If something is TV or Movie depends entirely on the format, not content. So an Anime TV show needs a TV library and an Anime movie needs a Movie library. No mixing and matching that (though you can get away with it on some titles).
I then treat it just like regular movies or TV shows really. Just extra file naming fiddling sometimes.
You can determine which source - TMDB or TVDB - fits by which matching source you want to use and there you can mix and match a bit because you can set a default order (I use TMDB) for the library and then for specific shows you can use TVDB (Aired) or TVDB (Absolute)… the absolute order sometimes helps for shows that are long and aren’t using the season order (but in that case it’s all ONE season). The DVD order can help there too or for OVAs.
My library episode ordering setting:
You can use an app to help automate the matching and rename files but there really isn’t a good “universal” process amongst groups or services. Anime is always… a little odd. Filebot and tiny media manager I think are common. There’s some anime specific agents and customization you can do to Plex but I gave up trying to fight that and really, TMDB has gotten pretty good about handling Anime titles.
One thing you can do to sorta mix and match between libraries is if you name a collection the same thing in TV library and Movie library they’ll show each other’s content sorta. So you can do Stein:Gate movie collection and Stein:Gate tv collection and each one will show each one between libraries (I did that for Macross).
If you want to get into more details start a new topic (feel free to tag me) and you’ll get some responses. Bunch of us have been managing anime for awhile.
