      - matplotlib>=3.2.0,<3.3.0
      - imageio>=2.9.0
      - imageio-ffmpeg>=0.4.7
      - ffmpy==0.2.3
 
</s> remove     - ffmpy==0.2.3 </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         elif self.enable_apple:
            backend = "apple_silicon"
 </s> add  </s> remove             selection = input("1: AMD, 2: CPU, 3: NVIDIA, 4: Apple Silicon: ")
 </s> add             selection = input("1: AMD, 2: CPU, 3: NVIDIA, 4: APPLE SILICON: ")
    - ffmpy==0.2.3
      - matplotlib>=3.2.0,<3.3.0
      - imageio>=2.9.0
      - imageio-ffmpeg>=0.4.7
      - ffmpy==0.2.3
    - ffmpy==0.2.3
keep keep keep add
 minor cleanup
- Consistent naming for backend selection
- Remove apple-silicon from setup.py (not yet implemented) 
conda-environment-apple-silicon.yml