anchor.diff:  
     passthru = {
       inherit
  -      plexLibraryPath;
  +      dataDir
  +      libraryPath;
     };
   
     meta = with lib; {
  
positive.code:         --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
          "$out/lib/plexmediaserver/$PlexExecutable"
        patchelf \
          --set-rpath "$plexLibraryPath:$out/lib/plexmediaserver" \
          "$out/lib/plexmediaserver/$PlexExecutable"
      done
  
      for PlexLibrary in "''${PlexLibraryList[@]}" ; do
        patchelf \
          --set-rpath "$plexLibraryPath:$out/lib/plexmediaserver" \
          "$out/lib/plexmediaserver/$PlexLibrary"
      done
    '' + ''
  
negative.code:         --set 'PLEX_MEDIA_SERVER_MAX_PLUGIN_PROCS' \
            '"''${PLEX_MEDIA_SERVER_MAX_PLUGIN_PROCS:-6}"' \
          --set 'PLEX_MEDIA_SERVER_TMPDIR' '"/tmp/plex"' \
          --prefix 'LD_LIBRARY_PATH' : "${libraryPath}:$out/lib"
          # --run "
          #   if [ ! -d \"\$PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR/.skeleton\" ] ; then
          #     for db in 'com.plexapp.plugins.library.db' ; do
  