I designed this Direct Drive mount/adapter for my  Ender 3, but it can be used on other  Creality 3D printers with similar X-carriage plate, and Original / Aluminium extruder or (CR-10S PRO style) Dual Geared extruder with: Small / Big coupler.
I tried to make the motor as close to the carriage center as possible, while making sure that the motor isn't sticking out too much, that would negatively affect the printing area.
Because of this, you won't lose printing space in any direction, so you can have full X, Y and Z motion without any restrictions. (e.g. 235, 235, 250 for  Ender 3)
It is mounted press fit onto the spacers of the V-Slot pulley wheels and sits on the X-carriage plate with a groove for extra stability.
You won't have to change anything to the printer or to the firmware to be able to use this mount.
But you will need an extension cable for the stepper motor, as the original cables are not long enough to cover the full range of motion.
It won't interfere with Hero Me Gen 4 (image, Gen 5?), or Bullseye…