diff --git a/add/Cargo.lock b/add/Cargo.lock
new file mode 100644
index 0000000..efe4e14
--- /dev/null
+++ b/add/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "adder"
+version = "0.1.0"
diff --git a/add/Cargo.toml b/add/Cargo.toml
new file mode 100644
index 0000000..c5ea8e5
--- /dev/null
+++ b/add/Cargo.toml
@@ -0,0 +1,5 @@
+[workspace]
+
+members = [
+    "adder",
+]
diff --git a/add/adder/Cargo.toml b/add/adder/Cargo.toml
new file mode 100644
index 0000000..9a5826a
--- /dev/null
+++ b/add/adder/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "adder"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
diff --git a/add/adder/src/main.rs b/add/adder/src/main.rs
new file mode 100644
index 0000000..e7a11a9
--- /dev/null
+++ b/add/adder/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}
diff --git a/rust-exercises.code-workspace b/rust-exercises.code-workspace
index ecf768f..f19cd29 100644
--- a/rust-exercises.code-workspace
+++ b/rust-exercises.code-workspace
@@ -1,5 +1,8 @@
 {
     "folders": [
+        {
+            "path": "./add"
+        },
         {
             "path": "./minigrep"
         },