> Markdown version of [/videos?event=world-congress-2025&page=127](https://www.wearedevelopers.com/videos?event=world-congress-2025&page=127). 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 ### What you need to know about Core Web Vitals Stop relying on lab-simulated Lighthouse scores that mask reality. Master Core Web Vitals to quantify loading, stability, and interactivity through actual user experiences. - **Speakers:** Ines Akrap - **Event:** WeAreDevelopers LIVE - **Published:** December 1, 2023 - **Duration:** 58:59 - [Watch](https://www.wearedevelopers.com/videos/833-what-you-need-to-know-about-core-web-vitals) ### Fighting test flakiness with time machines Stop patching flaky tests with arbitrary wait commands. Start using time-travel debuggers to step backward through execution states. Eliminate end-to-end instability for good. - **Speakers:** Filip Hric - **Event:** WeAreDevelopers LIVE - **Published:** December 1, 2023 - **Duration:** 50:28 - [Watch](https://www.wearedevelopers.com/videos/834-fighting-test-flakiness-with-time-machines) ### What's new in CSS for Designers? Are static design tools limiting your dynamic web experiences? Discover how modern CSS features like Subgrid, container queries, and OKLCH colors natively solve your toughest alignment and theming challenges. - **Speakers:** Onur Gumus - **Event:** WeAreDevelopers LIVE - **Published:** December 1, 2023 - **Duration:** 59:20 - [Watch](https://www.wearedevelopers.com/videos/835-what-s-new-in-css-for-designers) ### Building Products in the era of GenAI Building successful GenAI products is no longer about training specialized models. It requires swift API integration, rigorous software engineering, and a relentless ship-to-learn mindset. - **Speakers:** Julian Joseph - **Event:** WeAreDevelopers LIVE - **Published:** November 17, 2023 - **Duration:** 59:39 - [Watch](https://www.wearedevelopers.com/videos/827-building-products-in-the-era-of-genai) ### Develop AI-powered Applications with OpenAI Embeddings and Azure Search Stop splitting text by arbitrary character counts. Master the RAG pattern using OpenAI embeddings and Azure Search. Build fast, context-aware AI applications that cite their own sources. - **Speakers:** Rainer Stropek - **Event:** WeAreDevelopers LIVE - **Published:** November 17, 2023 - **Duration:** 57:52 - [Watch](https://www.wearedevelopers.com/videos/828-develop-ai-powered-applications-with-openai-embeddings-and-azure-search) ### Multimodal Generative AI Demystified Task-specific neural networks are rapidly becoming obsolete. Master the transformer architectures, latent diffusion models, and security guardrails needed to build the next generation of multimodal AI. - **Speakers:** Ekaterina Sirazitdinova - **Event:** WeAreDevelopers LIVE - **Published:** November 17, 2023 - **Duration:** 56:55 - [Watch](https://www.wearedevelopers.com/videos/829-multimodal-generative-ai-demystified) ### What comes after ChatGPT? Vector Databases - the Simple and powerful future of ML? How do you ground ChatGPT in private enterprise data without hitting strict token limits? Discover how vector databases use deep-learning embeddings to search unstructured content and eliminate AI hallucinations. - **Speakers:** Erik Bamberg - **Event:** WeAreDevelopers LIVE - **Published:** November 17, 2023 - **Duration:** 59:38 - [Watch](https://www.wearedevelopers.com/videos/830-what-comes-after-chatgpt-vector-databases-the-simple-and-powerful-future-of-ml) ### OpenAI for FinTech: Building a Stock Market Advisor Chatbot Could an AI instantly analyze high-volume stock data without cumbersome ETL pipelines? Learn to build a scalable, hallucination-free financial chatbot using LangChain, OpenAI Whisper, and distributed SQL. - **Speakers:** Akmal Chaudhri - **Event:** WeAreDevelopers LIVE - **Published:** November 10, 2023 - **Duration:** 56:33 - [Watch](https://www.wearedevelopers.com/videos/805-openai-for-fintech-building-a-stock-market-advisor-chatbot) ### Leveraging Real time data in FSIs Traditional SQL schemas throttle high-throughput financial systems under heavy loads. Discover how intelligent NoSQL aggregation drops real-time transaction latency to sub-millisecond ranges. - **Speakers:** Tim Faulkes - **Event:** WeAreDevelopers LIVE - **Published:** November 10, 2023 - **Duration:** 41:51 - [Watch](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) ### Future-Proofing FinTech With Blockchain Technology John Woods proves blockchain isn't for every application. Smart contracts demand eternal backward compatibility. Discover the mathematical backbone securing tomorrow's decentralized finance against quantum computing threats. - **Speakers:** John Woods - **Event:** WeAreDevelopers LIVE - **Published:** November 10, 2023 - **Duration:** 51:01 - [Watch](https://www.wearedevelopers.com/videos/808-future-proofing-fintech-with-blockchain-technology) ### Guided Memory Management: Rust's Ownership Model How does Rust guarantee memory safety without a garbage collector? Demystify the language's unique ownership model to build fast, bulletproof system-level applications. - **Speakers:** Stefan Baumgartner - **Event:** World Congress 2023 - **Published:** November 10, 2023 - **Duration:** 0:18 - [Watch](https://www.wearedevelopers.com/videos/809-guided-memory-management-rust-s-ownership-model) ### Passwordless future: WebAuthn and Passkeys in practice Traditional passwords and SMS 2FA are failing modern security standards. Master the navigator.credentials API to implement passkeys and deliver frictionless, phishing-resistant logins across all devices. - **Speakers:** Clemens Hübner - **Event:** World Congress 2023 - **Published:** November 10, 2023 - **Duration:** 32:32 - [Watch](https://www.wearedevelopers.com/videos/810-passwordless-future-webauthn-and-passkeys-in-practice) [Next page](https://www.wearedevelopers.com/videos?page=128)