Cool idea, but I don't think you should focus on static files. People rarely spin up a server for that these days.
Depends on the domain. There's a bunch of sciences using large datasets served up efficiently using static file formats, e.g., https://zarr.dev/ and https://parquet.apache.org/
how did you come to this conclusion ?
I did it yesterday.
I did last week (converted ghost to static) and was half wondering if some self contained binary wouldn't be faster so I feel like this was made for me, but I accept I'm not the typical user