Development
===========

You can start a dev shell with Nix. First run:

    direnv allow

Assuming you have nix installed, this will tell direnv to load the nix-shell
environment by default. Or just run `nix-shell`.

Now, to start a repl, just do `sbcl`, or run `start-repl.sh`.

Then in emacs, `M-x slime-connect`.