looking-glass is used at run time in 3 crates (of which 2 optionally). It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) looking-glass version
130 looking-glass-protobuf ^0.1.0
2 m10-protos optional ^0.1.1
m10-sdk-protos optional ^0.1.1
330 3 looking-glass-derive dev ^0.1.0