--- /dev/null
+package org.simantics.simulator.toolkit;
+
+/**
+ * Standard simulator variable node interface used with {@link StandardNodeManagerSupport}
+ * and {@link StandardNodeManager}.
+ *
+ * This used to exist in org.simantics.db.layer0 in earlier versions but was
+ * moved here to make it DB-independent.
+ *
+ * @author Antti Villberg
+ * @since 1.34.0
+ */
+public interface StandardNode {
+}