tectonic_bridge_harfbuzz is used at run time in 20 crates (of which 6 optionally). It is a direct run-time dependency in 2 crates.

Depender (with downloads and own rev deps) tectonic_bridge_harfbuzz version
490 1 tectonic_engine_xetex >=0.2.0, <1
470 2 tectonic_xetex_layout >=0.2.0, <1