diff --git a/config.org b/config.org
index 1cd06ae..33fcec2 100644
--- a/config.org
+++ b/config.org
@@ -389,6 +389,17 @@ needs to be set up to install them if they aren't already.
                          (paredit-mode))))
     #+end_src
 
+*** Scheme
+    [[https://www.nongnu.org/geiser/][Geiser]] is a pretty complete collection of Scheme things for
+    Emacs. Only change from the defaults is to open the REPL in the
+    current window instead of creating a new one.
+
+    #+begin_src emacs-lisp
+      (use-package geiser
+        :config
+        (setq geiser-repl-use-other-window nil))
+    #+end_src
+
 ** YAML
    I don't really like YAML if I'm honest, but it's used a lot so...