I'll check it.
Unfortunately, according to Mr Kovid's reply in this thread
https://www.mobileread.com/forums/sh...d.php?t=336752 It's probably impossible to use calibre DB from another calibre instance.
Am I right?
After some testing of web solution I see, that web access as the only way is to less.
Still trying to install headless calibre on my server (centos7 does not met requirements). When done I'll try to run it via ssh (from another linux machine), this is probably the last chance to use it the way I want. With full client limited to linux machines only, but it may be enough.