zip32 is used at run time in 20 crates. It is a direct run-time dependency in 6 crates.

Depender (with downloads and own rev deps) zip32 version
12K 8 orchard ^0.1
9.2K 9 sapling-crypto ^0.1
6.9K 15 zcash_primitives ^0.1.1
2.2K 3 zcash_keys ^0.1.1
700 4 zcash_client_backend ^0.1.1
550 zcash_client_sqlite ^0.1.1