Slightly off-topic, but: this reminds me of how MPW (the “Macintosh Programmers’ Workbench”) programmers would program much of the time, on Mac OS 9 and earlier versions, before the NeXT merger and Mac OS X. MPW kept a scrolling history that was a bit more “active” than normal terminal windows are. Instead of having shell script commands in a ~/bin directory, you’d have a part of your transcript that you could easily find, select and then hit Enter to execute it.

MPW was like a bizarro-world version of Unix. It worked in its own world, but everything seemed somehow inside-out to me.