wayfinding-2.1.x-dev/modules/digital_signage/wayfinding_digital_signage.routing.yml

wayfinding_digital_signage.device:
  path: '/wayfinding/{digital_signage_device}'
  defaults:
    _controller: 'Drupal\wayfinding_digital_signage\Controller\Device::requestDevice'
  requirements:
    _custom_access: 'Drupal\wayfinding_digital_signage\Controller\Device::accessDevice'
    digital_signage_device: \d+
wayfinding_digital_signage.device.extid:
  path: '/wayfinding/ext/{id}'
  defaults:
    _controller: 'Drupal\wayfinding_digital_signage\Controller\Device::requestExtDevice'
  requirements:
    _custom_access: 'Drupal\wayfinding_digital_signage\Controller\Device::accessExtDevice'