I want to override the MediaBaseUrl to something else so that I can have appstream-dep11's media under /media. The problem is that asgen always puts the media in a media directory on the filesystem, so you can't just expose the export directory, you need to transform it to match the MediaBaseUrl by renaming.

Maybe a MediaDirectory configuration option that is used for the output directory and also appended to the MediaBaseUrl in the output, if it is present or something?

I think in reality I'll just keep using media because ImmutableSuites means there's not a conflict between media/main (as-dep11) and media/suite/main (asgen), so this isn't that urgent for me.