Jacek Zborowski

You asked, we delivered! 👉 New tutorial is live: https://lnkd.in/dexcnpGc After our #Kafka explainer video, many of you were asking for a hands-on demo. Here's the thing about learning tech - understanding the theory is just step one. But until you've actually written the code, started the services, and seen the data flow... it doesn't really click. So we built a hands-on follow-up: 1-𝗵𝗼𝘂𝗿 𝗞𝗮𝗳𝗸𝗮 𝗰𝗿𝗮𝘀𝗵 𝗰𝗼𝘂𝗿𝘀𝗲 with Python and Docker. Because there's a huge difference between knowing about message queues and actually building with them. 𝗧𝗢𝗣𝗜𝗖𝗦 𝗖𝗢𝗩𝗘𝗥𝗘𝗗 First you'll understand conceptually: ↳ WHAT Kafka is and WHY Kafka was developed? What PROBLEM does it solve? ↳ How Kafka achieves scalable performance? ↳ Kafka vs Other Message Brokers? Then get hands-on with a simple but realistic demo project: ↳ Run Kafka Broker with Docker Compose ↳ Write a Kafka Producer ↳ Write a Kafka Consumer ↳ Using Kafka CLI - Kafka Commands ↳ Troubleshooting tips It is a step by step guide, to make sure you can follow smoothly and understand every step clearly. Ready to go from theory to practice? 👉 Check it out here and let me know if it was helpful: https://lnkd.in/dexcnpGc

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I tried Uno Platform to build a quick tool for myself… and didn’t expect this. Turns out, building a real cross-platform app - desktop, web, and mobile - is way easier than I thought. I always thought Uno Platform was mainly for mobile - kind of like a Xamarin clone. But I was wrong. Uno Platform is a full cross-platform framework for: • Web (via WebAssembly) • Windows (WinAppSDK) • macOS, Linux • iOS & Android And it uses C# and XAML - perfect for .NET developers. I built a tiny Weather app and designed it live with Uno Platform Studio - no rebuilds. Uno Platform Studio (paid) is a companion that adds: • Hot Design (live visual designer on your running app) + Hot Reload. • Edits apply instantly and write back to your XAML. • With Hot Design you can change spacing, tweak colors, switch device sizes, and toggle light/dark while the app is running. • Real data, real states - what you see is what you ship. Under the hood it’s Uno Platform (open source). Uno Platform let me write one app in C# and XAML and run it: 1. As a native desktop app (WinUI) 2. As a mobile app on Android and iOS 3. As a web app (thanks to WebAssembly) And I didn’t need to change the UI code for each platform. Even better? The open-source tooling feels very familiar if you've ever used WPF or MAUI. Setup: uno-check --fix → wizard → run. Familiar MVVM, DI, HttpClient. In the slides below you can see how to install Uno Platform and configure your project. • Check Uno Platform here: https://lnkd.in/dPihsfzu • Check Uno Platform Studio here: https://lnkd.in/dnXPmUAu What would you build if you could design live and ship everywhere?

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🤔 Do you want to know more about monorepos? 🤔 Wondering what their benefits and pitfalls are? Want to understand the tool landscape and the companies and business models behind them? Here is my newest article - "An Introduction to Frontend Monorepos" It is comprehensive and a 20 minute read, covering the benefits and pitfalls, and compares PNPM Workspaces, Nx, Turborepo, Bazel, Buck2. https://lnkd.in/d3yqWRWe #monorepo #nx #turborepo #pnpm

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A while ago, I posted about a Performance Testing workshop I conducted. Back then, I didn’t get the chance to share the presentation itself. This is the previous post if you want to take a look 👇 https://lnkd.in/dTHe3Wd8 Now I’ve enhanced the presentation, and I’m happy to share it with you all 🤝 because I believe that knowledge grows when shared. In this workshop, I walked through: 🔹 Why performance testing is critical in real projects. 🔹 Performance Testing Types. 🔹 Key KPIs every tester should understand 🔹 Common Performance Bottlenecks. 🔹 Testing Process (PTLC) 🔹 Tools and approaches to get started 🔹 Frequently Asked Interview Questions. 🔹 JMeter GUI and CMD commands. 🔹 A Roadmap to dive more into Performance Testing. I know how challenging it can feel when you’re just starting, so I hope this presentation makes the path a little clearer. Resources that helped me prepare this workshop: 🔗 https://lnkd.in/dyXGWpYn 🔗 https://lnkd.in/dAd_BT-t 🔗 https://lnkd.in/dQM4zxJD 🔗 https://lnkd.in/diqpHJ9h Thanks to Mr.Raghav Pal and Mr.Rahul Shetty (Venkatesh) for facilitating these concepts 👏 💬 If you check it out and have any questions, feel free to reach out. I’ll be glad to help as much as I can. #SoftwareTesting #PerformanceTesting #KnowledgeSharing #TestingCommunity #LearningJourney #Workshop #Testing #PTLC #KPIs #Performance #Bottlenecks #Presentation

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🚀 Freelance vs Full-time Software Development in Germany - When to choose what In Germany's technology market, both freelance developers and permanent employees play important roles. The right choice depends on your business needs. ✅ Freelancers are the better choice when ⚡You need very specific expertise for a clearly defined project or technology stack ⚡Speed is important, since freelancers can usually start quickly without long hiring processes ⚡Your workload is project-based and does not justify a permanent hire ⚡You want flexibility to scale teams up or down without long-term obligations 👩‍💻 Permanent employees are the better choice when ⚡You want to build long-term product knowledge and strong company culture ⚡Continuity in core systems is essential ⚡The role requires deep integration with the business and its processes In short: 👉 Choose a freelancer for focus, speed, and flexibility 👉 Choose a permanent employee for stability, culture, and continuity The value lies in knowing which model fits your current challenge. #Freelance #SoftwareDevelopment #TechHiring #ITFreelance

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When I was a software developer and team manager, I had the chance to apply agile development not as theory, but as daily practice. Over time, I saw how agile is often reduced to ceremonies and tools. Yet what truly makes the difference is not the framework—it is the mindset. We discovered that practices like test-first, collaborative coding, and iterative feedback cycles only work when supported by a culture of trust and technical discipline. Today's infographic reflects what I learned along the way. Core principles matter, but they are only the beginning. To build software effectively in agile environments, teams need to grow both technically and relationally. Techniques like agile architecture or managing dependencies at scale are not for show—they are what sustain agility when projects get complex. Looking back, the most valuable lesson was this: agility is not about moving fast, but about learning fast—together. #AgileDevelopment #SoftwareEngineering #TeamLeadership #ContinuousImprovement #TechMindset

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🚀 In our newly released Rovo Dev CLI 0.9.6, you can now paste images directly in your terminal. I use this to build prototypes directly from wireframes. Let me show you how! Other good stuff we added in this release - - Use "@" to find and insert a file path into the prompt - Use "!" to reference an instruction in your prompt - Added keyboard navigation for slash commands - Various bug fixes addressing user reported problems

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