Affan
@_aff4n_
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Writes code that works… eventually. Full-time debugger. Part-time keyboard smasher. Building NextUp - where ideas go to become something.
Joined May 2024
🚀 Introducing NextUp - a platform built for startups and developers to share ideas, validate products, and get real feedback. With NextUp, you can: 💡 Share your product or idea 💬 Get feedback from real users and devs 📈 See what’s trending and worth building next
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How CSRF attacks really work CSRF isn’t hacking your server. It’s tricking your user’s browser. If a user is logged into your site, their browser automatically sends cookies. An attacker: 1️⃣ Creates a malicious link or form 2️⃣ Victim clicks it while logged in 3️⃣ Browser sends
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Features don’t create value. Solved problems do. Before building anything, answer: “What pain disappears if this works?” If the answer is fuzzy, the feature is useless. Code is easy. Clarity is hard.
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This is all it takes to get an unpaid internship in 2026 : Python C C++ Java HTML CSS JavaScript TypeScript React Next.js Vue Angular Svelte Node.js Express Django Flask FastAPI Spring Boot PHP Laravel Ruby Ruby on Rails Go Rust
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Why databases get slow as your app grows (and how indexes fix it) A database without indexes works like this: It scans every row to find what you asked for. That’s fine for 1,000 rows. Disaster at 1,000,000. An index is a lookup table. Like a book’s index → jump straight to
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If you’re building a SaaS, track only 3 things early: • Users • Retention • Revenue Everything else is noise. Focus beats dashboards.
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Skills that pay in this AI Era (2025): > Python + PyTorch / TensorFlow > LangChain, RAG, Vector DBs > Full Stack: React/Next.js + Node/Go/Rust > APIs: GraphQL, gRPC, tRPC > Databases: PostgreSQL, MongoDB, Redis > DevOps: Docker, Kubernetes > Cloud: AWS / GCP /
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Finally got time to watch Stranger Things season 5! 😁
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What actually happens when you type a URL and hit Enter? Most people think the page “just loads,” but behind the scenes, a lot happens quickly. You enter a URL, like https://t.co/BTLX9PV2sh. The browser needs its IP address. DNS Lookup The browser checks: → Its own
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Claude Opus is better for building real products. ChatGPT is better for content and quick answers. What's for UI/UX ?
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