tectonic_bridge_flate is used at run time in 21 crates (of which 6 optionally). It is a direct run-time dependency in 2 crates.

Depender (with downloads and own rev deps) tectonic_bridge_flate version
550 1 tectonic_engine_xetex >=0.1.1, <1
550 2 tectonic_pdf_io >=0.1.1, <1