Cool little library for using a Raspberry Pi Pico and 2 high-speed DAC's for drawing vector and raster graphics on an oscilloscope CRT. Thoroughly frivolous, but also highly entertaining! ;]

Also check out the examples at https://github.com/OliWright/PicoVectorscopeExamples and the accompanying video at https://www.youtube.com/watch?v=BEgRV6VHzgg