How do scale, sleep, or runs get into Nova?

Goal

Connect Withings, Ultrahuman, or Strava in Nova and ask the avatar about the numbers.

Expert view. The switch is in How do I switch between Simple and Expert?
An account with the service. Withings and Strava need your own developer app, Ultrahuman a key. The steps are in the Nova Health guides.

Settings, Apps & services. Under Connected apps you find Withings, Ultrahuman, and Strava. Tap the row.
The card is the same as in Nova Health. Enter the credentials and connect, as in How do I connect Withings?, How do I connect Ultrahuman?, or How do I connect Strava?
Settings, Health, tab Health, card Active: tick Use Health in Nova. Without this box Nova fetches no numbers.
Measurements and credentials sit in a shared folder on this Mac that Nova Health uses too. What is already connected there also counts in Nova.
Ask the avatar about sleep, weight, or your last run. Nova fetches new numbers when the last ones are older.
Tab In the briefing, card Lines: turn Sleep, Steps, Weight, Recovery, and Training status on or off for the morning briefing.
Tab Privacy: Do not send Health numbers to cloud models. Nova then answers health questions only with a local model.

“How did I sleep this week?” — “What does the scale say today?”

Nova says Health is switched off: Use Health in Nova is not ticked.
With a cloud provider, Nova asks before the first health question with the card Send health data to a cloud model? Allow applies to that provider only. Only on this Mac answers locally, and without a local model not at all. Another provider asks again.
With Privacy Lock on, Nova fetches no new numbers. See How do I turn on Privacy Lock?
Oura, Polar, WHOOP, and intervals.icu are in the same list. In Nova Health they are a preview, see More sources (preview).
Apple Health and workout files have their own tabs on the Health page. The steps are in How do I read an Apple Health export? and How do I read workout files?

Checked with Nova-Assistant 0.8.21.