The pins are connected in reverse on purpose. Beware of the trackpad and FFC orientation.
The build log can be found at https://beekeeb.com/cirque-trackpad-i2c-on-corne-keyboard/
This project is licensed under the CERN Open Hardware Licence Version 2 - Permissive (CERN-OHL-P v2). The KiCad symbols and footprints are external projects licensed under the Creative Commons CC-BY-SA 4.0 License.