To use the model 
`pip install piper-tts`

and download these:

https://huggingface.co/samarthshrivas/piper-finetune-Andrew-Huberman/blob/main/lightning_logs/version_2/checkpoints/epoch%3D2609-step%3D1364440.onnx

https://huggingface.co/samarthshrivas/piper-finetune-Andrew-Huberman/blob/main/lightning_logs/version_2/checkpoints/epoch%3D2609-step%3D1364440.onnx.json