I was thinking about my current situation.

I have a NAS with all the comics on it organized between manga, manhua, and manhwa and inside several sub directories with all the series I am following that I have read, am reading, and will read in the future.
Since space on the "tablet" (in my case an iPad) is limited and every time to transfer I have to "turn on the PC, start the app, transfer" becomes "inconvenient" I was wondering if it wouldn't be possible to create a "container" (instead of a virtual machine) with just the "YACReader Library" app so that it goes to read the shared folder and publishes on my local network the list of all available CBZ format comics so that via phone or tablet I can read "over the air" in my network without keeping the PC (or a whole VM on the NAS) on and thus wasting resources.

How does that sound as an idea ? Obviously the whole thing would be on a Linux container with the YACReader Library service running in CLI format if possible.

Check the linux section of the forum, you can run yacreaderlibraryserver (which is a command line tool) in a docker container.