The situation this solves
An AI platform got the app built in days instead of months. That part worked, and it is why you used it. Then the client asks a reasonable question — can we host this ourselves, can we have the database, can we point our own domain at it — and the answer involves containers, a database, a reverse proxy, certificates and a deploy pipeline.
That is a different discipline from building the app, and it is a poor use of a week if you only do it twice a year. Meanwhile saying no to the client is not really an option, because the question is legitimate.
From an agency that already did this
Our first client came to us exactly this way: they had built an app for their own client and needed it moved.