Coi is used at run time in 3 crates. It's used only as a dev dependency in 2 crates.

Depender (with downloads and own rev deps) Coi version
200 twelve_service ^0.10.3
1 coi-actix-web ^0.10.1
coi-rocket ^0.10.3
1 coi-actix-web-derive dev ^0.10.1
1 coi-rocket-derive dev ^0.10.3