https://www.libretro.com/index.php/reicast-libretro-now-supports-online-multiplayer-zero-configuration-online-dreamcast-gaming-for-the-first-time-ever/
Awesome, I loved Reicast back when it was new and impressed that I could play PSO on my ouya at like 90% speed, giving it online access is great!
I was going to write a manifesto of where I think Dreamcast emulation should head towards, and this was number one on the list. Next on the list was to integrate wii remote and dolphin bar support to emulate motion controllers like the fishing rod and samba de amigo maraccas. With a little work, you can already get the wii remote and dolphin bar working as a light gun substitute for HotD2 and Confidential Mission.