This is a content-addressable filesystem, whose storage backend is Discord.
You must first initialize an empty (or at least
one that has no pins) channel with (init-channel <id>). This will
take something like 4 hours, because of Discord rate limiting.
Then, mount the channel: (mount-channel <id>).
Then, it is possible to get a binary file already existing in the
filesystem with (get <hash-string>), which returns an '(unsigned-byte 8)
array. (Or, NIL on hash collision or other failure)
To delete a file, we do (del <hash-string>). To put a file, we do
(put stream) or (put array) or (put #p"/path/to/file") passing either some stream of (unsigned-byte 8), or an
array of (unsigned-byte 8), or a pathname.
This is just for fun! Getting and putting files (especially large ones) almost certaintly takes an inordinate amount of time, as Discord has some pretty crazy rate limits.