Silicon Medley
Silicon Medley is a fanon/derivative universe of OS-tan created by Rizzonen around July 2020, predating UNIVER.SYS by 3 years.
Down With The Canon
Rizzonen, then SpacePuffer or Pufferworks, had been interested in the OS-tan phenomenon and the gijinka trend for years. They, however, they grew disillusioned of how the English-speaking OS-tan fandom codified a canon that determined how OS-tans should be portrayed, and how alternative takes weren't considered valid. Moreover, certain OS-tans were reduced to background roles or killed off in the narrative in accordance to real-life history and obsolescence, which Rizzonen considered a wasted opportunity.
Around late 2019 until 2020, Rizzonen also took interest in Silicon Valley history and the microcomputer boom in the 1970s. It was when they came up with the idea of a fanon that highlighted the OS-tans representing the early personal computers, instead of sidelining them. They named this universe Silicon Medley.