It's used at build time in 40 crates (of which 28 optionally, 3 directly). It's used only as a dev dependency in 3 crates.

Depender (with downloads and own rev deps) cuda-config version
48K 5 cuda-driver-sys build ^0.1.0
43K 5 cuda-runtime-sys build ^0.1.0
3.8K autd3-backend-cuda build ^0.1.0