Getting any eu compliant panel to talk to a non graded system isnt currently doable out of the box. You can obviously use relays and such like but not ideal. I use home assistant with my hkc system but there is no way id allow home assistant to control the set status only to view or for logic etc.
You could probably get the events via 232 printer but ive not investigated that yet
a couple of things things leap out
&
assuming you in the UK (c) if your insurance requires dual path signalling, normal practice is NSI/ SSAIB installer, proper graded signalling to a NSI / SSAIB ARC, their is often a requirement for a Police URN
This is different from Home automation shite (a) & an unapproved ARC in North Yorkshire (b) ?