Help with project-Need some advice, connecting old screen to my HA

Hi
At first I thought to make a magicmirror and connect it to my HA, but then it seemed ridiculous it’s making things simple complicated
so I got and old screen and an extra RasPi: a mic a motion detector to attache to the pi
I want this screen to be a station at home that I can see status of all kind of things I’ll choose
I’ll make a special Lovelace for it, and I would like it to be alexa compatible to
so my question are:
A. what would be the most efficient way to use this screen as a station, do I need to install on the pi HA - will it be duplicates HA at home
B. how do I install on it alexa
thank you

What you could do is install android on the PI.
Android on Raspberry Pi 4: How to Make It Work | All3DP
Additionally you can then install the official Amazon Alexa App:
Amazon Alexa - Apps on Google Play
and Fully Kiosk Browser:
Fully Kiosk Browser & Lockdown - Apps on Google Play

A lot of people are running this setup on a cheap Android or FireTV tablet - so I would assume this is the closest you can come with a Raspberry.

thanks I have Rspi 2. so it really doesn’t work well with android…
so maybe any kind of “double” HA will be better? one for managing at home and the other just reflecting the first? any ideas how to do that?

On the second (display) pi just run a browser point it to the pi running HA , no different to rinning it on any other computer.

Also Raspberry Pi Quick Start Guide | Alexa Voice Service