Provides a simple interface to evaluate Purescript expression. Input is handled by the comint package. To start psci repl: M-x psci. Type C-h m in the *psci* buffer for more info. To activate some basic bindings, you can add the following hook to purescript-mode: (add-hook 'purescript-mode-hook 'inferior-psci-mode) To come back and forth between a purescript-mode buffer and repl, you could use repl-toggle (available on melpa): (require 'repl-toggle) (add-to-list 'rtog/mode-repl-alist '(purescript-mode . psci)) More informations: https://ardumont/emacs-psci Issue tracker: https://github.com/ardumont/emacs-psci/issues