diff --git a/01.workspace/oxidice_lib/src/fun/mod.rs b/01.workspace/oxidice_lib/src/fun/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/01.workspace/oxidice_lib/src/imp/mod.rs b/01.workspace/oxidice_lib/src/imp/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/01.workspace/oxidice_lib/src/lib.rs b/01.workspace/oxidice_lib/src/lib.rs
index b93cf3f..8784c5e 100644
--- a/01.workspace/oxidice_lib/src/lib.rs
+++ b/01.workspace/oxidice_lib/src/lib.rs
@@ -1,14 +1,8 @@
-pub fn add(left: u64, right: u64) -> u64 {
-    left + right
-}
+use std::*;
 
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn it_works() {
-        let result = add(2, 2);
-        assert_eq!(result, 4);
-    }
-}
+mod fun;
+mod imp;
+mod mcr;
+mod str;
+mod trt;
+mod tst;
diff --git a/01.workspace/oxidice_lib/src/mcr/mod.rs b/01.workspace/oxidice_lib/src/mcr/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/01.workspace/oxidice_lib/src/str/mod.rs b/01.workspace/oxidice_lib/src/str/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/01.workspace/oxidice_lib/src/trt/mod.rs b/01.workspace/oxidice_lib/src/trt/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/01.workspace/oxidice_lib/src/tst/mod.rs b/01.workspace/oxidice_lib/src/tst/mod.rs
new file mode 100644
index 0000000..e69de29