Hello @jam3 , I am not an expert like you and my comments are probably incomplete, but allow me to share a suggestion that I mentioned in idea 2 in another forum (https://forum.ewelink.cc/t/nspanel-pro-roadmap-and-co-created-future/206240/216) that may be helpful in this matter you are discussing.
From a complete lack of knowledge, would it be possible to create “virtual entities” (selectors, buttons or similar) that would serve as a bridge between the HA Alarm programming and the NSPP’s “Smart Security” module?
I do not know if it is possible or how it would be done technically, but if my idea is feasible, I believe it would be easy for the NSPP team to implement and would allow the NSPP modules to be managed from HA, and vice versa.