I think if we had thought about this holistically with dynamic workflow versioning, we'd have one solution to customize workflow implementation options at runtime. As of now there is one way for spring, one way for dynamic workflows for only one option, and no way for non-spring, non-dynamic.

This is not related to runtime customization

This is for customizing workflow implementation options per workflow type at registration time, the Java SDK already supports this, this is just aligning spring boot with the regular Java SDK

Spring is not getting any special functionality

I think there could be an overlap to "customize options by workflow type" whether that workflow type is known at registration time or runtime (though runtime obviously gives you more info than workflow type, so not that much overlap).

Yeah the point is this PR adds registration time customization for Spring which we already have for the Java SDK