Option to disable MPI

I want my users to not deal with _any_ installation problem.

<img width="1888" height="296" alt="Image" src="https://github.com/user-attachments/assets/c520684b-7759-42a1-ac6d-48921b74b682" />

Here I have tried enough to install the dependencies yet it still failed. 

In my use case I need to maximize the ease of setup for my users at all cost. 

Secondly I need this problem solved for myself