From hand-built units onto gradual mass production.
Steam Deck developer Pierre-Loup Griffais revealed a series of working prototypes designed before the final version. The team turned the design lab into "a showroom of development history" as part of the Asia launch press event. The photos show a bootable Deck family tree "from mid-2019 to now, from a couple of hand-built units onto gradual mass production."
Some prototypes have different colors, sizes, smaller buttons, various thumbstick shapes and D-pads, and more.
Pierre-Loup Griffais said they mostly still boot, "serving as an exciting reminder of how far things have come since." He showed one with Picasso APU, at about half of the GPU power of the final Deck. "The flatter ergo was an interesting experiment and taught us a ton about comfort."