A very quick one today,quickest ever, a passive attenuator/mixer from Zlob. Since it’s passive (no power) it’s just some jacks, pots, and three resistors.
Works as you would expect, controls the voltage of the signal, you can pick up each signal or get the sum. Since it’s passive there is some signal loss.
This would be a very handy unit if you’re really squeezed for power in your portable rack, say, since it just takes space, no milliamps.

Fine build. Good first build if you want to get used to soldering eurorack modules.