Best Practices for environments and deployment?

Is there a posting or video that goes over the best way to manage versioning and deployment? If not, this would be valuable to the community. I'm particularly interested in the following:
* How to manage different environment variables between test and production
* How to set up a different set of endpoints for test and production. e.g. dev.api.myapp.com for dev and api.myapp.com for production
* How to most effectively develop, test and deploy code changes using Xano's tools
* Best practices for save points or version control

Any resources on this stuff will be appreciated.