Ability to add custom metadata to a file

[fivestones]

Is your feature request related to a problem? Please describe.
I'm often wanting to comment on a file, without the comment being part of the file. And then when browsing through files, these comments are something I would want to see, alongside other file metadata like the filename and date. It'd be amazing to be able to search for files and have matches from this metadata also show up in the search results.

Describe the solution you'd like
When viewing files, you should be able to add custom metadata such as a comment to a file. Filerun is another selfhosted app which does this, and the way it works is useful. There is a details pane on the right and details about the file show up there when you select any file, and comments can be added. Comments should have a date so if there are multiple comments they are listed by date (and maybe by user if there are eventually multiple users) which would end up looking a bit like a chat if there were several comments on the same file by different users.

Describe alternatives you've considered
I've just used filerun which has this, but I think spacedrive will end up being far better than filerun.

Additional context
Thanks for considering!

[jamiepine]

absolutely will have this!

[he1d1]

Music-specific metadata would also be great, I would love the ability to be able to add album covers etc to songs.
I know that you can in VLC, here's a picture:

[minegit]

good stuff