Mar 3 · 28 min read · Hi everyone. In this handbook, you will learn about the growing world of open source, and how it can shape your career as a developer. Open source is something I found confusing and scary when I first
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Feb 24 · 36 min read · In fintech or wealthtech products, people constantly need quick market context. They need to know why a particular stock moved, what changed recently, or what they should watch next. This usually beco
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Feb 23 · 31 min read · You wake up and open your laptop. Your browser has 27 tabs open, your inbox is overflowing with unread newsletters, and meeting notes are scattered across three apps. Sound familiar? Now imagine you h
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Feb 13 · 45 min read · If you've ever wondered how chat applications like Slack, Discord, or WhatsApp work behind the scenes, this tutorial will show you. You'll build a real-time chat server from scratch using Go, learning the fundamental concepts that power modern commun...
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Feb 12 · 22 min read · Most React developers don’t break the data fetching process all at once. It usually degrades gradually, slowly. Traditionally, you may have used a useEffect here, a loading flag there, and an error state along with it to tackle data fetching. Moving ...
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Feb 5 · 70 min read · In the world of big data, performance isn't just about bigger clusters – it's about smarter code. Spark is deceptively simple to write but notoriously difficult to optimize, because what you write isn't what Spark executes. Between your transformatio...
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Feb 4 · 60 min read · Ah, Bluetooth. The technology we all love to hate. It's like that one friend who's always just about to connect, but then... doesn't. For years, Android developers have been locked in a dramatic, often tragic, romance with Bluetooth. We've wrestled w...
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Jan 27 · 40 min read · Bluetooth Low Energy advertising has always been one of those things developers “just use” until it breaks in subtle, painful ways. You set a name, throw in a UUID, maybe add some manufacturer data, and hope everything fits. For years, the unspoken r...
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Jan 27 · 34 min read · In this tutorial, you'll learn how to build a complete RAG (Retrieval-Augmented Generation) search application from scratch. Your application will allow users to upload documents, store them securely, and search through them using AI-powered semantic...
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