diff --git a/src/runtime/mod.rs b/src/runtime/mod.rs
index 1948a0c9e337dba41d0d653ff175ca81a88eb8c3..51a92ebbd2b18883ace58b3f04f4ca6aedc53e81 100644
--- a/src/runtime/mod.rs
+++ b/src/runtime/mod.rs
@@ -1,13 +1,16 @@
 #[cfg(feature = "ffi")]
 pub mod ffi;
 
+// EXPERIMENTAL:
+// mod predicate; // TODO later
+// mod ecs;
+mod bits;
+
 mod actors;
 pub(crate) mod communication;
 pub(crate) mod connector;
 pub(crate) mod endpoint;
 pub mod errors;
-// mod predicate; // TODO later
-mod ecs;
 mod serde;
 pub(crate) mod setup;