Project information: MakeMKV is already a flatpak. It is currently going through an old DVD collection for me (on Bazzite) It is not extracting subtitles though. That seems to be via a CCExtractor command-line tool. I’m not sure how to build an RPM then install that into the container(?) of the flatpak.
Could be this is a request for a new Flathub facility for CCExtractor (I am not sure)
Or a request for an extension to the MakeMKV one, (new feature, not a bug)
Or some flatpak-centric advice to the end user.
Name: CCExtractor
Homepage: https://ccextractor.org/ and GitHub - CCExtractor/ccextractor: CCExtractor - Official version maintained by the core team
License: GNU GENERAL PUBLIC LICENSE… Version 2
Upstream has been contacted: No