InDisk utility

Has anybody heard of a utility like this? Its intent is to create a
ram-disk which appears to be a usable file system, but where the files
are created by guidance given to the layer, such as to mirror a physical
file on a hard disk, or retrieve a remote file from the Internet or
cloud, or the assemble some data from a remote SQL database server into
a disk file that is in the form being requested, etc.?

I'd like to know if it exists so I can use it. If not, I'd like some
FLOSS developers to help me complete it.

Thanks! Please cross-post to any other FLOSS lists you're on asking for
assistance.

https://github.com/RickCHodgin/InDisk

Best regards,
Rick C. Hodgin