diff --git a/README.md b/README.md
index 6b80393..81a106d 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,7 @@
 Only the files in [./files/](./files/) are original, as I seem to only have
 uploaded those source files to sololearn and not the buildsystem/others. This is
 also probably not the latest version, that seems to be lost to time.
+
+# Planned features
+
+- [ ] Calendar