diff --git a/init.el b/init.el
index 6649dfd..76dc28a 100644
--- a/init.el
+++ b/init.el
@@ -924,6 +924,10 @@ current project."
 (use-package nix3
   :ensure t)
 
+(use-package twist
+  :ensure t
+  :hook (emacs-startup-hook . twist-watch-mode))
+
 (use-package terraform-mode
   :ensure t
   :mode ("\\.tf\\'" . terraform-mode))
@@ -934,4 +938,10 @@ current project."
 
 (use-package typst-ts-mode :ensure t)
 
+(use-package just-mode :ensure t)
+(use-package justl :ensure t)
+
+;; buttercup is the package of choice for testing elisp code.
+(use-package buttercup :ensure t)
+
 ;;; init.el ends here
diff --git a/recipes/twist b/recipes/twist
new file mode 100644
index 0000000..5b27ae5
--- /dev/null
+++ b/recipes/twist
@@ -0,0 +1 @@
+(twist :fetcher github :repo "emacs-twist/twist.el")