FlagSet is used at run time in 180 crates (of which 32 optionally). It is a direct run-time dependency in 19 crates. It's used at build time in 3 crates (of which 3 optionally, ). It's used only as a dev dependency in 7 crates.

Depender (with downloads and own rev deps) FlagSet version
3.1M 69 der optional ^0.4.3
70K 27 opendal ^0.4
30K 4 wasm-smith ^0.4
500 3 stardust-xr-fusion ^0.4.3
340 pyodide-webassembly-runtime-layer ^0.4.5
270 datamatrix ^0.4
160 1 openrgb ^0.4.3
100 5 fervid_core ^0.4.3
1 diskio ^0.4.3
zxing-cpp ^0.4.4
2 fervid_codegen ^0.4.3
1 manas_repo_opendal ^0.4.3
embedded-bacnet ^0.4.3
2 manas_server ^0.4.3
transvoxel ^0.4
3 rrm_locals ^0.4.3
1 rrm_scrap ^0.4.3
simple-irc-server ^0.4
210 3 malwaredb-types optional ^0.4.5