I happened across this impressive project https://youtu.be/F29vrvUwqS4?si=nMJReqeSyF1E4mJg&t=287
As part of it he’s designed some stepper drivers
Schematic https://github.com/peng-zhihui/Dummy-Robot/blob/main/1.Hardware/MotorDriver-42/Motor-42.pdf
Altium files (Open OK in Kicad7) https://github.com/peng-zhihui/Dummy-Robot/tree/main/1.Hardware
It seems the drivers only support CANbus control? So it may not be possible to run SimpleFOC on them?