File Input or SymLinks

[Shikakka]

Thanks for making this library!
I previously used Spritezero in Javascript. Not the Spritezero-CLI version.

Here I could input a list of files instead of pointing to a folder.
Would it be possible to implement something like this?

I probably have a weird use case, where I can upload to 3 different folders, for example:
/sprites/public
/sprites/version-a
/sprites/version-a/part-b

where I want to generate a spritesheet for part-b, but including the sprites in public and version-a.
But not including /sprites/version-a/part-a.

I tried to use Symbolic Links to create a new directory first /sprites/temp then create symbolic links to all .svgs.
They work in other programs correctly.

But this gives me the error:

Error: cannot make a valid sprite name from "/sprites/temp/new-sprite.svg"

When i copy the files to the same folder, so no symlinks, they work correctly.

[Shikakka]

It would very much be a "nice to have" for now I just copy the files.
What another option would be is input multiple folders.

Something like a comma seperation:

spreet --retina /sprites/public,/sprites/version-a,/sprites/version-a/part-b my_style@2x

But again it is a "nice to have" but probably not in scope of this project because of this very uncommon usecase.