diff --git a/src/bundle.nim b/src/bundle.nim
index 0be0374..f973f26 100644
--- a/src/bundle.nim
+++ b/src/bundle.nim
@@ -47,6 +47,7 @@ import ./incomplete
 import ./input
 import ./loaders/blend
 import ./loaders/loader_base
+import ./modifiers/shape_keys
 import ./myou_engine
 import ./objects/camera
 import ./objects/cubemap_probe
@@ -83,6 +84,7 @@ export render
 export scene
 export screen
 export shadow_common
+export shape_keys
 export simple_shadow
 export tables
 export texture
diff --git a/src/modifiers/shape_keys.nim b/src/modifiers/shape_keys.nim
index 99614cd..690b2b2 100644
--- a/src/modifiers/shape_keys.nim
+++ b/src/modifiers/shape_keys.nim
@@ -1,3 +1,34 @@
+# The contents of this file are subject to the Common Public Attribution License
+# Version 1.0 (the “License”); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+# https://myou.dev/licenses/LICENSE-CPAL. The License is based on the Mozilla
+# Public License Version 1.1 but Sections 14 and 15 have been added to cover use
+# of software over a computer network and provide for limited attribution for
+# the Original Developer. In addition, Exhibit A has been modified to be
+# consistent with Exhibit B.
+#
+# Software distributed under the License is distributed on an “AS IS” basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
+# the specific language governing rights and limitations under the License.
+#
+# The Original Code is Myou Engine.
+#
+# the Original Developer is the Initial Developer.
+#
+# The Initial Developer of the Original Code is the Myou Engine developers.
+# All portions of the code written by the Myou Engine developers are Copyright
+# (c) 2024. All Rights Reserved.
+#
+# Alternatively, the contents of this file may be used under the terms of the
+# GNU Affero General Public License version 3 (the [AGPL-3] License), in which
+# case the provisions of [AGPL-3] License are applicable instead of those above.
+#
+# If you wish to allow use of your version of this file only under the terms of
+# the [AGPL-3] License and not to allow others to use your version of this file
+# under the CPAL, indicate your decision by deleting the provisions above and
+# replace them with the notice and other provisions required by the [AGPL-3]
+# License. If you do not delete the provisions above, a recipient may use your
+# version of this file under either the CPAL or the [AGPL-3] License.
 
 import ../types
 import ../graphics/ubo