diff --git a/README.md b/README.md
index 8280973..8c786af 100644
--- a/README.md
+++ b/README.md
@@ -69,4 +69,5 @@ guidelines](doc/design_guidelines.md) before contributing.
 - [ ] Write the design guidelines document.
 - [ ] Documentation and tooling for widget development.
 - [ ] Implement the first widget.
+- [ ] Move internal libraries to internal/ directory.
 - [ ] Launch and iterate.