const_env is used at run time in 44 crates (of which 2 optionally). It is a direct run-time dependency in 8 crates. It's used only as a dev dependency in 2 crates.

Depender (with downloads and own rev deps) const_env version
9.2K 35 ink_env ^0.1
750 3 ex3-canister-constant ^0.1.2
370 7 ex3-canister-named-canisters ^0.1.2
210 ex3-canister-named-principals ^0.1.2
1 shoulda_core ^0.1.2
prinThor ^0.1
uai ^0.1.2
tinydancer ^0.1.2