I feel your pain. For people who have ZERO coding background, the Instrument Definition “programing” is daunting and foreign. I encourage Squarp (@Thibault_Squarp ) to expand their video series to include Instrument Definitions because this question comes up time and time again.
All that said, once you get the hang of it, they are not that difficult to program. You essentially take the Instrument Definition file (Instrument Definition Template) and configure it to your particular instrument following the instructions in the Hapax manual… EXACTLY (Instrument Definitions in the manual: Hapax Manual | Squarp instruments). You can do this!
Michael