Soundscape is a shareable working prototype built from a SayCraft conversation: a running web app with a live preview URL, not a static mockup or meeting notes. A team described it in a real product discussion and SayCraft generated the deployable app as they talked. The goal: Real-time music visualizer with audio-reactive bars, particles, waveforms, bloom effects, beat-pulsing gradients, and a dark hypnotic stage.. This page is the full build replay.