I’m using openhab to connect to the NX-586E and map the output to MQTT topics.

I have a pre-existing VM infrastructure so I made my controller virtual but a raspberry pi would be perfect for this use and you can likely power it with the panel. What I did (and my suggestion), I basically created a software controller for the panel.

Especially when the binding requires rules to function (looks like the binding in the last link posted uses rules). It’s so easy and reliable i’m not sure a dedicated binding is required. The NX-586E spits out status to a “coded” string also but it’s 1001% easier to decipher. You also have to format commands to the panel a certain way. My panel already had a serial port for home automation but it spits out what looks like random characters that you have to interpret to figure out what it’s saying. It’s basically a virtual keypad and it’s fairly cheap. The NX-8 provides four programmable outputs that can be set up to activate external devices during an alarm or other system event and its e modular design allows for complete integration of multiple systems within one enclosure, and adding more zones or expanding capability is fast and easy.I also have a NX-8E panel but I use the NX-586E module to connect to openhab.

The UTC Interlogix NX-8 is a a full-featured security system that uses advanced technology for burglary, fire and environmental detection with eight hardwire zone inputs and potential to expand up to 48 fully programmable hardwired and/or wireless zones. UTC Interlogix (Formerly GE Security/Caddx) NX-8 Control Panel, 8 Hardwire Zone Inputs, Expandable to 48

Caddx nx8v2