diff --git a/Cargo.toml b/Cargo.toml
index 34f83f3..b1bd9c3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,6 +16,7 @@ reactive_stores = "0.1.1"
 strum = "0.26.3"
 strum_macros = "0.26.4"
 serde_json = "1.0.133"
+src-common = { path = "./src-common" }
 
 [workspace]
-members = ["src-tauri"]
+members = ["src-common", "src-tauri"]
diff --git a/src-common/Cargo.toml b/src-common/Cargo.toml
new file mode 100644
index 0000000..02696e7
--- /dev/null
+++ b/src-common/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "src-common"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
diff --git a/src-common/src/lib.rs b/src-common/src/lib.rs
new file mode 100644
index 0000000..b93cf3f
--- /dev/null
+++ b/src-common/src/lib.rs
@@ -0,0 +1,14 @@
+pub fn add(left: u64, right: u64) -> u64 {
+    left + right
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let result = add(2, 2);
+        assert_eq!(result, 4);
+    }
+}
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index e17464d..6768082 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -29,3 +29,4 @@ thiserror = "2.0.8"
 directories = "5.0.1"
 indoc = "2.0.5"
 open = "5.3.1"
+src-common = { path = "../src-common" }