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Articles 161,071Blog Posts 155,570Tech Tutorials 42,485Research Papers 31,730News 21,029
⚡ AI Lessons
Dev.to · Mark
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Is npx @apexacc/cli safe? A technical breakdown of Apex Copilot
Web3 founders are understandably cautious about running CLI tools that download binaries. So let's...
Dev.to · Mark
🌐 Frontend Engineering
⚡ AI Lesson
3d ago
Next.js 15 Dark Mode Without the Flash: From Hydration Error to Zero-Flicker
I built a 100+ tool website with Next.js 15 on Cloudflare Pages. I thought implementing dark mode...
Dev.to · Mark
3d ago
I Built a Free Tool to Grab Any YouTube Video's Cover Photo in Full HD
Hey dev.to 👋 A while ago I needed to download a YouTube video's cover image for a presentation, and...
Dev.to · Mark
5d ago
I vibe-coded a self-hosted tracker for my rowing machine, then learned the hard way what "safe to make public" actually means
I row on a Concept2 RowErg most mornings, and the Concept2 Logbook logs a workout fine but doesn't...
Dev.to · Mark
🌐 Frontend Engineering
⚡ AI Lesson
2w ago
Cloudflare Cache Hit Rate: 7% to 90%
Cloudflare Pages Cache Hit Rate at 7%? I Brought It to 90% with 3 Rules After deploying...
Dev.to · Mark
📣 Digital Marketing & Growth
⚡ AI Lesson
3w ago
Free Website Performance Monitoring: PageSpeed CI + CrUX + GitHub Actions
Commercial performance monitoring starts at $29-99/month. With Google PageSpeed API + GitHub...
Dev.to · Mark
🔧 Backend Engineering
⚡ AI Lesson
4w ago
Java Concurrency Programming Learning Roadmap: Understanding Threads Through Problems
Many developers start learning concurrency by memorizing APIs directly. For example: How to create...
Dev.to · Mark
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Client-Side Encryption with Web Crypto API
Building a pure-frontend encryption toolset with no backend dependency. Web Crypto API is powerful —...
Dev.to · Mark
🌐 Frontend Engineering
⚡ AI Lesson
1mo ago
Sentry Source Map Upload Debugging: From 0% Adoption to Full Resolution
After integrating Sentry error monitoring, Release Adoption stayed at 0%, and Source Maps never...
Dev.to · Mark
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Modeling the Expected Value of a Sealed Card Box (and Where the Number Quietly Lies)
A friend messaged me a photo of a sealed booster box last month with one question: "worth it?" He'd...
Dev.to · Mark
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Forecasting from a Government PDF: What I Learned Modeling the Visa Bulletin
Every month the U.S. State Department publishes the Visa Bulletin. If you have never had to read one,...
Dev.to · Mark
⚡ Algorithms & Data Structures
⚡ AI Lesson
1mo ago
The Minecraft anvil is a tree-cost optimization problem in disguise
I fell down this rabbit hole because of a small, annoying moment in a survival game. I had a diamond...
Dev.to · Mark
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
The hardest part of a pre-release game tracker isn't the UI, it's the provenance field
I started sketching a small reference page for a game that hasn't launched yet, and the first schema...
Dev.to · Mark
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
Cloudflare Pages Blank Page? The index.txt Trap with Next.js Static Export
After deployment, the site occasionally showed a blank screen on the homepage — refreshing fixed...
Dev.to · Mark
🌐 Frontend Engineering
⚡ AI Lesson
2mo ago
The third enum variant that stopped my tax calculator from lying
Modeling 51 US tax jurisdictions in TypeScript, and why a "we don't know yet" state mattered more than the brackets themselves.
Dev.to · Mark
💰 FinTech & AI for Finance Professionals
⚡ AI Lesson
2mo ago
What I learned building an after-tax raise calculator
A 5% raise isn't 5% in your bank account, and it isn't 5% in your grocery cart either. Here's the small tax engine I wrote to keep those numbers honest.
Dev.to · Mark
🌐 Frontend Engineering
⚡ AI Lesson
2mo ago
React 19 Hydration Mismatch in Static Export
📚 This is Part 3 of the UtlKit Tech Series — Part 2 covers the architecture & trade-offs → Read...
Dev.to · Mark
☁️ DevOps & Cloud
⚡ AI Lesson
2mo ago
Generating valid .ics calendar feeds at build time
A few weeks ago I shipped a feature I'd been putting off because it felt like it needed a backend:...
Dev.to · Mark
💻 AI-Assisted Coding
⚡ AI Lesson
2mo ago
How I Built an AI-Powered Adult (Porn) Content Scanner for Windows (And the Engineering Challenges I Didn't Expect)
Building an AI-Powered Content Scanner for Windows: Performance, Multithreading and GPU...
Dev.to · Mark
🌐 Frontend Engineering
2mo ago
150+ Tools with Only 2 Layout Components: UtlKit Architecture Design
150+ Tools with Only 2 Layout Components: UtlKit Architecture Design UtlKit Series Part...
Dev.to · Mark
🌐 Frontend Engineering
⚡ AI Lesson
2mo ago
I Spent 2 Months Building a 150+ Tool Website with $0 Server Cost
📚 This is Part 1 (Opening) of the UtlKit Tech Series — Next: [Architecture & Trade-offs...
Dev.to · Mark
📰 AI News & Updates
2mo ago
AI Hallucinations Are Not a Bug. They Are the Architecture. Here Is How I Deal With Them Now.
I do a lot of research. Legal documents, technical specs, academic papers, regulatory filings....
Dev.to · Mark
⚡ Algorithms & Data Structures
⚡ AI Lesson
2mo ago
Encoding FIFA’s 495 third-place scenarios for the 2026 World Cup
I expected the 2026 World Cup bracket to be a sorting problem. It turned out to be a sorting problem...
Dev.to · Mark
🔐 Cybersecurity
⚡ AI Lesson
2mo ago
How I built a zero-knowledge secret sharing tool
I work with developers. That means at some point, someone needs to share a database password or API...
DeepCamp AI