Antirez/h3.c: MiniMax H3 inference engine for Mac computers

Antirez/h3.c is a native inference engine for the MiniMax-H3 model optimized for Apple Silicon Macs using Metal acceleration. The project supports prompt-to-video/audio generation with features like first/last-frame conditioning and is currently focused on performance and memory optimization for M3 Max and M5 Max chips. Users can build the engine locally and run interactive sessions to generate videos from text prompts.