              The backend configuration in use by Faceswap
          """
          print("First time configuration. Please select the required backend")
          while True:
              selection = input("1: AMD, 2: CPU, 3: NVIDIA, 4: Apple Silicon: ")
              if selection not in ("1", "2", "3", "4"):
                  print(f"'{selection}' is not a valid selection. Please try again")
                  continue
              break
          fs_backend = self._backends[selection].lower()
 
</s> remove         elif self.enable_apple:
            backend = "apple_silicon"
 </s> add  </s> remove         activate_script = os.path.join(conda_prefix, activate_folder, f"env_vars.sh")
        deactivate_script = os.path.join(conda_prefix, deactivate_folder, f"env_vars.sh")
 </s> add         activate_script = os.path.join(conda_prefix, activate_folder, "env_vars.sh")
        deactivate_script = os.path.join(conda_prefix, deactivate_folder, "env_vars.sh") </s> remove     - ffmpy==0.2.3 </s> add 
            selection = input("1: AMD, 2: CPU, 3: NVIDIA, 4: APPLE SILICON: ")
              The backend configuration in use by Faceswap
          """
          print("First time configuration. Please select the required backend")
          while True:
            selection = input("1: AMD, 2: CPU, 3: NVIDIA, 4: APPLE SILICON: ")
              if selection not in ("1", "2", "3", "4"):
                  print(f"'{selection}' is not a valid selection. Please try again")
                  continue
              break
          fs_backend = self._backends[selection].lower()
keep keep keep keep replace keep keep keep keep keep
 minor cleanup
- Consistent naming for backend selection
- Remove apple-silicon from setup.py (not yet implemented) 
lib/utils.py