; Pinephone:
<require-service <qmi-wwan "/dev/cdc-wdm0">>
<depends-on <qmi-wwan "/dev/cdc-wdm0"> <service-state <daemon eg25-manager> up>>
<daemon eg25-manager "eg25-manager">

; More generally:

? <user-setting <mobile-data-enabled>> [
  ? <user-setting <mobile-data-apn ?apn>> [
    ? <run-service <qmi-wwan ?dev>> [
      <require-service <daemon <qmi-wwan-manager $dev $apn>>>
      $log ! <log "-" { line: "starting wwan manager", dev: $dev, apn: $apn }>
    ]
  ]
]

? <run-service <daemon <qmi-wwan-manager ?dev ?apn>>> [
  <daemon <qmi-wwan-manager $dev $apn> ["/usr/lib/synit/qmi-wwan-manager" $dev $apn]>
]