derive-ex is used at run time in 11 crates. It is a direct run-time dependency in 5 crates.

Depender (with downloads and own rev deps) derive-ex version
330 1 lgbm ^0.1.8
280 1 text-grid ^0.1.7
150 4 slabmap ^0.1.8
sigmut ^0.1.8
3 rt-local ^0.1.4