negative_features.npy reusable and shareable?

[madgrizzle]

I'm using OpenVoiceOS and I've [finally] successfully built a custom wakeword ("hey floyd") with openWakeWord that works better than any previous wakeword system I've tried. I used your notebook code to produce it, but in the model section you describe using additional sources of negative data. Looking at the notebook code, it seems that once the embeddings are produced and saved to disk, the clips aren't used anymore. Am I correct that once you generate a "negative_features.npy" file, you can reuse it for all future trainings of models? Is it something that's shareable?