blueprints = custom_target(
  'blueprints',
  input: files(
    'play_queue.blp',
    'play_queue_song.blp',
    'playbar.blp',
    'setup.blp',
    'window.blp',
  ),
  output: [
    'play_queue.ui',
    'play_queue_song.ui',
    'playbar.ui',
    'setup.ui',
    'window.ui',
  ],
  command: [
    find_program('blueprint-compiler'),
    'batch-compile',
    '@OUTDIR@',
    '@CURRENT_SOURCE_DIR@',
    '@INPUT@',
  ],
)