diff --git a/README.md b/README.md
index 7ec0dcf..c2c8bd1 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,16 @@
 # Plasma Settings
 
 Settings application for Plasma Mobile.
 
-## API
+## Configuration modules
 
-You can find documentation for using the Active Settings infrastructure at
+Our aim for configuration modules is to work on multiple form factors.
+To archieve this, their user interface should be based on the new
+[KQuickAddons::ConfigModule API](https://api.kde.org/frameworks/kdeclarative/html/classKQuickAddons_1_1ConfigModule.html)
+and Kirigami.
+You can find documentation on creating such configuration modules on
 [docs.plasma-mobile.org/PlasmaSettings.html](https://docs.plasma-mobile.org/PlasmaSettings.html)
+
+Modules only useful on mobile can be added to the `modules` directory of this
+repository, but if they are useful for devices of multiple form factors,
+they should go into the plasma-workspace repository.