Game Boy custom hardware: GB-CART32K-A cartridge
Made by Joonas Javanainen (Gekkio).
Source: https://github.com/Gekkio/gb-hardware, commit b5ade559bd988fd6c4f5941615d4d6d79dec9098
License: CC-BY-4.0
Credit: Game Boy hardware designs by Joonas Javanainen (Gekkio), CC BY 4.0. Source: https://github.com/Gekkio/gb-hardware. Do not remove the original creator's name.

Design file: GB-CART32K-A.kicad_pcb (KiCad, kicad_pcb version 20221018). The makers' own file, unmodified.
Schematic: GB-BRK-CART.pdf.
License texts in this folder: LICENSE.

This design file is licensed by its makers under the license named above, separately from Boardr. You may copy, share and adapt it under that license.