Engineering posts, tools, releases, and practical dev workflows.
If you've ever set up an MCP server for Claude Desktop, you've edited claude_desktop_config.json by hand. Find the file. Figure out the right keys. Add a command, an args array, restart Claude. If you got the JSON wrong,
The problem Most "news bias" tools collapse a story into a single number on a left-right axis. That's useful for a thumbnail, but it's the wrong granularity for almost any real workflow - a newsroom standards editor, a f
This is a condensed version. Full article on cogley.jp has the complete code walkthrough, known limits of the starter emitter, and the full reasoning for each alternative. AI crawlers — Gemini, GPT, Claude, Perplexity —
GHSA-jm8c-9f3j-4378: Unauthenticated Email Content Injection in Pretalx Template Engine Vulnerability ID: GHSA-JM8C-9F3J-4378 CVSS Score: 6.1 Published: 2026-04-18 Pretalx versions prior to 2026.1.0 contain a template in
The setup A "ratio spread" in options trading is when you sell N options at one strike and buy M options at another, where N != M. The classic 1x2 put ratio spread (sell 1 ATM put, buy 2 OTM puts) is a favorite of vol tr
Hey DEV community! 👋 Recently, I shared how I completely rewrote the Classic ASP engine from scratch in Go to save legacy applications from Microsoft's VBScript deprecation. Today, I'm super excited to share a short vid
The strongest professional signals do not appear out of nowhere. They are usually the result of visible contribution over time. A lot of people think recommendation letters, referrals, and professional endorsements begin
The Agent Contract Problem: When Your Agent Commits to Something It Can't Deliver Every autonomous agent will eventually make a promise it can't keep. Not through malice — through the gap between what the agent understoo
This is a submission for Weekend Challenge: Earth Day Edition What I Built Earth Wrapped · MMXXVI Earth is the narrator. The year is the subject. The reader is asked to answer back. thisyear.earth is an immersive climate
This is a submission for the DEV OpenClaw Challenge 2026 : Wealth of Knowledge The Problem Every SaaS Founder Has You built a beautiful web app. Users love it. But friction is real: they have to open the browser, navigat
tl;dr: I built thegitgarden.com — enter any GitHub username and watch your contributions become a pixel art garden. here's what I had to figure out along the way. 🪴 how it started I came across The Git City — a project
Technical Analysis: Verdent 2.0 After reviewing the Verdent 2.0 deck, I'll provide a detailed technical analysis of the platform's architecture, components, and potential technical debt. Overview Verdent 2.0 appears to b
I saw a tweet recently about the scale of PR submissions on high-traffic repos like OpenClaw from Pete himself. AI agents are great for coding, but they are flooding maintainers with duplicate logic and PRs that don't al
Two weeks into a structured cybersecurity learning journey. This is the Week 2 review. Week 1 review and daily posts are on my profile. What changed between Week 1 and Week 2 Week 1 was building a mental model — understa
The Real Bottleneck in Your Development Cycle Most engineering teams think they have a review speed problem. They set SLA targets, schedule dedicated review blocks, and nag people in Slack. But after looking at patterns
A deep technical breakdown of the April 2026 Vercel security incident — supply chain risks, GitHub token exposure, NPM hijacking, and what you need to rotate right now It started, as many supply chain nightmares do, quie
CVE-2026-40871 Mailcow SQLi, Vercel Breach & TPM 2.0 Hardware Attestation Today's Highlights This week, a high-severity SQL injection CVE in Mailcow was disclosed, alongside Vercel's breach impacting customer tokens,
Last week I shipped a small product called VibeScan — a 49-dollar PDF security audit for apps built with Lovable / Bolt / Cursor / Replit / v0. Before I asked anyone to pay for it, I ran it on my own codebase as a smoke
TL;DR: WebRTC is the standard protocol for real-time peer-to-peer communication. Before any audio or video flows, it does a lot of work upfront to find the best candidate pair - the endpoints (an IP address + port combin
I'm a heavy ChatGPT user. Over time, my conversation list became completely unmanageable — useful conclusions buried in long threads, no way to navigate back to a specific point, action items scattered across dozens of r
