> Markdown version of [/videos/world-congress-2026-europe?page=21](https://www.wearedevelopers.com/videos/world-congress-2026-europe?page=21). 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 2026 videos ### JSX to Live Activity: The Story of Voltra Build iOS Live Activities and Android widgets without touching Swift or Kotlin. Discover how Voltra overcomes Apple's 4KB limit to deliver server-driven UI updates entirely in JSX. - **Speakers:** Szymon Chmal - **Event:** World Congress 2026 Europe - **Published:** July 9, 2026 - **Duration:** 35:56 - [Watch](https://www.wearedevelopers.com/videos/100118-jsx-to-live-activity-the-story-of-voltra) ### TiDB, One Layer at a Time: How Distributed SQL Became an Agentic AI Backbone TiDB originally solved painful database sharding. Now, its decoupled architecture eliminates brittle ETL pipelines to provide a synchronized hybrid search backbone for agentic AI. - **Speakers:** Daniël van Eeden, Mattias Jonsson - **Event:** World Congress 2026 Europe - **Published:** July 9, 2026 - **Duration:** 27:27 - [Watch](https://www.wearedevelopers.com/videos/100117-tidb-one-layer-at-a-time-how-distributed-sql-became-an-agentic-ai-backbone) ### Extreme Rules Lawyering with the ECMAScript Specifications What happens when you return a Promise directly from a class constructor? Dive into the ECMAScript specifications to exploit semantic loopholes and hijack fundamental JavaScript behaviors. - **Speakers:** Peter Kröner - **Event:** World Congress 2026 Europe - **Published:** July 9, 2026 - **Duration:** 32:03 - [Watch](https://www.wearedevelopers.com/videos/100116-extreme-rules-lawyering-with-the-ecmascript-specifications) ### Dangerous Reactivity: Why AI Output Is the New XSS Blindly rendering LLM output in reactive frontends creates severe XSS vulnerabilities. Learn why engineering teams must enforce a strict zero-trust policy for all AI-generated content. - **Speakers:** Ramona Schwering - **Event:** World Congress 2026 Europe - **Published:** July 9, 2026 - **Duration:** 23:44 - [Watch](https://www.wearedevelopers.com/videos/100115-dangerous-reactivity-why-ai-output-is-the-new-xss) ### Docker build without Docker Deleting a file during a Docker build doesn't actually remove it from the archive. Uncover the true mechanics of container layers to master image optimization. - **Speakers:** Oliver Seitz - **Event:** World Congress 2026 Europe - **Published:** July 9, 2026 - **Duration:** 28:40 - [Watch](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker) ### Building the Future of Java: AI Agents, MCP, and Next-Gen App Development Simple code completion is dead. Discover how autonomous AI agents, Quarkus, and the Model Context Protocol empower developers to build self-healing Java applications. - **Speakers:** Daniel Oh - **Event:** World Congress 2026 Europe - **Published:** July 9, 2026 - **Duration:** 31:58 - [Watch](https://www.wearedevelopers.com/videos/100113-building-the-future-of-java-ai-agents-mcp-and-next-gen-app-development) ### Rules, Heuristics, or LLMs? Lessons from Solving the Same Problem Twice One engineering team built a drunk text generator twice. They pitted traditional heuristics against a fine-tuned LLM. Discover which approach truly minimizes hidden technical debt. - **Speakers:** Artur Naumenko - **Event:** World Congress 2026 Europe - **Published:** July 9, 2026 - **Duration:** 22:16 - [Watch](https://www.wearedevelopers.com/videos/100112-rules-heuristics-or-llms-lessons-from-solving-the-same-problem-twice) ### 5 Years in Cloud Native: The Good, the Bad, and the Bill A literal data center fire forced a costly lift-and-shift migration. Discover how this engineering team stopped burning money by embracing Terraform, scaling ceilings, and aggressive edge caching. - **Speakers:** Simone Desantis - **Event:** World Congress 2026 Europe - **Published:** July 9, 2026 - **Duration:** 14:59 - [Watch](https://www.wearedevelopers.com/videos/100111-5-years-in-cloud-native-the-good-the-bad-and-the-bill) ### From KPIs to KVIs: What HR Leaders Can Learn from Gamers About Energy, Performance & Longevity Traditional KPIs ignore your team's draining health bar. Stop playing calendar Tetris. Adopt Key Vitality Indicators to manage energy and sustainably generate elite performance. - **Speakers:** Toan Nguyen - **Event:** World Congress 2026 Europe - **Published:** July 9, 2026 - **Duration:** 30:27 - [Watch](https://www.wearedevelopers.com/videos/100110-from-kpis-to-kvis-what-hr-leaders-can-learn-from-gamers-about-energy-performance-longevity) ### When Should You Use an Agent? Architectural Trade-offs in Agentic Systems The era of coding line-by-line is over. Learn when to selectively replace rigid deterministic workflows with dynamic AI agents. Master the architectural trade-offs of autonomous systems. - **Speakers:** Matheus Guimaraes - **Event:** World Congress 2026 Europe - **Published:** July 9, 2026 - **Duration:** 32:48 - [Watch](https://www.wearedevelopers.com/videos/100109-when-should-you-use-an-agent-architectural-trade-offs-in-agentic-systems) ### Building Sovereign AI: Lessons from Deploying Secure RAG Systems using Confidential Computing How do you deploy generative AI under strict compliance laws? Learn to architect secure, truly sovereign RAG pipelines using confidential computing to protect data in use. - **Speakers:** Isha Salania - **Event:** World Congress 2026 Europe - **Published:** July 9, 2026 - **Duration:** 31:52 - [Watch](https://www.wearedevelopers.com/videos/100108-building-sovereign-ai-lessons-from-deploying-secure-rag-systems-using-confidential-computing) ### Speed up your CI/CD pipelines by caching build & runtime artifacts Are slow dependency pulls choking your CI/CD pipelines? Discover how an intelligent local caching proxy slashes wait times by 40% while instantly blocking software supply chain attacks. - **Speakers:** Thijs Feryn - **Event:** World Congress 2026 Europe - **Published:** July 9, 2026 - **Duration:** 29:08 - [Watch](https://www.wearedevelopers.com/videos/100107-speed-up-your-ci-cd-pipelines-by-caching-build-runtime-artifacts) [Next page](https://www.wearedevelopers.com/videos/world-congress-2026-europe?page=22)