The leejet/stable-diffusion. cpp project is essentially a highly efficient, pure C/C++ implementation of various diffusion models
Here's a friendly breakdown of how it can be useful, how to get started, and a little sample code to get your hands dirty
From a technical standpoint, 11cafe/jaaz is an open-source, multi-modal creative assistant. The key terms here are "open-source" and "multi-modal"
When a new ComfyUI plugin like the one you're interested in emerges, here's how you'd typically approach it from a software engineer's viewpoint to determine its value and usage