Modern Object Pascal Introduction for life on it?

AND more to the question - the contractor who remodeled my house in 2014 was still using some ancient DOS app, possibly running on a DOS machine or at least not overriding it. Not recently but when I was doing freelance as a Delphi dev. Amazing to see Pascal on HN. Thinking too small. The interactive testing needs to be unlocked by a license code. So you have to build and certify a new thing".