The latter.

Agree with others hence my purchase last night 🙁 I thought it would transfer over to ATV – not to have another device separate.
Now understand why no web article or YouTube have a solution.
Wil cancel subscription.

Agree with Soren above; the article gave the impression (certainly to me, anyway) that ATV users could take advantage of Sauce as a HUD. I’ve spent weeks trying to tweak and understand why I couldn’t see the overlays on my ATV; having it setup on a second device next to ATV doesn’t really scratch the itch – might as well use a single PC/Mac for both.

Top, understood! Thank you

I run my Apple TV signal through an Elgato capture card, which runs to my PC that is running OBS.

I have an Elgato HD60 S+, but the newer HD60 X is much cheaper and even more capable: https://amzn.to/3vdBzrw

(My webcam and mic are also wired directly to the PC, BTW…)

In other computer games it’s called ‘ghosting’ and it’s generally frowned upon.

On the legal side, all anyone (say an insurance provider, or a consultancy in a favourable jurisdiction that provides confidential advice to insurance companies) has to do is monitor the data that Sauce is scraping (e.g. via a side-channel) and they will have records on . Sauce is ‘legitimate’ traffic so this is the safest course to go undetected, but it would also be easy enough to use, for example, a bot like ZI uses to test routes to just patrol Zwift roads 24/7 and get data on all users. There are other ways too. Sauce makes them all easier and more legitimate.

So they could get ideas about how stressed anyone’s cardio/weight/strength etc etc is at any time or their weight or how things have changed over time. They could look for alarming patterns in HR changes.

This can be tied to Strava searches to find individual names easily enough. Plus if Zwift ever has a data leak showing usernames to actual names (or, say, credit card information as is more common) then any historical DB kept could be populated with that at will. So insurance companies or whoever would have a ‘score’ tied to your name you don’t know about in case they ever wanted to deny you coverage in the first place or raise your rates. If they are prepared to open the secret they could also retrospectively use it to contest/avoid paying out.

Nothing technically preventing any of that and it’s potentially a lot of money. So rest assured, it’s being done by someone.

Thanks Eric!