diff --git a/modules/lang/elixir/README.org b/modules/lang/elixir/README.org
index b1a703e2f..49fec9f2e 100644
--- a/modules/lang/elixir/README.org
+++ b/modules/lang/elixir/README.org
@@ -13,6 +13,8 @@
     - [[#gentoo-linux][Gentoo Linux]]
     - [[#opensuse][openSUSE]]
 - [[#features][Features]]
+- [[#appendix][Appendix]]
+  - [[#commands][Commands]]
 
 * Description
 This module provides support for [[https://elixir-lang.org/][Elixir programming language]] via [[https://github.com/tonini/alchemist.el][alchemist.el]]
@@ -60,3 +62,16 @@ sudo zypper install elixir
 - Phoenix support
 - ~iex~ integration (~:tools eval~)
 - Syntax checking (~:checkers syntax~, using [[https://github.com/aaronjensen/flycheck-credo][flycheck-credo]]~)
+* Appendix
+** Commands
+*** exunit-mode
+The exunit-mode prefix is =SPC m t=.  Here is some examples:
+|                                          |                  |                                                        |
+| command                                  | key / ex command | description                                            |
+|------------------------------------------+------------------+--------------------------------------------------------|
+| ~exunit-verify-all~                        | =SPC m t a=        | Runs exunit on all files                               |
+| ~exunit-rerun~                             | =SPC m t r=        | Re-runs last exunit command                            |
+| ~exunit-verify~                            | =SPC m t v=        | Runs exunit on current file                            |
+| ~exunit-verify-single~                     | =SPC m t s=        | Runs exunit for the item on cursor                     |
+| ~exunit-toggle-file-and-test~              | =SPC m t t=        | Switch between implementation and test                 |
+| ~exunit-toggle-file-and-test-other-window~ | =SPC m t T=        | Switch between implementation and test in other window |
diff --git a/modules/lang/elixir/config.el b/modules/lang/elixir/config.el
index 34bb0abc9..6ad924eac 100644
--- a/modules/lang/elixir/config.el
+++ b/modules/lang/elixir/config.el
@@ -15,17 +15,17 @@
   (provide 'smartparens-elixir)
   :config
   (set-ligatures! 'elixir-mode
-    ;; Functional
-    :def "def"
-    :lambda "fn"
-    ;; :src_block "do"
-    ;; :src_block_end "end"
-    ;; Flow
-    :not "!"
-    :in "in" :not-in "not in"
-    :and "and" :or "or"
-    :for "for"
-    :return "return" :yield "use")
+                  ;; Functional
+                  :def "def"
+                  :lambda "fn"
+                  ;; :src_block "do"
+                  ;; :src_block_end "end"
+                  ;; Flow
+                  :not "!"
+                  :in "in" :not-in "not in"
+                  :and "and" :or "or"
+                  :for "for"
+                  :return "return" :yield "use")
 
   ;; ...and only complete the basics
   (sp-with-modes 'elixir-mode
@@ -71,3 +71,18 @@
   (let ((fn (byte-compile (lambda () (add-to-list (make-local-variable 'company-backends) 'alchemist-company)))))
     (remove-hook 'alchemist-mode-hook fn)
     (remove-hook 'alchemist-iex-mode-hook fn)))
+
+(use-package! exunit
+  :hook (elixir-mode . exunit-mode)
+  :defer t
+  :config
+  (map! :after elixir-mode
+        :localleader
+        :map elixir-mode-map
+        :prefix "t"
+        "a" #'exunit-verify-all
+        "r" #'exunit-rerun
+        "v" #'exunit-verify
+        "T" #'exunit-toggle-file-and-test
+        "t" #'exunit-toggle-file-and-test-other-window
+        "s" #'exunit-verify-single))
diff --git a/modules/lang/elixir/packages.el b/modules/lang/elixir/packages.el
index b4d091bf3..6fc03b62b 100644
--- a/modules/lang/elixir/packages.el
+++ b/modules/lang/elixir/packages.el
@@ -4,5 +4,6 @@
 ;; +elixir.el
 (package! elixir-mode :pin "01b332495d3f44addeb236428041c4ffa0c2ca3b")
 (package! alchemist :pin "6f99367511ae209f8fe2c990779764bbb4ccb6ed")
+(package! exunit :pin "c77b0397b80d772c98fcc34c9ab131a8350fbf40")
 (when (featurep! :checkers syntax)
   (package! flycheck-credo :pin "e88f11ead53805c361ec7706e44c3dfee1daa19f"))