Reminds me of the investment banking dev cycle in the 2000s:

* trader writes a pricing "app" in Excel

* trader discovers MS Access db

* traders (plural) start copying around Access db files

* problems

* "IT" gets involved

* convert MS Access to oracle or sybase

* write some server process(es) in C++

* write some replacement front end (spend months arguing over best grid component to replace excel) in C++/MFC

* trading system emerges...

* rewrite in C#, Java

* etc.