Anne is the stream's IT. Special hardware and software for stream is chosen, acquired, and set up by her (initially, after which it may be messed up by Hydro or David).
When Hydro wants to play retro games, she often sets the consoles up inside of cardboard boxes with labels scrawled on them in marker and Hydro takes her word that there is original hardware inside.
In reference to controller issues with Metroid Prime 2, Hydro described the controllers “just working” in Anne's hand when she helped him troubleshoot (a common IT experience) and how golden light ran down her arms into the Wii remotes.