Nice work on SwiftR! I'm developing for macOS at the moment, client-side, which connects to an existing SignalR server. I'm just starting to incorporate your project. Your chat client works great on iOS, but I wanted to see it on macOS. So I forked your project and added a 'SwiftR Mac Client Demo' subproject and target... and it works great. It's 95% derived from your code, but with a Mac windowed UI of course. I committed it to my fork in case it may be helpful to you or anyone else. Thanks again for your efforts!