@Macross No, not really 😅
It’s a #KeyboardFeatherWing (@solderparty) connected to a #FeatherS2 (#unexpectedmaker ) … a small controller that run @circuitpython.
I need to try it with the #FeatherS3 😅
But yes, some old part of BlackBerry may be used for this keyboard 😇

About the QrCode it’s a link to this profile 😇 it’s pinned on my twitter for the ones that didn’t escaped it yet.