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Anatomy of a Scalable Python Project (FastAPI)
💡 Learn how to design great software in 7 steps: https://arjan.codes/designguide. In this video, we break down the anatomy of a scalable Python project using FastAPI and uv. You’ll learn how to set u...
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SOLID: Writing Better Python Without Overengineering
Check out https://www.squarespace.com/arjancodes to save 10% off your first purchase of a website or domain using code ARJANCODES. Are the SOLID principles still relevant when you’re writing Python in...
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Python Singleton Pattern: Smarter Than You Think?
💡 Learn how to design great software in 7 steps: https://arjan.codes/designguide. Singletons are often criticized for introducing global state and making code harder to test—but there’s more to the s...
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These Patterns Will Change How You Write AI Agent Code in Python
Check out https://www.squarespace.com/arjancodes to save 10% off your first purchase of a website or domain using code ARJANCODES. If you’re building AI agents in Python and your code is starting to g...
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10 Standard Library Modules That Make Python Insanely Powerful
💡 Learn how to design great software in 7 steps: https://arjan.codes/designguide. Python’s standard library is one of its greatest strengths, but many developers only scratch the surface. In this vid...
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PydanticAI: the AI Agent Framework Winner
Check out https://www.squarespace.com/arjancodes to save 10% off your first purchase of a website or domain using code ARJANCODES. Pydantic AI lets you integrate large language models like GPT-5 **dir...
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We need to talk.
💡 Learn how to design great software in 7 steps: https://arjan.codes/designguide. We all have assumptions that quietly hold us back. I’ve been guilty of this my whole career. In this video, I share a...
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How to Write Great Unit Tests in Python
Check out https://www.squarespace.com/arjancodes to save 10% off your first purchase of a website or domain using code ARJANCODES. Want to learn how to write professional, maintainable unit tests in P...
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UV Is Getting Better
💡 Learn how to design great software in 7 steps: https://arjan.codes/designguide. In this video, I walk you through everything new in uv, including major improvements to performance, dependency manag...
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These Python Libraries Deserve More Attention
💡 Learn how to design great software in 7 steps: https://arjan.codes/designguide. Python’s standard library is one of its greatest strengths, but many developers only scratch the surface. In this vid...
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The Builder Pattern in Python: Finally Explained!
💡 Learn how to design great software in 7 steps: https://arjan.codes/designguide. In this video, I show you the Builder Pattern in Python. It’s a practical and underrated design pattern you’re probab...
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Is SaaS Dead? Here's a Senior Engineer's Perspective
Check out https://www.squarespace.com/arjancodes to save 10% off your first purchase of a website or domain using code ARJANCODES. Is SaaS dead? Some claim AI agents and vibe-coded micro-SaaS will rep...
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