Sparrow Wallet Runs on $40 Handheld Game Console in Working Proof of Concept

This is less about the console itself than about the shrinking hardware floor for self-custody tooling. A device with two microSD slots, a camera and a virtual keyboard is functionally close to what air-gapped signing setups already use, at a fraction of the cost of dedicated hardware wallets — and the same developer having already ported SeedSigner to it suggests a repeatable pattern rather than a one-off stunt. The audience is technically inclined bitcoiners who already build their own signers. Whether Sparrow's desktop-grade interface survives on such constrained hardware, and whether anyone hardens this beyond a proof of concept, is the open question.