Who would want this sort of thing anyway?
In Speakers' Corner I hope nobody minds the link with personal history.
A professional colleague had a computer hobby involving writing programs in extended DOS (Tandy TrsDos).
He sold me the hard and software of a management system, (accounts and recalls), later converting to DataFlx and my first PC.
During a few short years he handed the running of his professional practice to his wife and wrote software for Boots, Kraft foods and other more specialised "Expert" programs linking databases to a sort of online advice/diagnosis system.
He was now using Dataflex and then Powerflx.
He updated my sofware in professional use and I retired. I wrote my own personal financial software.
By the time I was into Windows 9x and changed to Powerflx I could no longer make sense of it, and gave up in favour of Access.
That was 10 years ago!