📰 Dev.to · Arthur
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⚡ AI Lessons

Dev.to · Arthur
6d ago
Gemma 4 E4B caught three planted fabrications in 50 seconds — on a laptop, no cloud
This is a submission for the Gemma 4 Challenge: Build with Gemma 4 What I...

Dev.to · Arthur
🤖 AI Agents & Automation
⚡ AI Lesson
6d ago
How I made my React site agent-ready in 100 lines
This is a submission for the Google I/O Writing Challenge A 100-line recipe for making a React site...

Dev.to · Arthur
6d ago
I built an AI PR-triage agent in 30 lines of Markdown
This is a submission for the Google I/O Writing Challenge A recipe for the AI PR-triage agent I...

Dev.to · Arthur
1w ago
Why Your Logs Are Useless Without Traces
It is three in the morning, the on-call rotation is awake, and the logs scroll past at a rate the eye cannot track. Ten thousand identical lines reading "ERROR

Dev.to · Arthur
1w ago
VS Code Now Credits Copilot on Every Commit by Default
There's a one-line pull request open against microsoft/vscode. It changes the default value of a setting called git.addAICoAuthor from "off" to "all". The PR is

Dev.to · Arthur
1w ago
Both Camps in the 'Left Behind' Argument Are Right About Each Other
There's a small, angry post on a bear blog called migraine brain that's been on Hacker News for a few days now. The whole post is three paragraphs. It opens: "'

Dev.to · Arthur
1w ago
When Your Coding Agent's String-Matcher Becomes a Billing Decision
Three threads on the front page of Hacker News in the same stretch of about ten days turned out to be different views of the same bug. Claude Code, Anthropic's

Dev.to · Arthur
1w ago
The Go Service That Slowed Down Without Errors
There is a popular phrasing in Go circles that says concurrency is almost free. The phrasing is true at the level of stack allocation and misleading at the leve

Dev.to · Arthur
1w ago
Zed IDE Is 1.0 — and the Electron Era Just Ended
Zed shipped 1.0 today. After five years of work, more than a million lines of Rust, and a public preview that hundreds of thousands of developers have been runn

Dev.to · Arthur
🔐 Cybersecurity
⚡ AI Lesson
1w ago
What 44 CVEs Tell You About Rust's Safety Boundary
In April 2026, Canonical disclosed 44 CVEs in uutils, the Rust reimplementation of GNU coreutils that has been the default in Ubuntu since 25.10. The disclosure

Dev.to · Arthur
1w ago
Ubuntu 26.04: Goodbye sudo, Hello Rust and Post-Quantum SSH
On 23 April 2026, Canonical released Ubuntu 26.04 LTS, codenamed Resolute Raccoon. The release will be supported on the standard LTS track until April 2031, and

Dev.to · Arthur
1w ago
What GenAI Actually Costs in Production
The first number anyone quotes when asked what generative AI costs is a per-token figure. It is a comfortable number — small, unambiguous, available on a vendor

Dev.to · Arthur
💻 AI-Assisted Coding
⚡ AI Lesson
2w ago
AI Gave the Solo Creator a Studio. The Studio Is Rented.
It is now possible, with the toolchain available to a single person on a normal laptop, to produce work that ten years ago would have required a team. The work

Dev.to · Arthur
⚡ AI Lesson
2w ago
JavaScript Variables
var Old way of declaring variables Scope is function-based (not limited to blocks) Can...

Dev.to · Arthur
🌐 Frontend Engineering
⚡ AI Lesson
2w ago
React Overview
React is a JavaScript library, not a framework. A library is a tool you use when needed A...

Dev.to · Arthur
2w ago
JavaScript Versions
ES5 is an older version of JavaScript. It is a standard that defines how JavaScript works. ...

Dev.to · Arthur
2w ago
Claude Found Eleven Medical Errors in One Family's Records
A software engineer with a child in a long-running diagnostic process built a homegrown medical-record service for his family, dumped years of accumulated recor

Dev.to · Arthur
3w ago
I Let an AI Agent Live on My VPS for Three Weeks
Saturday, 11pm. I'm at a friend's apartment across town and my laptop is at home. A Grafana alert lights up my phone: memory 92% on prod-1. The old me would hav

Dev.to · Arthur
3w ago
AWS Just Took Half the Internet Down Because a Building Got Too Hot
At 00:25 UTC on the morning of May 8, one availability zone of one region of one cloud provider began to fail in a structurally interesting way. The AWS Health

Dev.to · Arthur
1mo ago
Best Free JSON Formatter & Validator Online (2026)
Best Free JSON Formatter & Validator Online (2026) — Goosekit 📅 April 7, 2026 · 5 min read · ←...

Dev.to · Arthur
1mo ago
50 Best Free Online Tools in 2026 — The Ultimate Collection
50 Best Free Online Tools in 2026 — The Ultimate Collection | Goosekit 50 Best Free Online Tools in...

Dev.to · Arthur
1mo ago
What Is a Cron Job? A Beginner's Guide (Plus Free Visual Builder)
What Is a Cron Job? A Beginner's Guide (Plus Free Visual Builder) 📅 April 9, 2026 · 10 min read · ←...

Dev.to · Arthur
1mo ago
Free Online JWT Decoder — Decode & Verify Tokens In Your Browser
Free Online JWT Decoder — Decode & Verify Tokens In Your Browser 📅 April 9, 2026 · 10 min read ·...

Dev.to · Arthur
1mo ago
I built 31 free developer tools in a weekend — here's what I learned
Not an april fool! Every developer has that moment: you need to quickly format some JSON, test a...
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