CrealityOfficial/CrealityPrint — reverse-engineered prompt

Build me an open source desktop 3D printing slicer for FDM printers, focused on Creality style printers. I want users to be able to prepare a model for printing, choose their printer, tune print settings with detailed controls, run auto calibration, and export the sliced result for printing.

Please include support for Klipper users, including object exclusion and arcs friendly output. Add options for sandwich wall order, meaning inner outer inner, and polyholes conversion for better hole accuracy. The app should feel like a real slicer, with a clear workflow for loading a model, choosing quality and material settings, previewing the sliced result, and saving the final print file.

Make it cross platform for Windows, Mac, and Linux if possible. Keep the interface friendly for normal 3D printer owners, not just experts, but still allow advanced settings when someone wants them. Look up current docs online if you need to.