See also "dog" which I've been using for a while, works well. https://github.com/ogham/dog

I actually already have a "q" alias, I think single-letter aliases are probably quite common. Are there many other well-known utilities with a single-letter name?

Edit: Turns out I have one installed, "z", a universal archiver front-end. https://legacy.cs.indiana.edu/~kinzler/z/

I use a “z” as well, but it’s a global cd tool. https://github.com/rupa/z/