> Markdown version of [/videos?event=world-congress-2025&page=136](https://www.wearedevelopers.com/videos?event=world-congress-2025&page=136). 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 2243 videos · 24305 moments · 1256.1 hours of content ## All videos ### 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) ### OPA for the cloud natives Are your security checks tightly coupled to your code? Open Policy Agent decouples them. Discover how shifting left with policy-as-code automates your cloud-native governance. - **Speakers:** Philipp Krenn - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 26:23 - [Watch](https://www.wearedevelopers.com/videos/713-opa-for-the-cloud-natives) ### Going Beyond Passwords: The Future of User Authentication Are text-based passwords putting your application at risk? Learn to architect frictionless, phishing-resistant authentication using device-bound passkeys, WebAuthn, and single sign-on frameworks. - **Speakers:** Gift Egwuenu - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 27:55 - [Watch](https://www.wearedevelopers.com/videos/714-going-beyond-passwords-the-future-of-user-authentication) ### A hundred ways to wreck your AI - the (in)security of machine learning systems Are your machine learning models secretly harboring critical vulnerabilities? Discover how to defend your AI infrastructure against novel data poisoning attacks and traditional remote code execution exploits. - **Speakers:** Balázs Kiss - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 24:23 - [Watch](https://www.wearedevelopers.com/videos/715-a-hundred-ways-to-wreck-your-ai-the-in-security-of-machine-learning-systems) ### Hack-Proof The Node.js runtime: The Mechanics and Defense of Path Traversal Attacks Are attackers using basic directory escapes to bypass your filters and steal SSH keys? Discover the exact Node.js API sequence needed to permanently neutralize path traversal attacks. - **Speakers:** Sonya Moisset - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 27:10 - [Watch](https://www.wearedevelopers.com/videos/716-hack-proof-the-node-js-runtime-the-mechanics-and-defense-of-path-traversal-attacks) ### Turning Container security up to 11 with Capabilities Are default container permissions exposing your internal traffic to rogue images? Discover why dropping all Linux kernel capabilities is the ultimate way to shrink your blast radius. - **Speakers:** Mathias Tausig - **Event:** World Congress 2023 - **Published:** September 27, 2023 - **Duration:** 28:47 - [Watch](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) [Next page](https://www.wearedevelopers.com/videos?page=137)