> Markdown version of [/videos/world-congress-2023?page=8](https://www.wearedevelopers.com/videos/world-congress-2023?page=8). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Videos 2223 videos · 24118 moments · 1245.7 hours of content ## World Congress 2023 videos ### Discover .NET MAUI Eliminate device fragmentation without sacrificing native performance. .NET MAUI lets you build true native apps for mobile and desktop from a single, unified C# codebase. - **Speakers:** Codrina Merigo - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 30:28 - [Watch](https://www.wearedevelopers.com/videos/700-discover-net-maui) ### Vikings language, the speech of the king Vasa or today's Swedish? Text classification with ML.NET. A model once classified Polish as Viking runes. Garbage in, garbage out. Learn to master data prep and build accurate text classifiers in C# using ML.NET. - **Speakers:** Daniel Gaszewski - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 27:51 - [Watch](https://www.wearedevelopers.com/videos/701-vikings-language-the-speech-of-the-king-vasa-or-today-s-swedish-text-classification-with-ml-net) ### Reality and Beyond: Coding a Drone Using {Unity 3D .NET} and ChatGPT AI! Move beyond a printed hello world and control a physical drone. Master mixed reality by combining Unity 3D, .NET, and ChatGPT to build spatial computing apps. - **Speakers:** Zaid Zaim - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 38:28 - [Watch](https://www.wearedevelopers.com/videos/702-reality-and-beyond-coding-a-drone-using-unity-3d-net-and-chatgpt-ai) ### Mutation Testing and Fuzzing in C# Standard code coverage is a deceptive numbers game. Expose weak unit tests by intentionally injecting mutations into your C# code. Discover how fuzzing builds truly resilient applications. - **Speakers:** Michael Contento - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 29:28 - [Watch](https://www.wearedevelopers.com/videos/703-mutation-testing-and-fuzzing-in-c) ### Testing .NET applications a Tool box for every developer Testing isn't just about finding bugs; it fundamentally drives developer happiness. Discover how to build a flexible .NET toolbox that transforms legacy code anxiety into deployment confidence. - **Speakers:** Alexandre Borges - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 29:13 - [Watch](https://www.wearedevelopers.com/videos/704-testing-net-applications-a-tool-box-for-every-developer) ### Tackling Complexity With Functional Programming And Kotlin Ditch brittle exception handling and endless boolean flags. Discover how practical functional programming concepts in Kotlin can transform complex business requirements into readable, maintainable, and compiler-safe systems. - **Speakers:** Georg Dresler - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 28:48 - [Watch](https://www.wearedevelopers.com/videos/705-tackling-complexity-with-functional-programming-and-kotlin) ### F#, path to functional enlightenment Ditch the mental overhead of continuous state mutation. Master F# to securely deliver full-stack applications across JS, Rust, and Python using purely functional code. - **Speakers:** Onur Gumus - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 29:15 - [Watch](https://www.wearedevelopers.com/videos/706-f-path-to-functional-enlightenment) ### Create DSL (Domain Specific Language) on top of Swift Why build a custom compiler from scratch when you can leverage Swift? Discover how native result builders let you craft elegant, declarative DSLs for complex business logic. - **Speakers:** Milan Todorović - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 27:18 - [Watch](https://www.wearedevelopers.com/videos/707-create-dsl-domain-specific-language-on-top-of-swift) ### Data is Key: Scraping Metadata from Websites Tired of scrapers breaking after minor UI updates? Stop relying on brittle CSS selectors. Build resilient metadata extractors using JSON-LD and Open Graph protocols. - **Speakers:** Lars Kölker - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 21:17 - [Watch](https://www.wearedevelopers.com/videos/708-data-is-key-scraping-metadata-from-websites) ### An introduction to Extreme Programming Is your team truly agile, or just practicing disguised waterfall? Discover how Extreme Programming can transform your sprint cycles with pair programming and test-driven development. - **Speakers:** Jose Reales - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 26:59 - [Watch](https://www.wearedevelopers.com/videos/709-an-introduction-to-extreme-programming) ### How to ignore bugs (safely) Chasing a zero-bug policy is a trap that kills engineering velocity. Learn a data-driven triage framework to safely ignore trivial defects and prioritize what actually impacts revenue. - **Speakers:** Anja Kunkel - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 23:03 - [Watch](https://www.wearedevelopers.com/videos/711-how-to-ignore-bugs-safely) ### Unleashing the Power of Developers: Why Cybersecurity is the Missing Piece?!? Tino Shock argues developers control critical infrastructure and require a professional ethical oath. Find out why fixing human flaws, not technical bugs, is the real key to cybersecurity. - **Speakers:** Tino Sokic - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 27:36 - [Watch](https://www.wearedevelopers.com/videos/712-unleashing-the-power-of-developers-why-cybersecurity-is-the-missing-piece) [Next page](https://www.wearedevelopers.com/videos/world-congress-2023?page=9)