Very little call for true home automation now. Too much can be done by the diy folks. We do RTI which is still a closed market. But have had many clients who go the Alexa or Google route due to cost and think that’s automation. Network training is a must in almost anything though. Stay away from things like HAOS though as not a sellable, program and walk away from product. It definitely a diy thing.

Not even close. Think of everything else you will want hard wired for. Extenders are not worth the trouble if you can get a good wired AP to various locations.

Cat6 is all I would accept. If they are installing cat5 they have no idea of cabling. Walk away. Anyway, network drops are least of use now. We install 2 cat6 lines for every TV or other devices so client can use for IR transmitting and other smart home functions. And prewire for hard wired cams, access points whether you use them or not. Even upper end doorbells are POE now, so run cat6 home run to the doorbell along with regular bell wire. Home run everything, for standard homes. All devices in a nice size closet or rack space. You have no idea how much space amps and other things take till you have to install them. Cannot over emphasize how you should spend the money now to get that wire in the walls for things you might want later. And don’t let the ISP dictate where your internet should enter.

You’re welcome…

We do full home automation with high end RTI systems. But sometimes we get requests like yours that would be silly to use expensive automation to do.
Although if you wanted to do so there’s the possibility of using a 2 or 3 button remote to trigger the alert with one of the unused buttons. But that gets expensive by comparison to the remote doorbell solution.

Many out there. Cordless doorbell, leave the doorbell button in the car. Simple.

Wireless Doorbell, Waterproof Door Bell Battery Operated at 1,300 ft with 2 Plug in Receivers Kit 1 Chime transmitter Remote Button, 55 Chimes 5 Volume with LED, Loud Enough for Home Classroom, Black