RPG 101 - Basic old fashioned AS400 RPG Hello World Example

RPG. As the younguns would say "The OG".
The original RPG, RPG3 or RPG400...... YES, YES I know there were earlier versions which were written with twigs, old bits of rock and trails in the sand but for this demo we are going to write a very VERY simple RPG program from the AS400 age.

https://www.nicklitten.com/course/rpg-101-basic-old-fashioned-as400-rpg-hello-world-example