standalone watchOs app need to distribute it?

Hi,
I have a standalone watchOs app for apple watch, I made an export IPA for this app and I need to distribute it to the test team on a platform like app center or use another app to install this IPA on apple watch?
TestFlight supports watch-only apps.

But what's the secret sauce in uploading? I only get the option to export the IPA to a file.

standalone watchOs app need to distribute it?
 
 
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