Maybe all that esoteric stuff I learned back in the 1970s isn’t entirely obsolete!

.PS
  box "joe"
  box "joe's" "bank" at last box + (1.2 , 1.2)
  arrow from 1st box.ne to last box.sw "banking"
  box "credit" "firm" at last box + (1.2 , -1.2)
  arrow from 2nd box.se to last box.nw "reporting"
  box "mortgage" "company" at last box + (-1.2 , -1.2)
  arrow from 3rd box.sw to last box.ne "credit check"
  arrow from 4th box.nw to 1st box.se "rejection"
.PE
 

Then on my Mac I invoke something along these lines:

    groff -e -p -ms foo.ms > foo.ps && open foo.ps

Man is that nostalgic! A manual for pic is here.

Now, where can I get a copy of ‘ideal’? It was a precursor to pic that used constraints and rendered it’s drawing onto the complex number plane.