Joint talk will discuss a project which split to work on the C# implementation of Nethermind's libp2p, where we implemented the TLS protocol, upgraded the Noise protocol, and added the Perf protocol. Although the first version of the C# implementation isn’t released yet, it is integrated with Gnosis Chain’s Shutter node. Second part of the talk focuses on new goland libp2p library for Prysm CL client