I would like to request a way to get the current device's serial number or a similarly derived unique identifier.
My end-goal is for my game to use or hash this identifier locally to generate a QR code for the user to scan on a smartphone. Then the user would pay for an "unlock code" and then I'd verify the serial number offline on the Playdate device. Heiko's post here reminded me of KiezelPay which has a similar unlock mechanism but uses the paired device's network capability to verify over Wi-Fi.
Playdate has an unofficial/private Wi-Fi API and my goal is not to suggest that Panic make this an officially supported API for developers. (While, yes, it would be cool, from what I've seen it's definitely a larger ask.)