Available as an assembled Module and as a DIY project.
This Module is currently available.
Dual Channel Oscilloscope
2-channel Eurorack oscilloscope, frequency meter and tuner in 6hp. Single, dual and X-Y modes. timebase: 10us – 10s per division, voltage range: 0.5V – 5V per division. frequency meter and chromatic tuner with +/-50 cent offset range
more here: https://www.muffwiggler.com/forum/viewtopic.php?t=157649
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These merchants probably sell this module. Huh?