> Markdown version of [/videos/mainstage?page=4](https://www.wearedevelopers.com/videos/mainstage?page=4). 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 2123 videos · 23049 moments · 1194.7 hours of content ## Mainstage videos ### Building Systems that Last Amazon S3 scaled to 300 microservices with zero downtime. Building evolvable systems requires cell-based architecture. Discover how to leverage efficient languages like Rust to survive extreme cloud scale. - **Speakers:** Werner Vogels - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 34:36 - [Watch](https://www.wearedevelopers.com/videos/1389-building-systems-that-last) ### The future of Stack Overflow as the most vital source for technologists While 80% of developers use AI tools, only 29% actually trust the output. See how Stack Overflow is ending endless debugging loops with human-validated knowledge. - **Speakers:** Jody Bailey, Prashanth Chandrasekar - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 31:10 - [Watch](https://www.wearedevelopers.com/videos/1390-the-future-of-stack-overflow-as-the-most-vital-source-for-technologists) ### Software is the New Fuel, AI the New Horsepower - Pioneering New Paths at Mercedes-Benz Mercedes-Benz is rewriting 130 years of automotive legacy. Software and AI are now their foundational horsepower. Discover how 200 petabytes of data drive this software-defined vehicle revolution. - **Speakers:** Katrin Lehmann, Magnus Östberg - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 18:05 - [Watch](https://www.wearedevelopers.com/videos/1388-software-is-the-new-fuel-ai-the-new-horsepower-pioneering-new-paths-at-mercedes-benz) ### The Future Past of Technology - A Game Developers POV What if Fortnite and TikTok were the ultimate platforms for scientific research? Uncover how game engines are transforming advanced AI training and global education. - **Speakers:** Johanna Pirker - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 29:27 - [Watch](https://www.wearedevelopers.com/videos/1386-the-future-past-of-technology-a-game-developers-pov) ### The State of GenAI & Machine Learning in 2025 Generating code faster won't fix your entire development lifecycle. Discover why teams in 2025 must abandon isolated AI models and embrace secure, interconnected agentic systems for true productivity. - **Speakers:** Alejandro Saucedo - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 26:47 - [Watch](https://www.wearedevelopers.com/videos/1383-the-state-of-genai-machine-learning-in-2025) ### Compose the Future: Building Agentic Applications, Made Simple with Docker Building agentic AI applications is now as simple as running standard containers. See how Docker Compose integrates models as top-level primitives to streamline your multi-LLM architectures. - **Speakers:** Jim Clark, Mark Cavage, Tushar Jain, Yunong Xiao - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 50:09 - [Watch](https://www.wearedevelopers.com/videos/1384-compose-the-future-building-agentic-applications-made-simple-with-docker) ### 402 - Payment Required For three decades, the HTTP 402 status code remained an untouched placeholder. Today, autonomous AI agents are forcing developers to finally standardize this missing machine-to-machine payment protocol. - **Speakers:** Brian Whippo - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 20:42 - [Watch](https://www.wearedevelopers.com/videos/1381-402-payment-required) ### How AI Models Get Smarter Standardized benchmarks won't guarantee production success. Learn how test-time reasoning and agentic workflows are turning structured English into the modern developer's most powerful programming language. - **Speakers:** Ankit Patel - **Event:** World Congress 2025 - **Published:** July 31, 2025 - **Duration:** 35:16 - [Watch](https://www.wearedevelopers.com/videos/1374-how-ai-models-get-smarter) ### Open Source AI, To Foundation Models and Beyond Closed AI is not naturally safer. Transparent access accelerates vulnerability detection, pushing engineers past generalized foundation models toward hyper-specialized, highly efficient edge computing. - **Speakers:** Andreas Blattmann, Ankit Patel, Lucie-Aimée Kaffee, Matt White, Philipp Schmid - **Event:** World Congress 2025 - **Published:** July 31, 2025 - **Duration:** 31:05 - [Watch](https://www.wearedevelopers.com/videos/1375-open-source-ai-to-foundation-models-and-beyond) ### Official Opening of WeAreDevelopers World Congress Generating an AI image consumes the same energy as charging a smartphone. Uncover the hidden environmental costs of scaling artificial intelligence and learn to build intentional, energy-conscious solutions. - **Speakers:** Chris Heilmann - **Event:** World Congress 2024 - **Published:** August 20, 2024 - **Duration:** 14:01 - [Watch](https://www.wearedevelopers.com/videos/1138-official-opening-of-wearedevelopers-world-congress) ### The Data Phoenix: The future of the Internet and the Open Web Why do only 40% of developers trust AI coding tools? Discover how community-curated data and verified knowledge will reverse the LLM brain drain to save the open web. - **Speakers:** Prashanth Chandrasekar - **Event:** World Congress 2024 - **Published:** August 20, 2024 - **Duration:** 35:06 - [Watch](https://www.wearedevelopers.com/videos/1116-the-data-phoenix-the-future-of-the-internet-and-the-open-web) ### The shadows of reasoning – new design paradigms for a gen AI world Generative AI merely mimics true understanding, leaving enterprise apps vulnerable to logical traps. Learn a new design paradigm that makes large language models fully transparent and auditable. - **Speakers:** Jonas Andrulis - **Event:** World Congress 2024 - **Published:** August 20, 2024 - **Duration:** 25:14 - [Watch](https://www.wearedevelopers.com/videos/1000-the-shadows-of-reasoning-new-design-paradigms-for-a-gen-ai-world) [Next page](https://www.wearedevelopers.com/videos/mainstage?page=5)