It's used at build time in 10 crates (of which 5 optionally, 4 directly).

Depender (with downloads and own rev deps) zenu-cuda-config version
130 1 zenu-cudnn-sys build ^0.1.0
130 1 zenu-cublas-sys build ^0.1.0
130 1 zenu-cuda-runtime-sys build ^0.1.0
130 1 zenu-cuda-driver-sys build ^0.1.0