Dmitry Sheiko

A web developer #Reactjs #nodejs #PHP, blogger #opensource contributor

[Dmitry Sheiko @sheiko]

Built sitecheckup: a CLI that crawls your live site with a real browser and checks links, images, fonts, OG tags, canonical URLs, whatever quietly breaks after deploy.

Reports are JSON, built for AI agents to read and fix issues directly.

https://t.co/tJMgwl2vDw

[Dmitry Sheiko @sheiko]

What a daring idea: using AI to write Git commit messages.

Git comments like: fix, final fix, final final fix

AI may help us explain what we actually changed.

https://t.co/SfplgcDAI1

#git #programming #AI #softwaredevelopment

[Dmitry Sheiko @sheiko]

Testing sign-up flows that send confirmation emails is annoying until you find https://t.co/8o81d6xRDU. Pair it with Playwright's built-in request context and you get a real end-to-end test with no mocking.
https://t.co/BHa9rC108Q
#Playwright #testing

[Dmitry Sheiko @sheiko]

Just published a React design patterns reference.

Six patterns with code, diagrams, and analogies:

Composition
Custom Hooks
Provider / Context
Compound Components
Server - Client Separation
Suspense
https://t.co/p6TmMnNGnf #React #JavaScript #NextJS

[Dmitry Sheiko @sheiko]

If you're working with AI-assisted development, check out Frontend Checklist: https://t.co/PfrcKHw6dM

It's a practical checklist for modern frontend projects covering performance, accessibility, SEO, security, code quality, and deployment best practices.

[Dmitry Sheiko @sheiko]

Apparently, after thirty years in software development, you're expected to leave some written evidence that you were actually there.

So I put together a short retrospective, from Soviet mainframes to the AI era:

https://t.co/HGxvMRH6kF

[Dmitry Sheiko @sheiko]

Put together a reference for all 23 GoF design patterns + SOLID, with examples in JS, Python, and Rust. Where modern syntax makes a pattern redundant, shows the modern way instead. Open source.

https://t.co/KhwxPUZFHj

#webdev #javascript #rust #python

[Dmitry Sheiko @sheiko]

While reading about Agentic UX, I came across this:

Developers are starting to ask:
"How will an AI agent use my website?" instead of only "How will a human use my website?"

We are already there.

[Dmitry Sheiko @sheiko]

Just shipped wwwgrep — a CLI tool that crawls a live website and searches page content like grep. Supports regex, depth limits, concurrency, and works on JS-rendered pages.

wwwgrep https://t.co/J8KwN1qEjY "keyword"
https://t.co/RbmEll8FhK

#opensource #nodejs #cli #webdev

[Dmitry Sheiko @sheiko]

"Grill Me" seems to have gone viral.

Instead of giving answers, the AI interviews you until you reach a shared understanding of the problem. It uncovers hidden assumptions, reveals missing requirements, and helps avoid costly mistakes.

https://t.co/6tIS1X0Qak

[Dmitry Sheiko @sheiko]

A Claude Code tip that took me a while to learn:

The biggest gains don't come from better prompts.

Set up CLAUDE.md, Skills, review rules, custom agents, and permission controls.

Claude starts working more like a teammate than a chatbot.

https://t.co/Sc64FBoz7v

[Dmitry Sheiko @sheiko]

I guess I’m getting old—and a bit nostalgic. This retro gem (https://t.co/xNrkzNKzwa) brought back memories of MS Paint and a time when I was younger, full of energy, ideas, and big aspirations.

[Dmitry Sheiko @sheiko]

I just published a new article. It covers architecture, performance, and system design topics every modern web developer should understand — from Clean Code and Hexagonal Architecture to caching, rendering strategies, and the Node.js event loop.

🔗 https://t.co/pMACRTj6YX

[Dmitry Sheiko @sheiko]

Wow, they actually gave a little tour of our current office - and honestly, I think it’s exactly what any developer could dream of.

https://t.co/4360YJUioy

[Dmitry Sheiko @sheiko]

Just found this: https://t.co/cAM3Ixzb6n

Windows 3.11 running inside your browser — pure nostalgia.

14-inch monitor, Pentium processor, Energy BIOS screens, DOS games, and basically an empty internet… welcome to the times when we were quite happy with all that.

[Dmitry Sheiko @sheiko]

#NextJS #React Just published a practical guide on adding Web Push notifications to a Next.js 16 app.
No third-party services — just a clean implementation.

If you're building with Next.js and want real-time browser notifications, this might help
https://t.co/PLHzyaDJ55

[Dmitry Sheiko @sheiko]

Just discovered https://t.co/cvlV1ZQUrh — a framework for building native Linux desktop applications using React and GTK4. It provides direct GTK4 bindings via Rust/Neon, delivering true native performance while offering access to the full GTK4 API.

[Dmitry Sheiko @sheiko]

When it comes to discovering memory leaks, it turns out that Meta has designed a tool for this purpose: https://t.co/XcRwR4gDOi. It allows you to write scenarios to detect memory leaks in web apps. These scenarios can be integrated into test frameworks and even included in CI.

[Dmitry Sheiko @sheiko]

#typescript
Found this really nice, concise TypeScript book — more like a well-structured conspect than a long read. Great for quick refresh or filling gaps:
https://t.co/RlJJGViryq

[Dmitry Sheiko @sheiko]

#bash Fast and minimal git prompt script for .bashrc

git_branch() {
git branch 2>/dev/null | grep '^*' | colrm 1 2
}

# Set PS1 with git branch (colored)
PS1='[\[\e[1;31m\]\u\[\e[m\]:\[\e[1;32m\]\W\[\e[m\]]\[\e[1;33m\]$(git_branch | sed "s/.*/ (&)/")\[\e[m\]\$ '