Marlin is written in C and burned into a 3D printer’s flash memory. It does a lot. It receives G-code commands, interprets them, and translates them to meaningful actions on the hardware.
A Post Processing Script for Orca Slicer and Klipper 3D Printers. This Script is free and open source ... then limit the speed in the G-Code to reach the recommended flow rate for the temperature ...
In fact, when it comes to 3D printing in particular file sizes can get awfully large. Partly to address this, Prusa have proposed a new .bgcode binary G-code format. You can read the specification ...