from the website:
DIY eurorack CLK / RST generator for Ableton LINK
After Ableton released the source code /SDK for, applications and devices that use it quickly started to appear.
The pink SPINK0 is a patchwork from shaduzlabs pink-0, a CLK / RESET generator based on the Rasperry Pi Zero W. His source code is the core of this project. After a lot of tweakin, tuning & changing, a working LINK connection could be established. I then squeezed the PiZero into its new dress, consisting of a set of three PCBs that all sandwich together to form a eurorack module.
Kit: $37 US (approx after exchange) includes shipping