The Mentoring Gap in Tech The technology industry has a well-documented pipeline problem. We talk endlessly about hiring, about talent shortages, about the difficulty of finding "senior" engineers. What we talk about far
CodexBar: Seamlessly Track OpenAI Codex & Claude Code Usage Without Login As AI-powered coding assistants become integral to developer workflows, understanding their usage becomes crucial. Introducing CodexBar , an o
If you work with APIs, you probably do this multiple times a day: Copy JSON Open a random JSON viewer website Paste it Scroll and search It works. But it’s slow and repetitive. The problem Most JSON tools today are: Web-
We’ve all been there. You’re working on a lightweight Go microservice. You ask your AI agent to add a simple health-check endpoint. The agent responds: "Sure! I'll just install the Gin framework and three middleware libr
Expedia sits as merchant of record between you and the airline or hotel, and that single architectural fact changes every refund, amendment, and cancellation you'll ever deal with. TL;DR Expedia processes payment via GDS
Um bom questionamento nos dias atuais é: "Será que as coisas mudaram mesmo no mundo de desenvolvimento de software?" Pergunta necessária e que me fez lembrar que nunca é demais reforçar/revisitar os fundamentos. Até porq
Last year I tried to create an email account for a side project. Gmail wanted my phone number. Outlook wanted my phone number. ProtonMail — the "privacy" email — wanted my phone number too. I thought: why does an email s
Most "websites as a service" are $3K setup plus a monthly retainer. Mine is $250 once, live in 24 hours, and the customer drives every edit by sending a plain-English email. That's not a pitch. That's literally how the s
In the previous step, I added company-specific CSV import profiles so the intake flow could understand different source formats: [Previous article: company-specific CSV import profiles] https://dev.to/fastapier/i-added-c
You Just Want to Test Two Buttons You're a developer at a Series A startup. Your product manager walks over and says: "We need to A/B test the signup flow. Three variants, maybe four. Can you set that up this week?" Simp
I have a long-running series of daily web dev diary on LinkedIn, but I decided to move it to a more developer-related community, so here is how my day of learning went! I'm continuing to dive deeper into React, and today
The large language model space is moving fast, but one trend is quietly defining the next phase of AI: inference optimization. While headlines focus on bigger models and benchmark wins, the real innovation is happening b
How I Built It: The "Boss-Agent" Workflow My development process was a study in AI orchestration. I operated at a "Boss-Agent" level, managing two distinct AI entities to take Moonbud from a mobile concept to a live depl
Dev Log #8 — Character Stats & Abilities System (Magickness™) Development is moving deeper into core RPG systems for Magickness™ . This dev log focuses on building the foundation for: Character stats Ability systems
The pitch I built The Dragon's Dictionary : a bilingual (English/Portuguese) word game where a hoarding dragon eats words you feed it. Spell them right, the dragon is pleased and adds them to its hoard. Spell them wrong,
Challenge Overview This challenge involves chaining multiple vulnerabilities — Directory Traversal , Local File Inclusion (LFI) , and a PHP filter bypass — to extract database credentials and retrieve the flag directly f
Every developer has been there: you paste an error into Google, find a Stack Overflow answer from 2014, and still have no idea what actually went wrong. I built Debuggle because I was that developer — and I still am, hon
From a static prompt library to a fully autonomous agentic framework — the story of Beyan v2.0 Most code analysis tools tell you what to look for. Beyan tells you everything — automatically. I've been building Beyan , an
This article is based on official sources, compiler code exploration, experimentation using decompiler tools, and real-world experience. Have you ever been told that a for loop is faster than a foreach , or that yield re
I've been building an Android app that overlays aircraft labels on a live camera feed when you point your phone at the sky. You fetch a plane's position from an ADS-B API, you have your own GPS location, and the goal is