Cosmocc and Cosmopolitan are remarkable technical achievements and llamafile made me discover them.
The llamafile UX (CLI interface and web server with chat to quickly interact with the model) is great and make easy to download and play with a local LLM.
However I fail to see use cases where I would build a solution built on a llamafile. If I want to play with multiple models, I don't need to have the binary attached to the model data. If I want to play with a model on multiple operating systems, I'm fine downloading the llamafile tool binary for the platform separately from the model data (in fact, on Windows one have to download the llamafile.exe separately anyway because of a limit of the OS for executable files).
So Cosmopolitan is great tech, the llamafile command (the "UX for a model" part) is great, but I'm not convinced by the value of Cosmopolitan applied here.