Xbox Series X/S storage expansion card to M.2 NGFF NVMe SSD adapter. Well, maybe.

The connector the X/S use is CFexpress-adjacent - I have no idea if this will even begin to work, but, YOLO?

• cfxsx contains the main schematics and board drawing
• cfxsx/PCIexpress.pretty contains the board-specific footprints
• cfxsx/PCIexpress.3dshapes contains the 3D models for parts on the board (and a bunch of extras from my various experiments)

Simply call make in the top-top level directory. The build directory will then contain:

• the main board
• zipped gerbers for the boards you can directly use for manufacturing
• zipped gerbers and SMT assembly BOM/position files for JLCPCB's SMT assembly service for the single-board version.

Makefile uses Jan Mrázek's KiKit, which I cannot recommend enough, and therefore has to be available on your system.

Jan's jlcparts app was also extremely useful in narrowing down part choices based on what JLCPCB have available.