AREXX sounds very similar to AppleScript/AppleEvents which came with System 7 and exists in macOS to this day Apple Events even worked over a network so you co

AREXX sounds very similar to AppleScript/AppleEvents which came with System 7 and exists in macOS to this day Apple Events even worked over a network so you could trivially make scripts that remotely controlled other Macs over AppleTalk. This was great for making HyperCard stacks (HyperCard had native AppleScript support of course) that worked as remote control panels and such. Apple Events were also emitted by applications when you were running them, so you could make an AppleScript simply by hitting "record", acting out what you wanted to do, and then edit the script to add any kind of interactivity/customization you wanted to do. Apple Events was supported by a whole scripting subsystem in System 7 called the Open Scripting Architecture, so you didn't need to use AppleScript's own language, you could plug in other languages. Third party companies made Python and JavaScript language plugins so you could write (or record) scripts in those languages, and any app that wanted to add macro features would instantly support it. AppleScript itself was even ported to other human languages - Apple made a French version to demonstrate the capability