Have Jellyfin merge custom tasg from nfo file with default tags

[lev]

Jellyfin already allows reading metadata from .nfo files.
I would like to use the tags Jellyfin reads automagically from providers and just add some additional custom tags without overwriting them.
And I only want to have my custom tags saved in a file next to the movie

If I do this with an movie.nfo file it overwrites the other tags.

Code:

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<movie>
  <tag>my-extra-tag</tag>
</movie>

Is it possible to have Jellyfin merge my-extra-tag with tags it already picks up by default?

[34626]

Yes, you can use the metadata editor in Jellyfin or just open the .nfo file (You need to enable this in the library so it saves .nfo files next to movies and use the recommend method of organise the movies like:

Movie library
- Movie1
- - Movie1.mkv
- - movie.nfo
- - poster.jpg
- Movie2
- - Movie2.mkv
- - movie.nfo
- - poster.jpg

You may need to lock it, so Jellyfin wont overwrite the information you add