Just to echo this, I’m currently using a crate called deku (for a toy project to learn rust). Deku is a wrapper on top of bitvec which lets you annotate structs

Just to echo this, I’m currently using a crate called deku (for a toy project to learn rust). Deku is a wrapper on top of bitvec which lets you annotate structs and enums for decoding and encoding. The speed I was able to implement a binary TCPStream encoder/decoder was great. Both have been rock solid for me. Highly recommend both libraries!