Serviio

Is it possible or could it be added to allow a local folder that Serviio searches for thumbnails (folder.jpg, videofilename.jpg, etc.) I have multiple servers on my network and if I could put my thumbnails in one shared folder across my network, it would mean only one copy of of the thumbnail is needed instead of one for each server source.

You could certainly link to that folder which contains the thumbnails as another Serviio shared library location. However, I believe (and I might be wrong) that the thumbnail file is required to be in the same folder as the media file. I have no idea if it would be possible to have image files in one location match up with a media file in a separate folder. It might require some significant effort by Serviio to maintain the links, and might not be worth the processing power. Just a guess on my part.