Mocking gRPC and eCAL support

I’ve read and watched Automatic Mock Servers for gRPC | Postman Level Up - YouTube. I haven’t used Postman’s mocking before, so is the server always present when Postman is running, or does the Collection tab have to be open?

I’m also wondering if it’s possible to support other formats that use Google Protobuf, like Eclipse eCAL:
If I wanted to investigate this is the source code for this functionality of Postman open source?

Reply to my question on the video:

The mock server is available to be used in other applications, since it’s running on Postman servers (in the cloud), and not running on your local instance of Postman.

so that’s obvious!

Logged a feature request for this: Mock APIs based on Eclipse eCAL from Protobuf · Issue #12030 · postmanlabs/postman-app-support · GitHub