ssmarshal is used at run time in 36 crates (of which 11 optionally). It is a direct run-time dependency in 12 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
13K 18 usbd-hid ^1.0
12K 15 embassy-usb optional ^1.0
700 mini-rxtx ^1.0
2.5K 6 postcard-rpc optional ^1.0
190 rktk-drivers-nrf ^1.0.0
180 rmk ^1.0
framed ^1.0
1 dw1000 ^1.0.0
dw3000 ^1.0.0
bandsocks-runtime ^1.0.0
rktk-rrp-client-webhid ^1.0.0
110 lokey optional ^1.0.0
1.4K 4 littlefs2 dev ^1