+
+bool config_is_sensor_enabled(const char *sid);
+void config_set_sensor_enabled(const char *sid, bool enabled);
+
+/*
+ * Returns the user directory containing psensor data (configuration
+ * and log).
+ * Corresponds to $HOME/.psensor/
+ * Creates the directory if it does not exist;
+ * Returns NULL if it cannot be determined.
+ */
+const char *get_psensor_user_dir();
+
+void config_sync();
+