Scheme name as a build time environment variable

Is there any way to configure the Xcode project to set the name of the scheme as a build time environment variable? Or some way to pull a value from some configuration file associated with the scheme?

I need to configure the project so the scheme name is retrievable from a build phase script. I don't have the luxury of using the Xcode interface as I am writing a CLI command that configures the user's project.

I've already looked at Xcode build settings environment variables:
https://developer.apple.com/documentation/xcode/build-settings-reference

There doesn't appear to be any specific scheme configuration file to get the name.

I thought the [EnvironmentVariables](https://www.rubydoc.info/gems/xcodeproj/Xcodeproj/XCScheme/EnvironmentVariables) solved this problem but it appears it is for the run-time, not for build settings.

Any suggestions would be greatly appreciated! Thanks.

Start with the Xcode build settings reference and the XCScheme::EnvironmentVariables entry point mentioned in the issue. Determine whether scheme configuration can expose its name to a build-phase script without relying on the Xcode interface, and document or implement the supported approach for the CLI use case.

Written by the indexing model from the issue text.