ShardTree is used at run time in 5 crates (of which 2 optionally). It is a direct run-time dependency in 2 crates. It's used only as a dev dependency in 2 crates.

Depender (with downloads and own rev deps) ShardTree version
3.6K 4 zcash_client_backend ^0.6.1
260 zcash_client_sqlite ^0.6.1
16K 9 orchard dev ^0.6
300 1 pczt dev ^0.6.1