wolfram-expr is used at run time in 8 crates (of which 4 optionally). It is a direct run-time dependency in 5 crates.

Depender (with downloads and own rev deps) wolfram-expr version
2 wstp ^0.1.4
2 wolfram-library-link ^0.1.0
md2nb ^0.1.1
graphics-style optional ^0.1.1
9 shape-core optional ^0.1.4