ark-ed-on-bls12-381 is used at run time in 4 crates. It's used only as a dev dependency in 3 crates.

Depender (with downloads and own rev deps) ark-ed-on-bls12-381 version
9.3K 7 ark-crypto-primitives dev ^0.3.0
1.0K 7 ark-poly-commit dev ^0.3.0
300 2 arkworks-gadgets ^0.3.0
270 3 arkworks-utils ^0.3.0
250 1 arkworks-circuits ^0.3.0
arkworks-benchmarks ^0.3.0
bandersnatch dev ^0.3.0