diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 00000000000..b0e7f34491f
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,22 @@
+name: ci
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  tests:
+    name: Tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v6
+
+      - name: Set up Go
+        uses: actions/setup-go@v6
+        with:
+          go-version: "1.26.0"
+
+      - name: Run unit tests
+        run: go test ./...
\ No newline at end of file
diff --git a/README.md b/README.md
index c2bec0368b7..08e6ba4b556 100644
--- a/README.md
+++ b/README.md
@@ -21,3 +21,4 @@ go build -o notely && ./notely
 *This starts the server in non-database mode.* It will serve a simple webpage at `http://localhost:8080`.
 
 You do *not* need to set up a database or any interactivity on the webpage yet. Instructions for that will come later in the course!
+EDUARDO's version of Boot.dev's Notely app
diff --git a/internal/auth/get_api_key_test.go b/internal/auth/get_api_key_test.go
new file mode 100644
index 00000000000..e60830afd9d
--- /dev/null
+++ b/internal/auth/get_api_key_test.go
@@ -0,0 +1,29 @@
+package auth
+
+import (
+	"errors"
+	"net/http"
+	"testing"
+)
+
+func TestGetAPIKey(t *testing.T) {
+	headers := http.Header{}
+	headers.Set("Authorization", "ApiKey my-secret-key")
+
+	got, err := GetAPIKey(headers)
+	if err != nil {
+		t.Fatalf("expected no error, got %v", err)
+	}
+	if got != "my-secret-key" {
+		t.Fatalf("expected API key %q, got %q", "my-secret-key", got)
+	}
+}
+
+func TestGetAPIKeyNoAuthHeader(t *testing.T) {
+	headers := http.Header{}
+
+	_, err := GetAPIKey(headers)
+	if !errors.Is(err, ErrNoAuthHeaderIncluded) {
+		t.Fatalf("expected ErrNoAuthHeaderIncluded, got %v", err)
+	}
+}