DIY + Unusual Gear Modular-Analog Music tech Tech

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.

Basil stereo delay completes Bastl’s PIZZA trio on VCV Rack — all for free

The freeware VCV Rack ports of Bastl’s delicious PIZZA family now include the original Pizza oscillator, Crust drum/percussive voice, and Basil stereo delay. Endless patching pleasures await with these (and don’t forget the free and open source KOMPAS “probability navigator,” too).

Peter Kirn - February 22, 2026

Modular-Analog Music tech Software Tech

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OB-Xf, free and open-source Oberheim-inspired synth, is now in beta

Here’s a good way to start 2026: the folks at Surge Synth Team now have their free and open-source OB-Xf synth in beta status in nightlies, with 1.0 just around the corner. And that means this long-running project is just about ready for primetime, bringing a fully open instrument inspired by the 1979 Oberheim OB-X. […]