# NERVE + HEART — checkpoint converter
Upload a **NERVE** or **HEART** `.safetensors` checkpoint (e.g. one you
trained) and download a deployment file. The architecture is auto-detected.
Runs on CPU, nothing to install.
- **ONNX** — dynamic or static shape, fp32 or fp16 (both networks)
- **ncnn** — fp16 for mobile (**NERVE only**; HEART's attention ops don't convert)