nfc-sys is used at run time in 6 crates. It is a direct run-time dependency in 4 crates.

Depender (with downloads and own rev deps) nfc-sys version
200 2 freefare-sys ^0.1.5
120 freefare ^0.1.5
1 gatekeeper-core ^0.1.5
1 nfc ^0.1.5