Could you tell calibre to open the network share as a library?
Not quite the same, I'm currently using calibre with a library on a remote server (albeit samba share over VPN) and it doesn't download the books to my local device, unless i choose to save them from my library to it.
I love the messages from each of the people selected as they come in - some very interesting long scripts, others a single line, but all have made me smile.
I was selected a wee while back, but haven't gotten around to writing as yet - will add it to my task list.
Now, I know you mean running it within the terminal a la vim/emacs/nano etc, but you can set up sublime to run from terminal in linux (I set it up successfully on fedora, after ten minutes googling).
The downside of that is that it runs as an x windows in comparison to directly in terminal, which is a bit of an bummer when trying to work remotely. As much as I'd love for it to run in term, it'd pretty much just be a vim-alike, and why reinvent the wheel.