Open-firmware Arduino trigger & clock module for Eurorack — 2 in, 6 outs, hackable by design.

2-channel Eurorack attenuverter with DC offset and manual voltage source mode — 2HP 

2 manual gates + a bipolar/unipolar CV fader with LED readout — hands-on performance control in 2HP.

Active 4HP cooling fan for Eurorack - low-noise, current-regulated airflow for hot racks and long gigs.

4-channel performance mixer with LED faders and vactrol mutes — link multiple units for bigger mixes.

3-channel CV/audio mixer in 2HP, DC-coupled option, expandable by linking units.

8-header passive power distribution board for Eurorack — compact and DIY-friendly.

Passive multiples 2×4 / 1×7 for splitting gates, triggers, CV, or audio — 2HP, zero power draw. 

2HP preamp for bringing guitar pedals, mics, piezos, or line-level gear into Eurorack — dual buffered outs.

12HP distortion module with diode clipper and transistor stage — guitar-pedal grit for your rack.

A/B switch meets passive multiple — pcb bus configurable routing for CV/audio, 4HP.