I have lots of friends with various Kodi devices (NUC, Pi, Zbox etc.) and most with Synology NAS boxes but unfortunately, many also with media libraries that are a mess. Asked to get a house with three Kodi devices onto one central Synology based database, I wanted a way to export the media library preserving the watched state and another way to organise the media into separate folders.
My collection of Home Assistant, CoreELEC, IoT, Synology, Kodi and other technical tips gathered over the years.