ssmarshal is used at run time in 30 crates (of which 9 optionally). It is a direct run-time dependency in 9 crates. It's used only as a dev dependency in 8 crates (of which 1 directly).

Depender (with downloads and own rev deps) ssmarshal version
5.4K 13 usbd-hid ^1.0
7.4K 10 embassy-usb optional ^1.0
700 mini-rxtx ^1.0
2.4K 4 postcard-rpc optional ^1.0
360 2 rmk ^1.0
1 dw1000 ^1.0.0
framed ^1.0
bandsocks-runtime ^1.0.0
dw3000 ^1.0.0
440 4 littlefs2 dev ^1