fastobo is used at run time in 5 crates (of which 1 optionally).

Depender (with downloads and own rev deps) fastobo version
700 viguno ^0.15.2
280 dihardts_omicstools ^0.15.2
fastobo-owl ^0.15.4
fastobo-validator ^0.15.0
1 fastobo-graphs optional ^0.15.3