Decided to make a separate project. Added registration of multiple implementations, or specific implementations with LifetimeManagement management (for Unity).

The fun is that this approach covers all work with container.

Also, if you need to register types from any other assembly with registrations with attributes — simply call RegisterFromAnotherAssembly.

If you want to use different implementations depend on build type - use preprocessor directives.

No more problems with importing types from another assemblies and so on. By design :).

Just add attributes.

Add a TypeRegistrationAttribute to the base entity whose implementations you want to register in the container.

Add DerivedTypeRegistrationAttribute to the implementation to override LifetimeManagement.

Specify LifetimeManagementType.

Call UnityCommonRegistration.Register(container).

Call RegisterFromAnotherAssembly to register types with registration with attributes from another assembly.

Made your own CommonRegistration.

override 3 methods - registerInContainer, registerManyInContainer.

Write your own mapping for LifetimeManagementType.