As mentioned before, the sys/ folder contains all sorts of system files. The most important file is config.g. This file is executed on the start-up of the Duet Maestro board in order to configure the Promega settings. If you wanted to add a command to the start-up sequence, you should insert it in config.g. In the sys/ folder you will also notice a handful of other files with the machine prefix. These files are called from config.g with the
M98 command and they represent part of the start-up sequence. The sys/ folder is structured to indicate which files are recommended to be changed and which are not.