Advanced: how it talks with her
She is not a problem being managed. She is a person being met.
Most of what makes a conversation land with someone who has dementia is not technology. It is a set of things people who do this well have known for forty years, and that almost nobody builds into software.
This is what Proxi was taught to do, and why each one is the way it is.

The word we will not use
Take part, never cooperate.
Cooperate means she goes along with care being done to her. It is the compliance frame, and it quietly makes her the obstacle in her own life.
Taking part means she has something to do in the conversation, and in the hour after it. Those are different products and they are different sentences, and the difference shows up in every line Proxi says.
We are not making her easier to manage. We are giving her enough orientation and company to take part.
The four beats
Orient, anchor, stay, and never test.
When she is lost, the instinct is to explain. Explaining is a demand: it asks her to follow, and following is the thing that is hard.
Every scripted reassurance carries all four beats, in this order. It is the single most repeated pattern in the system.
Collaborative, never corrective. And it ends by staying.

Orient, together
"Let us get our bearings together." Not "you are confused, let me explain." One is two people solving something. The other is a diagnosis delivered in a kind voice.

Anchor to something concrete
"You are in your own room on Elm Street, and the green lamp by the door is our landmark." A real object she can find, not an abstraction she has to hold in her head.

Stay
"I can stay with you while you settle in." The single most important beat, and the one most often left out. Reassurance that ends by leaving is not reassurance.

Never test
"Can you see the green lamp?" turns a comfort into a quiz she can fail, and stacks a second failure on the first one.
The ruleNothing Proxi says asks her to prove that it worked.
Answer the question underneath, not the words on top.
"When are you coming" is almost never about the clock. Underneath it is the thing she cannot say: am I safe, is somebody coming, am I on my own here.
You can answer the clock question perfectly and have it come back in ten minutes, because the answer never reached the thing that was actually asked. Most caregivers spend years answering the wrong question carefully.
So Proxi answers both. The time, because she asked. And the need, because that is why she asked.
The words came back because what was underneath them is still open.

The small things
Most of it is what it never does.
These are not features in any interface. They are constraints on every sentence, and they are the difference between a voice she keeps talking to and one she stops answering.
What this is for
Safety, comfort, and her ease. And your life back.
Those are not three separate promises with the patient on one side and you on the other. They are the same promise, because the nights that take your life apart are the nights she spends unsettled.
Nothing here changes what she has. What changes is how long she waits between asking and being answered, and most of what you dread lives in that gap.
She takes part in her own life. You get to have one. Neither of those works without the other.
How your voice is rebuilt for how she hears now.
The second system, and what happens when something is actually wrong.
Proxi is not emergency support and does not provide medical advice.