OpenFlops is an Open Hardware implementation of Gotek hardware. It is designed to run the FlashFloppy firmware.
Boards have the latest FlashFloppy firmware installed. Future firmware updates can be installed from USB flash drive.
I’ve modified the design slightly by replacing through hole electrolytic capacitors and crystal with SMD parts. I also added SWDIO-header for easy initial firmware installation with ST-LINK/V2. PCB Layout files with my modifications are available here.