<p>This is a Raspberry Pi Pico W with a really interesting peripheral kit. You weave 64 bits of magnetic core memory with some provided magnet wire and ferrite cores, and then there’s a ROM for the Pico that gives you fun stuff to do with the memory and some programmable LEDs beneath it. It’s real weird and I had a ton of fun putting it together and poking at it with the magnetic stylus.</p>