AEM and Adobe Target integration using IMS configuration and Adobe I/O

Hi All, 

We are integrating AEM Cloud with Adobe Target using IMS cloud configuration and creating a project in Adobe I/O console to establish JWT connection. 

We have currently 4 environments - DEV, TEST, ACPT, PROD. If you have made this connection before, do you suggest to create 4 projects with respect to each environment in Adobe I/O to connect with Target API. This is to ensure that each environment has its own public/private key pair. What is the best practices around this?

Reference-  https://experienceleague.adobe.com/en/docs/experience-manager-65/content/sites/administering/integration/integration-target-ims