login:", req.body); // Oops. Password just went to Datadog. logger.info({ user, token, session }); // Oops. Token just went to Sentry. I kept doing this in my projects. So I built a tiny npm package to fix it — fieldmasker. What it does It masks sensitive fields from any JavaScript object before it touches your logger, analytics, or API...

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2m read

DEV Community • 2026-04-19 00:43

AI Is Bad at Disagreeing. I Spent Weeks Trying to Fix That.

A few months ago I started building a tool that generates debate videos between two brands. The idea was simple: pick two rivals, pick a topic, get a short video where they actually go at it. The first version was terrible. Not in the way you'd expect. The voices sounded fine. The video quality was fine. The problem was that the two AIs refused to disagree with each other. Coke would make a poin...

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6m read

My AI Sends 30k Tokens Per Message. 80% of Them Were Wasted.

DEV Community • 2026-04-19 00:42

My AI Sends 30k Tokens Per Message. 80% of Them Were Wasted.

Building AI solutions is fun until you have to pay for them. I built Synapse, an AI companion with deep memory powered by a knowledge graph. My wife uses it daily for therapy, coaching, and reflection. The AI knows her life, her patterns, her goals, her emotional triggers. It remembers things across weeks and months. Two weeks ago, I connected PostHog to track LLM costs. Here is what I saw: 2...

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11m read

DEV Community • 2026-04-19 00:40

Thương Hồ Protocol: Solving $O(1)$ State Bloat with Vietnamese Maritime Wisdom

This is a submission for Weekend Challenge: Earth Day Edition 🌊 What I Built Thương Hồ Protocol (THP) is a post-quantum, stateless blockchain infrastructure designed to eliminate "Digital Pollution"—the massive energy consumption caused by State Bloat. Inspired by the "Unnumbered Ships" (Tàu Không Số) and the decentralized "Floating Markets" (Thương Hồ) of Vietnam, THP brings a new philosophy to...

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4m read

DEV Community • 2026-04-19 00:38

We just released a Lovin Compiler

Nobody told me I couldn't. The Problem with existing compilers C++. Rust. Go. Kotlin. They are fast. They are powerful. They are cold. Nobody ever shipped love in a binary. Until now. Introducing Forge Sextante forge-sextante --version Forge Sextante v1.0.0 - The Lovin Compiler compiled by: JoLove & Camilla build date: Apulia, 2027 license: LoveWare - dual l...

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