I am unable to publish several of my design as I can’t find open source licenses out of CC. Note that licenses like GPLv3 which is widely used forces to publish a design with the same license. For example, all parts derived from original Prusa printers are under GPLv3 and can’t be published on your site. Some other license such as GPLv2, Cern OHL, MIT could be interesting to add as well.
Note that CC licenses are more for artistic design and not really good for true open source functional designs.
Thank you in advance!