Running MiniMax H3 Locally on One RTX 4090: A Storybook Becomes a Film

I ran the open-weights MiniMax H3 (Hailuo 3.0) video+audio model on a single 24 GB RTX 4090 and turned six storybook illustrations into a 31-second film with sound. Measured findings: why prompt structure beats resolution 14x, how first/last-frame mode invents narrative in between, and the ComfyUI node bug that fakes a 6x speedup.