diff --git a/cl-tree-sitter.config.asd b/cl-tree-sitter.config.asd
new file mode 100644
index 0000000..23793e5
--- /dev/null
+++ b/cl-tree-sitter.config.asd
@@ -0,0 +1,13 @@
+;;;; +----------------------------------------------------------------+
+;;;; | cl-tree-sitter                                                 |
+;;;; +----------------------------------------------------------------+
+
+(in-package :asdf-user)
+
+(asdf:defsystem #:cl-tree-sitter.config
+  :description "Configure tree-sitter libraries."
+  :author "death <github.com/death>"
+  :license "MIT"
+  :defsystem-depends-on ("asdf-package-system")
+  :components ((:file "config"))
+  :depends-on ("cffi-libffi"))
diff --git a/config.lisp b/config.lisp
new file mode 100644
index 0000000..f5bcc71
--- /dev/null
+++ b/config.lisp
@@ -0,0 +1,28 @@
+;;;; +----------------------------------------------------------------+
+;;;; | cl-tree-sitter                                                 |
+;;;; +----------------------------------------------------------------+
+
+(defpackage #:cl-tree-sitter.config
+  (:use #:cl)
+  (:import-from #:cffi
+                #:use-foreign-library
+                #:define-foreign-library)
+  (:export
+   #:define-tree-sitter-path
+   #:define-tree-sitter-wrapper-path))
+
+(in-package #:cl-tree-sitter.config)
+
+(defmacro define-tree-sitter-path (path)
+  `(progn
+     (define-foreign-library tree-sitter
+       (t ,path))
+     (use-foreign-library tree-sitter)))
+
+(defmacro define-tree-sitter-wrapper-path (path)
+  `(progn
+     (define-foreign-library tree-sitter-wrapper
+       (t (:default ,path)))
+     (use-foreign-library tree-sitter-wrapper)))
+
+
diff --git a/low-level.lisp b/low-level.lisp
index 0fe992f..04245e7 100644
--- a/low-level.lisp
+++ b/low-level.lisp
@@ -118,18 +118,24 @@
 
 ;; Library
 
-(define-foreign-library tree-sitter
-  (:darwin (:default "/usr/local/lib/libtree-sitter"))
-  (t (:or (:default "tree-sitter") (:default "libtree-sitter"))))
-
-(use-foreign-library tree-sitter)
-
-(define-foreign-library (tree-sitter-wrapper
-                         :search-path
-                         (asdf:system-relative-pathname :cl-tree-sitter ""))
-  (t (:default "tree-sitter-wrapper")))
-
-(use-foreign-library tree-sitter-wrapper)
+(handler-case
+    (cffi:foreign-library-loaded-p 'cl-tree-sitter.config::tree-sitter)
+  (t (e)
+    (declare (ignorable e))
+    (define-foreign-library cl-tree-sitter.config::tree-sitter
+      (:darwin (:default "/usr/local/lib/libtree-sitter"))
+      (t (:or (:default "tree-sitter") (:default "libtree-sitter"))))
+    (use-foreign-library cl-tree-sitter.config::tree-sitter-wrapper)))
+
+(handler-case
+    (cffi:foreign-library-loaded-p 'cl-tree-sitter.config::tree-sitter-wrapper)
+  (t (e)
+    (declare (ignorable e))
+    (define-foreign-library (cl-tree-sitter.config::tree-sitter-wrapper
+                             :search-path
+                             (asdf:system-relative-pathname :cl-tree-sitter ""))
+      (t (:default "tree-sitter-wrapper")))
+    (use-foreign-library cl-tree-sitter.config::tree-sitter-wrapper)))
 
 ;; Types