meson_options.txt

option(
  'profile',
  type: 'combo',
  choices: [
    'default',
    'development',
  ],
  value: 'default',
  description: 'The build profile for Pipeline. One of "default" or "development".'
)

option(
  'flatpak',
  type: 'combo',
  choices: [
    'true',
    'false',
  ],
  value: 'false',
  description: 'Is the build a flatpak build. One of "true" or "false".'
)