Got a massive idea but stuck in the "just talking about it" phase? This session cuts the fluff and dives straight into how to build and prototype at lightning speed using AI Studio Build and Antigravity for free. It breaks down Google DeepMind's AI tech stack so viewers know exactly which tools to use, when to reach for heavyweights like Gemini 3.1 Pro or the new Gemma 4, and when to stay fast with Gemini 3 Flash and Flash-Lite. It also explores Veo 3.1 Lite for video generation, NanoBanana 2, Lyria 3 for music generation, Genie 3 for world model building, and OpenClaw with Gemini to push prototype limits. Expect basically zero slides and more shipping, with live demos showing how to turn side quests from ideas into working prototypes, add new features to existing codebases, and troubleshoot builds and ideas in a live Q&A.