diff --git a/util/CMakeLists.txt b/util/CMakeLists.txt
index e69de29..1321b2a 100644
--- a/util/CMakeLists.txt
+++ b/util/CMakeLists.txt
@@ -0,0 +1,2 @@
+add_executable(sandbox sandbox.cpp)
+target_link_libraries(sandbox yaml-cpp)
diff --git a/util/sandbox.cpp b/util/sandbox.cpp
new file mode 100644
index 0000000..e0979f2
--- /dev/null
+++ b/util/sandbox.cpp
@@ -0,0 +1,18 @@
+#include "yaml-cpp/yaml.h"
+#include <iostream>
+
+int main()
+{
+    YAML::Emitter out;
+    out << YAML::BeginSeq;
+    out << "foo";
+    out << YAML::Comment("Skills");
+    out << YAML::BeginMap;
+    out << YAML::Key << "attack" << YAML::Value << 23;
+    out << YAML::Key << "intelligence" << YAML::Value << 56;
+    out << YAML::EndMap;
+    out << YAML::EndSeq;
+    
+    std::cout << out.c_str() << "\n";
+    return 0;
+}