jfu-1.0.x-dev/modules/jfu_usage/jfu_usage.routing.yml

jfu_usage.settings:
  path: '/jfu-usage/settings'
  defaults:
    _title: 'Jfu usage settings'
    _form: '\Drupal\jfu_usage\Form\JfuUsageSettingsForm'
  requirements:
    _permission: 'jfu usage review'
  options:
    _admin_route: TRUE

jfu_usage.components:
  path: '/admin/structure/jfu-usage/components'
  defaults:
    _controller: '\Drupal\jfu_usage\Controller\JfuUsageController::list'
    _title: 'JFU usage components'
  requirements:
    _permission: 'jfu usage review'
  options:
    _admin_route: TRUE

jfu_usage.component_use:
  path: '/admin/structure/jfu-usage/components/{component_type}/{entity_type}/{field_machine_name}'
  defaults:
    _controller: '\Drupal\jfu_usage\Controller\JfuUsageController::componentUse'
    _title: 'Component use'
  requirements:
    _permission: 'jfu usage review'
  options:
    _admin_route: TRUE