github.com/xtaci/kcp-go/v5 (go): Package kcp-go is a Reliable-UDP library for golang.  This library intents to provide a smooth, resilient, ordered, error-checked and anonymous delivery of streams over UDP packets.  The interfaces of this package aims to be compatible with net.Conn in standard library, but offers powerful features for advanced users.
Keywords: arq|cryptography|kcp|reedsolomon|udp