git clone https://github.com/neurlang/piper-rs
cd piper-rs
wget https://huggingface.co/neurlang/piper-onnx-kss-korean/resolve/main/piper-kss-korean.onnx?download=true -O piper-kss-korean.onnx
wget https://huggingface.co/neurlang/piper-onnx-kss-korean/raw/main/piper-kss-korean.onnx.json -O piper-kss-korean.onnx.json
git submodule update --init
cargo run --example interactive piper-kss-korean.onnx.json  80

Example run

Ready. Type lines (one utterance per line). Ctrl-D (Unix) / Ctrl-Z (Windows) to finish.
안녕하세요 세상 
Done.