tuplex is used at run time in 389 crates (of which 17 optionally). It is a direct run-time dependency in 5 crates. It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) tuplex version
385K 530 sp-runtime ^0.1.2
118K 4 bridge-runtime-common ^0.1
3 tcl ^0.1
1 heredom ^0.1
1 tk ^0.1