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A classic trumpet is best for coding
🎺
A classic trumpet is best for coding
546 followers · 144 following

Achievements

Achievement: Pair ExtraordinaireAchievement: QuickdrawAchievement: YOLOAchievement: Arctic Code Vault ContributorAchievement: Public SponsorAchievement: Starstruckx2Achievement: Pull Sharkx3

Achievements

Achievement: Pair ExtraordinaireAchievement: QuickdrawAchievement: YOLOAchievement: Arctic Code Vault ContributorAchievement: Public SponsorAchievement: Starstruckx2Achievement: Pull Sharkx3

Highlights

  • Pro

Organizations

@javascript-ninjas @edukaton @webowe-pogawedki

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piecioshka/README.md

Piotr Kowalski — @piecioshka

👋 Hi! I'm a developer based in Warsaw, Poland 🇵🇱 with 15+ years of professional experience.
I build code that's easy to maintain, extend, and trust. I love Open Source 💚 — check out my utility projects on GitHub :octocat: and use them in your own work.

🤔 Why work with me?

🛀 Clean Code — your team can read and modify it without fear
🔧 Tests — you ship with confidence, not prayers
⚡ Performance — your users don't wait
🔐 Security — your data stays safe
📔 Design Patterns — your architecture scales

🎬 Videos

Want to understand Git internals in under 20 minutes? Start here:

More talks — practical knowledge, no fluff (all in Polish 🇵🇱)

🎓 Trainer

Want your team to write code they're proud of 6 months later?
I run hands-on trainings in Git, JavaScript, TypeScript, React, Angular, and Node.js — trusted by Altkom, NobleProg, Vavatech, and more.

🌍 Beyond code

🤝 Community

I helped grow the Polish dev community through DevAdventCalendar, WarsawJS, Edukaton, and ConFrontJS — now channeling that energy into trainings and open source.

📬 Let's connect

Prefer English? Find me on YouTube • X • LinkedIn 🇺🇸
Wolisz po polsku? Zapraszam na YouTube • Facebook • Blog 🇵🇱

Pinned Loading

  1. dotfiles dotfiles Public

    My public dotfiles.

    Shell 5

  2. simple-data-table simple-data-table Public

    🔨 Lightweight and simple data table with no dependencies

    JavaScript 169 11

  3. super-event-emitter super-event-emitter Public

    🔨 Lightweight and simple interpretation of popular event management / aggregation

    TypeScript 23 4

  4. react-bounty react-bounty Public

    🔨 Bounty React Component

    JavaScript 13 2

  5. vanilla.js vanilla.js Public

    🌴 The most famous JavaScript framework.

    74 10

  6. boilerplate-webpack-babel boilerplate-webpack-babel Public

    🍴 Starter with Webpack & Babel.js

    JavaScript 47 12

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