This is nothing more than the Gerber files from PcDwarf's PiHat SFP "encoder" project, with the filenames changed so they are properly recognized by online PCB fabs such as OshPark, DirtyPCBs, PCBWay, JLCpcb, etc.
The files from the original all had the .gbr extension. I've renamed them following the OshPark and DirtyPCB recommendations, and added descriptions to the filenames.
If you are viewing this on Github, you will need to download a ZIP of these files to then upload to your service of choice. For your convenience, you can download the ZIP here.
For all other uses, please zip up the contents of this directory (but not the directory itself).
The files sfpflashV3_Tr-drills.xln and sfpflashV3_Tr-drills.drl are the same file.
DirtyPCBs wants the .drl extension while most others are happy with .xln.
As I (creator of this git repo) am not the author of the content of these CAD files, I cannot declare any license over them. Please see the original project or contact the original author for further license details.
The changes I have made to the filenames and all other files within this repo that are not from the original project are hereby licensed as CC BY-NC-SA 4.0.