So I’ve tried Jellyfin Book plug-in but since it doesn’t allow pinch-to-zoom (at least on my phone’s app) that will not work for me
I’ve already thinker with Kavita so I’ll probably be ok for the first install.
My problem come when I want to run it in the background (as a client ?) at this point I’m completely lost


The last optional step in the install page on the Kavita wiki gives you steps to register the Kavita exe as a windows service. That is what you want for it to auto start on boot. https://wiki.kavitareader.com/installation/native/