I'm trying to create an Unlocked Package that includes an External Client App. Below is how my app looks in Dev Hub Org:

When I try to create a package I can only add ExternalClientApplication and ExtlClntAppOauthSettings. If I try to add any other metadata about the APP I get an error when trying to create a package. If I install the package with only this files in any , the package is not editable and I cannot edit the OAuth Policies and enable the Client Credentials Flow, and I cannot see and get the consumer key and consumer secret. My end goal is to install the package with all the settings in any and only set the Run As User so I can get an Access Token using the Client Key and Client Secret.

Thank you.