Cupid is used at run time in 3 crates (of which 3 optionally). It is a direct run-time dependency in 1 crate. It's used only as a dev dependency in 2 crates.

Depender (with downloads and own rev deps) Cupid version
2 cosmian_crypto_base ^0.6
1.2K 43 core_detect dev ^0.6
140 1 notstd_detect dev ^0.6.0