Idea is used at run time in 76 crates (of which 20 optionally). It is a direct run-time dependency in 4 crates. It's used only as a dev dependency in 2 crates.

Depender (with downloads and own rev deps) Idea version
100K 41 pgp ^0.5
33K 68 sequoia-openpgp optional ^0.5
vpgp ^0.5
cmail-rpgp ^0.5