Very nice, I'll say Continuity can absolutely be implemented fully on Linux though ! I think the thing we'd need very first is an actual communication "backbone" that would span bluetooth,wifi-direct and even mesh networks like Tailscale or smth. Continuity is partly based on AWDL, Apple proprietary implementation of Wifi-Direct to allow high speed local inter device communication and allow things like Sidecar with an iPad. Then we could implement protocols over that backbone to implement actual useful applications.