I also remember the first version of Smalltalk from Digitalk that was character based and windowed. It was called Methods. I can’t seem to find any reference to it on the web now.
As an “enterprise” developer in the 80’s, we all had beepers to go along with our suits and ties. People often thought we must be doctors, but we were just corporate mainframe developers.
I worked for a few banks starting in the 1980’s. It was all MVS. End user applications were created using CICS and IMS. What we used to call OLTP (online transaction processing).
I have made many flutes out of pvc. Shakuhachi, bansuri, Ney, are all good to make in pvc. I have also made recorder style, using a shaped cedar plug on the mouth end.
After 9/11 everyone in the Fed working on the payments systems had to get National Security Clearance. These systems are considered critical national infrastructure. Exposing the source code will get you jail time.
As a contrast to those works, Summa Contra Gentiles by Aquinas would be a good follow up.
Then to pull both together try Christian-Islamic Preambles of Faith - An Exercise in Philosophy of Religion or Kalâm for Our Day Modeled after Thomas Aquinas,
Summa Contra Gentiles, Books I-III by Joseph Kenny, OP.