Thank you so much for your quick response! Though I haven't tried the suggested solutions yet, let me answer your below question first. Responded as a new comment below due to character limits ;)

Sorry for my belated response! I successfully loaded my first kernel extension by disabling SIP. As I mentioned in the following comment, I won't plan to distribute this, hence this is enough for me for now. Thank you again for your detailed, and kind support :)

First, thank you again for your quick response! According to your clarification, I understand well that my approach must come to a dead end. I need to look for another way to achieve it. Anyway, I'll keep learning KPIs for my curiosity within the scope that Apple officially supports. I don't want to break anything, just want to contribute growing software ecosystem surrounding Apple software. Again, I really appreciate you sharing your valuable and considerable thoughts on this topic :)