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Optimizing Cement Kiln Heat Consumption: A Process Engineer’s Python Approach

For over three decades, my world revolved around the deafening roar of industrial fans, the intense glow of the rotary kiln, and the constant pursuit of the perfect clinker. In those traditional days

dev.to May 20, 2026 Read more →

How I Turned 6 Cognitive Science Principles Into an AI Agent That Builds Obsidian Vaults

In 30 years, computers got 100x faster. Our learning method stayed the same: read → highlight → re-read → forget → re-read again. I shared with EMBA students who have to digest hundreds of pages of m

dev.to May 20, 2026 Read more →

Your AI database agent needs better errors than “tool failed”

“Tool failed” is not an error message. It is a debugging tax. When an AI agent queries a database through MCP, failures need to be structured enough for the agent to recover and specific enough for

dev.to May 20, 2026 Read more →

Your MCP database server should not use an admin key

The fastest way to make an AI database agent dangerous is to connect it with the same credential a senior engineer uses in production. The model does not need your admin key. It needs a narrow, expl

dev.to May 20, 2026 Read more →

CDN Cache Invalidation: Why Deleted URLs Still Redirect (And How We Fixed It)

This article was originally published on Jo4 Blog. You deleted the URL. Redis says it's gone. The database confirms it. But users click the link and still get redirected to the destination. cf-cach

dev.to May 20, 2026 Read more →

AI coding agents need browser evidence, not just code inspection

The strongest signal in today's Doramagic GitHub metrics was not an abstract agent framework. It was a practical browser-verification pack: https://github.com/tangweigang-jpg/doramagic-chrome-devtool

dev.to May 20, 2026 Read more →

A YAML-Driven Multi-Channel RestClient — The Story of Building mido-client

I built a Spring Boot 3.2+ open-source library that lets you declare and manage external API channels entirely from YAML. It started in the travel industry The thing is, every OTA has di

dev.to May 20, 2026 Read more →

Synthesio charges $36K+/year for Chinese platform coverage. I built one for $0.045/mention.

Synthesio sells Chinese platform coverage for $36K+/year. Brandwatch and Meltwater sit in roughly the same $24K-80K/year band. I built an Apify Actor that does the equivalent core job — Weibo, RedNote

dev.to May 20, 2026 Read more →

Mini Program Plug-in Architecture: From Theory to Practice

1. What Is a Mini Program Plug-in? A mini program plug-in is a reusable functional module that can be integrated into any mini program. Think of it as a "component-level micro-application"

dev.to May 20, 2026 Read more →

We built a 4-model Council to certify AI agents — every decision is in git

TL;DR — AI agents now do real work, but there is no shared way to say what an agent is, what it is good at, and how that claim was checked. So we built one: an independent certification body where eve

dev.to May 20, 2026 Read more →

How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo Router

Modern large-scale mobile apps demand maintainable architecture, scalable navigation, robust state management, and production-grade performance. Expo Router makes this achievable in React Native with

dev.to May 20, 2026 Read more →

Building KernelMind Part 3: Evaluation, Retrieval Ablations, RAGAS, and Turning The Project Into Something Measurable

By this point, KernelMind had already evolved far beyond the original “embeddings over code” idea. The system now had: AST-aware chunking fully qualified symbol identities graph-aware retrieval hyb

dev.to May 20, 2026 Read more →

How to remotely iterate & deploy your sideloaded iOS-apps over tailnet

Sideloading an iPhone over Tailscale from anywhere, no USB, Touch grass while CI/CD on iOS. TL;DR iOS 17+ moved iPhone development tooling onto a stack — CoreDevice + RemoteXPC +

dev.to May 19, 2026 Read more →

AI is moving from demo to infrastructure, and today made that obvious

Today's AI news has a pattern to it. The big stories are not really about a clever chatbot trick or another model benchmark. They are about power, infrastructure, lawsuits, labor, and trust. That mig

dev.to May 19, 2026 Read more →

Kubernetes Tools

Every Kubernetes Tool Explained In One Post (And Why They Exist) The Kubernetes Ecosystem Has a Story. Every tool exists because Kubernetes alone wasn’t enough. You run everything with kubectl. Get p

dev.to May 19, 2026 Read more →

Python functools: lru_cache, partial, reduce, and wraps

The functools module is one of Python's most practical standard-library gems. It ships a small set of higher-order function utilities — tools that operate on or return other functions — that eliminate

dev.to May 19, 2026 Read more →

Every AI database answer needs a source trail

An AI answer without provenance is just a confident paragraph. That may be fine for brainstorming. It is not enough for database answers that drive product, finance, support, or operations decisions

dev.to May 19, 2026 Read more →

The Smartest Founders I Know Aren’t Building Unicorns

Everyone wants to build a unicorn. A billion-dollar valuation. A massive funding round. A glamorous TechCrunch headline. An office somewhere in San Francisco with glass walls and free coffee. But af

dev.to May 19, 2026 Read more →

lysofdev-ailog: A git log for Why Your AI Agent Did What It Did

At a glance What it is A file-based work log with semantic search, designed for AI coding agents to record and retrieve their own reasoning. Package lysofdev-ailog on PyPI · CLI

dev.to May 19, 2026 Read more →

XCrawl vs Puppeteer vs Playwright: Which Web Scraping Tool Saves You More Time in 2026?

The Web Scraping Toolkit Spectrum Let's be real: there are dozens of ways to scrape the web. From raw curl to full-blow browser automation frameworks. But when it comes to JavaScript-render

dev.to May 19, 2026 Read more →
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