Valve once imagined that every PC maker could have their own “Steam Machine,” a PC game console running the company’s Linux-based SteamOS. It took a decade for that dream to evolve into the company’s own internally developed Steam Deck gaming handheld, but the original dream isn’t dead.

The company’s long said it plans to let other companies use SteamOS, too — and that means explicitly supporting the rival Asus ROG Ally gaming handheld, Valve designer Lawrence Yang now confirms to The…