I think that's all Python (not a direct executable).
You could just do (see the "Quick Start") four `pip install` and have a dozen lines script to generate the image. But `llama.cpp` and similar do not require e.g. installing Torch (or PyTorch) - you can use `llama.cpp` on a non-specialized machine.
I don't think I have ever once run "pip install transformers" and had it work without three rounds of fiddling
Yep, that's (also) what I meant ;)
Lean, efficient... Also sensible and trouble-less.