This repo contains the design files for the crossometer-mini device, an open hardware GPS/altimeter/variometer using the crossometer-firmware.
Provided are the Kicad files for the PCB and the Freecad files for the enclosure and clip.
Taking a look at open issues may be a good idea if you intent do build a crossometer-mini for yourself.
Have a look at the releases page to get gerber files and STLs.
crossometer-mini is licenced under the CERN Open Hardware Licence Version 2 - Strongly Reciprocal