The tool used for this site is Jon Sterling's "forester": https://sr.ht/~jonsterling/forester/
His motivation for building it is described here: https://www.forester-notes.org/tfmt-0001/index.xml
Thanks for the link. Is there anything new in these notes? They are cleanly presented but look like the greatest hits up to about 1982. Is there anything in there about reasoning about domains? e.g. what Andy Pitts made hay out of in the 1990s.
Domain theory has reduced to a trickle, with almost no new results since the late 1990s. Most domain theorist have retired, or moved on to other things. Aside, Andy Pitts has been made a fellow of the Royal Society a few days ago!
I saw the title and thought “I remember Liam O’Connor giving a lecture series on this for TypeSIG” - PL really is tiny…