dadamachines tbd 16: a groovebox that’s compact, capable, and open by design

tbd 16 does everything the other standalone grooveboxes do, but in a handheld form factor, built as an open platform that you’re free to customize, mod, and hack. Choose the engines and apps you want to use. And get them all on a compact, standalone device that rivals big-name competitors in a fraction of the […]

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.

Peter Kirn - March 12, 2026

Michigan Synth Works has an open-source 303 processor and a new kit

Call it the Bride of x0xb0x. Michigan Synth Works today teased a new, Arduino-compatible, open-source 303 processor, plus a full DIY kit. They’re both affordable ways to build your own all-analog, modern TB-303 with current components. And it feels like the early spirit of the open x0xb0x is back. The x0xb0x is the device that […]

Peter Kirn - March 3, 2026

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

Peter Kirn - February 22, 2026

Cosmolab, open DSP development kit, in final hours of crowdfunding

Peter Kirn - January 29, 2026

Bastl’s Kastle 2 and Citadel Eurorack are now DIY kits, open source platforms

Peter Kirn - January 21, 2026

Etsuko’s Eterna for monome norns, an elegant 6-voice slice instrument

Peter Kirn - December 26, 2025

Ornament & Crime, open module, gets new powers in Phazerville 1.7

Peter Kirn - February 20, 2024

What if modular cases were also modular? Geert’s 3D-printed solution

Peter Kirn - September 4, 2023