What is required to emigrate to Mauritius

We are a retired couple looking to leave RSA before our currency decline makes it impossible.

The questions is really can we emigrate to simply retire ie not working ?.

If so does one need to transfer currency and if so how much and how often?.

Can one have dual nationality ie RSA and Mauritius?

Is it possible to purchase a property but remain a RSA citizen and travel back and forth a number of times a year.
Is there any benefit in that approach.?

What are prices of an average 3 bed en-suite home in a secure neighbourhood ?.
Is it necessary to locate in a "secure" neighbourhood ( if such actually exist)..

At the end of the day I guess we are just fed-up with the deteriorating situation in RSA and are looking to move to a country where society is "more" normal.

But at the same time we would have the African Wildlife experience close at hand.

Not sure if all this makes sense.