sdd is used at run time in 147 crates (of which 18 optionally). It is a direct run-time dependency in 3 crates. It's used only as a dev dependency in 446 crates.

Depender (with downloads and own rev deps) sdd version
3.8M 40 scc ^3.0
500 2 scc2 ^3.0
500 idr-ebr ^3