Since 2020, several platforms have allowed permanent downloads of DRM-free files.
If you love the aesthetic of an index (the raw file management), buy the Blu-Ray. Once you own the Blu-Ray, you can legally use MakeMKV or Handbrake to rip the disc to your personal server (Plex or Jellyfin). You can then create your own with folders like Laila Majnu (2018)/1080p Remux/ or Laila Majnu (2018)/OST Flac/ . index of laila majnu