This is a coaster with an infill pattern that is printed with two color filaments.

Please print the 1st.3mf followed by the 2nd.3mf.
Edit the start gcode and end gcode to fully internalize and print the second color.

Do not turn off the heater and motor in the 1st end gcode and do not use g28 and g29 in the 2nd start gcode.
For the 2nd, set Lift Z to 2 mm so that the nozzle does not hit the already printed model.

Change the filament once in M600 to a different color, then change the filament again to the original color before printing the 2nd.
After the first print, eliminate the skirt and the small square model before printing the second print.

The small square model is for positioning the coaster model and adjusting the nozzle height.

I don't have a prusa mini so sorry if it doesn't work.