Sitka’s excellent Gravity clock Eurorack module is now open source

Kyiv-based Sitka Instruments is making the awesome Gravity Eurorack clock module open-source hardware. It’s an easy and affordable build, and there are already cool alternate firmwares available, with more to come. Sitka is supporting the community — and you can give back by supporting Ukrainian causes.

Inside Kyiv’s hackerspace, a growing DIY synth and experimental noise scene

Despite bombing, drone attacks, and sleepless nights, Kyiv continues to support a burgeoning experimentalism in sound, driven by an appetite for noise and engineering. And it’s bringing more people into that community. Here’s a look inside.

Peter Kirn - October 16, 2025

UkrRack, the all-Ukrainian modular system in action, module details

It’s not just Eurorack. It’s UkRack – the all-Ukrainian module. And while today marks three years of full-scale Russian invasion of their country, it’s a chance to mark the power of Ukrainian resistance in sound. We join our friends at MachineRoom in Kyiv.

Peter Kirn - February 24, 2025

S.T.A.L.K.E.R. 2 game is full of Ukrainian music; here’s your guide

Peter Kirn - January 7, 2025

Coming soon from Kyiv: Sitka Gravity clock and trigger Eurorack module

Peter Kirn - August 14, 2023