My answer is only partly adequate, because I use Common Lisp with Slime sometimes and without Slime sometimes.

I find Slime to be fine.

I also run REPLs in Emacs comint buffers, so this gives me way, way more than the `readline' stuff.

Anyway, as they say,
"Punch cards?
You had _punch cards_?!"

#CommonLisp
#Emacs

@screwlisp

And this led me to find
<https://github.com/FemtoEmacs/Sumerian>:

«There are two ways of typesetting Sumerian. The first uses Unicode and a scriptable text editor like Emacs to perform the typesetting. The other one is to write your fonts using Bezier curves and an image manipulation program, such as GIMP. In this tutorial, you will learn to typeset Sumerian in Emacs, but I provide a Gimp directory where you can learn how to design your Sumerian fonts.»

I still can't remember the name of the Sumerian prototype for Noah (I don't think it's Enki), though, but I'll leave that for another time.

#Emacs

@dougmerritt