Yup; here concurrent to the introduction of addition automation protocols I just incorporated them in to my home stuff always doing stuff a la carte and never putting all my eggs in one basket. Automation is evolving.
Many of us here have been around automation from the get go. Many leave it alone and it just works. Many folks tinker. Here my home is a sandbox and while I tinker I keep everything functioning. Many times I have played with stuff only to get it working fine then deciding I do not like it and move on to the next endeavor.
I am using all of the serial ports on my OmniPro panel. I personally prefer my OmniPro wired sensors over any wireless with battery sensors. I use UPB only for light switches here and it works fine. (have X10, ZWave and Zigbee connected to the OP2). With HomeSeer added 1 USB wire to 1 Digi 7 port USB hub connected to a few USB controllers and 8 + 8 serial controllers which did all talk to different things and all managed by Homeseer with it integrated to the OP2 board; well and today HS MS SAPI talks in tongues (domestic english flavors plus non english international flavors - to bug wife mostly). IE: The Amazon Alexa is known in the house here as only one voice / speech font; what fun is that?
It really too is what folks see as automation today more related to eye candy (no meat) than function or if the phone app is available is sometimes all that matters.
I accept that it is easy peasy to be able to utilize the cloud for automation while concurrently my preferences relate to efforts to keep that automation at home with little or no dependencies on external resources. That is me.
A side comment here....just because....
Unrelated got involved in a back end banking project (automation) which started in the 1990's It and still today being tweaked (wife is a banker - many over dinner discussions about what was agreed upon with the Matrix). The bank at the time did decide to name this back end "The Matrix". It is a bit of an AI mix into a decision tree process which removed the human aspect of banking to automating hard set rules which from the outside (client or user) made it easier and faster while concurrently on the inside the motive was pure profit and it has been and it take out (literally) that human touch. She also got involved a bit having to travel internationally relating to international call centers which did sort of provide a voice as long as the trainees only did what the Matrix told them to do; easier said than done.
From the get go relating to irrigation wanted to get out of the primitive timer stuff (Rainbird) so went to using Windows software (well a Homeseer plugin) in the early 2000's. It worked and was very flexible and had all of the bells and whistles. The software got better and I was able to miniaturize the footprint to a 2" X 2" embedded computer which sat in the old Rainbird box. The thought of using UPB / X10 / Z-Wave / Zigbee for irrigation was not ever considered; IE: from the get go it was some AD mechanism or board with software / firmware control. If I were to do this with the OP2 it would be in the same fashion using the wired analog in and out of the board; never X10, UPB, Z-Wave or Zigbee. I wanted more than timer and a timer is a timer is a timer...