diff --git a/.gitignore b/.gitignore
index f6e33f8..08c22c7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 test/index
+test/demo
 deps
diff --git a/README.md b/README.md
index 3695571..f175b82 100644
--- a/README.md
+++ b/README.md
@@ -27,19 +27,33 @@ DEBUG=bands ./musicprogram
 ```c++
 #include "./deps/heapwolf/debug/index.hxx"
 
-Debug d("bands");
-
-//
-// The instance can then be called with any number of arbitrary types.
-//
-d("danzig", 100, 'x');
+Debug debug("demo");
+Debug debug3("demo:beep");
+
+int f3 () {
+  Debug debug2("demo:boop");
+  debug2("running function f3");
+  debug3("running function f3");
+  return 0;
+}
+
+
+int f2 () {
+  debug("running function f2");
+  return f3();
+}
+
+int main () {
+  debug("starting program");
+  f2();
+  debug("ending program");
+  return 0;
+}
 ```
 
 #### OUTPUT
+![example](/docs/screenshot.png)
 
-```
-bands danzig 100 x
-```
 
 # TEST
 
diff --git a/docs/screenshot.png b/docs/screenshot.png
new file mode 100644
index 0000000..caae9f8
Binary files /dev/null and b/docs/screenshot.png differ
diff --git a/index.hxx b/index.hxx
index 6dc9436..48e8abf 100644
--- a/index.hxx
+++ b/index.hxx
@@ -74,6 +74,8 @@ class Debug {
         if (!std::regex_match(this->name, std::regex(res))) {
           return; // the env var does not contain the name
         }
+      } else {
+        return;
       }
 
       //
diff --git a/package.json b/package.json
index fc2fe21..673bad7 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,10 @@
       "clang++ -std=c++2a -stdlib=libc++",
       "test/index.cxx -o test/index && ./test/index"
     ],
-    "install": ""
+    "demo": [
+      "clang++ -std=c++2a -stdlib=libc++",
+      "test/demo.cxx -o test/demo && ./test/demo"
+    ]
   },
   "flags": [
     "-std=c++2a",
diff --git a/test/demo.cxx b/test/demo.cxx
new file mode 100644
index 0000000..aba04b1
--- /dev/null
+++ b/test/demo.cxx
@@ -0,0 +1,24 @@
+#include "../index.hxx"
+
+Debug debug("demo");
+Debug debug3("demo:beep");
+
+int f3 () {
+  Debug debug2("demo:boop");
+  debug2("running function f3");
+  debug3("running function f3");
+  return 0;
+}
+
+
+int f2 () {
+  debug("running function f2");
+  return f3();
+}
+
+int main () {
+  debug("starting program");
+  f2();
+  debug("ending program");
+  return 0;
+}