diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0dfbe1c..64981b4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -20,7 +20,6 @@ set(ENGINE_SOURCES
     src/Engine/Operator/GeometryOpDef.cpp
     src/Engine/Operator/OperatorTable.cpp
     src/Engine/Operator/Context.cpp
-    src/Engine/Operator/GOP_test.cpp
     src/Engine/Network/NetworkManager.cpp
 )
 
@@ -72,37 +71,37 @@ target_link_libraries(${AppExec} PRIVATE Qt6::Core Qt6::Widgets Qt6::SvgWidgets
 target_include_directories(${AppExec} PUBLIC src)
 
 # tests
-Include(FetchContent)
+# Include(FetchContent)
 
-FetchContent_Declare(
-  Catch2
-  GIT_REPOSITORY https://github.com/catchorg/Catch2.git
-  GIT_TAG        v3.8.1 # or a later release
-)
+# FetchContent_Declare(
+#   Catch2
+#   GIT_REPOSITORY https://github.com/catchorg/Catch2.git
+#   GIT_TAG        v3.8.1 # or a later release
+# )
 
-FetchContent_MakeAvailable(Catch2)
+# FetchContent_MakeAvailable(Catch2)
 
-add_executable(${TestExec}
-    ${ENGINE_SOURCES}
-    tests/main-tests.cpp
-    tests/OperatorTests.cpp
-    tests/NetworkTests.cpp
-)
-target_link_libraries(${TestExec} PRIVATE Catch2::Catch2WithMain Eigen3::Eigen Qt6::Core TBB::tbb Boost::filesystem Boost::system)
-target_compile_definitions(${TestExec} PRIVATE UNIT_TEST)
-target_include_directories(${TestExec} PUBLIC
-    src
-    ${BOOST_INCLUDE_DIRS}
-)
+# add_executable(${TestExec}
+#     ${ENGINE_SOURCES}
+#     tests/main-tests.cpp
+#     tests/OperatorTests.cpp
+#     tests/NetworkTests.cpp
+# )
+# target_link_libraries(${TestExec} PRIVATE Catch2::Catch2WithMain Eigen3::Eigen Qt6::Core TBB::tbb Boost::filesystem Boost::system)
+# target_compile_definitions(${TestExec} PRIVATE UNIT_TEST)
+# target_include_directories(${TestExec} PUBLIC
+#     src
+#     ${BOOST_INCLUDE_DIRS}
+# )
 
-# benchmarks
-add_executable(${BenchExec}
-    ${ENGINE_SOURCES}
+# # benchmarks
+# add_executable(${BenchExec}
+#     ${ENGINE_SOURCES}
 
-    tests/Benchmarks.cpp
-)
-target_link_libraries(${BenchExec} PRIVATE Catch2::Catch2WithMain Eigen3::Eigen Qt6::Core  TBB::tbb)
-target_compile_definitions(${BenchExec} PRIVATE UNIT_TEST)
-target_include_directories(${BenchExec} PUBLIC src)
+#     tests/Benchmarks.cpp
+# )
+# target_link_libraries(${BenchExec} PRIVATE Catch2::Catch2WithMain Eigen3::Eigen Qt6::Core  TBB::tbb)
+# target_compile_definitions(${BenchExec} PRIVATE UNIT_TEST)
+# target_include_directories(${BenchExec} PUBLIC src)
 
 add_subdirectory(src/OpDefs)
diff --git a/src/Engine/Operator/GeometryOperator.cpp b/src/Engine/Operator/GeometryOperator.cpp
index 54fe304..ad74635 100644
--- a/src/Engine/Operator/GeometryOperator.cpp
+++ b/src/Engine/Operator/GeometryOperator.cpp
@@ -3,7 +3,6 @@
 #include "Engine/Network/NetworkManager.h"
 #include <optional>
 #include "Engine/Operator/Context.h"
-#include "Engine/Operator/GOP_test.h"
 #include <iostream>
 
 using namespace enzo;
diff --git a/src/Gui/Network/Network.cpp b/src/Gui/Network/Network.cpp
index 7370094..b937841 100644
--- a/src/Gui/Network/Network.cpp
+++ b/src/Gui/Network/Network.cpp
@@ -19,7 +19,6 @@
 #include <qgraphicsitem.h>
 #include <qnamespace.h>
 #include <QLine>
-#include "Engine/Operator/GOP_test.h"
 #include "Gui/Network/TabMenu.h"
 
 using namespace enzo;
@@ -315,7 +314,7 @@ void Network::keyPressEvent(QKeyEvent *event)
         }
         case(Qt::Key_G):
         {
-            if(auto newNode = createNode(&GOP_test::ctor))
+            if(auto newNode = createNode(op::OperatorTable::getOpConstructor(1)))
             {
                 newNode->setPos(viewPos);
             }
diff --git a/src/OpDefs/CMakeLists.txt b/src/OpDefs/CMakeLists.txt
index 48b2690..0939367 100644
--- a/src/OpDefs/CMakeLists.txt
+++ b/src/OpDefs/CMakeLists.txt
@@ -8,7 +8,7 @@ find_package (Eigen3 3.3 REQUIRED NO_MODULE)
 
 set(libName enzoOps1)
 add_library(${libName} SHARED
-    main.cpp
+    RegisterPlugin.cpp
     ../Engine/Operator/OperatorTable.cpp
     ../Engine/Operator/GeometryOpDef.cpp
     ../Engine/Operator/GeometryOperator.cpp
@@ -17,6 +17,8 @@ add_library(${libName} SHARED
     ../Engine/Operator/Geometry.cpp
     ../Engine/Operator/Attribute.cpp
     ../Engine/Network/NetworkManager.cpp
+    GopTransform.cpp
+    GopHouse.cpp
 )
 target_link_libraries(${libName} PRIVATE Qt6::Core Qt6::Widgets Qt6::SvgWidgets Qt6::OpenGLWidgets glm::glm Eigen3::Eigen TBB::tbb)
 
diff --git a/src/Engine/Operator/GOP_test.cpp b/src/OpDefs/GopHouse.cpp
similarity index 94%
rename from src/Engine/Operator/GOP_test.cpp
rename to src/OpDefs/GopHouse.cpp
index ea7f680..8be2bda 100644
--- a/src/Engine/Operator/GOP_test.cpp
+++ b/src/OpDefs/GopHouse.cpp
@@ -1,14 +1,14 @@
-#include "Engine/Operator/GOP_test.h"
+#include "OpDefs/GopHouse.h"
 #include "Engine/Operator/AttributeHandle.h"
 #include <oneapi/tbb/parallel_for.h>
 
-GOP_test::GOP_test(enzo::nt::OpId opId)
+GOP_house::GOP_house(enzo::nt::OpId opId)
 : enzo::nt::GeometryOpDef(opId)
 {
 
 }
 
-void GOP_test::cookOp(enzo::op::Context context)
+void GOP_house::cookOp(enzo::op::Context context)
 {
     using namespace enzo;
     // std::cout << "COOKING\n";
diff --git a/src/Engine/Operator/GOP_test.h b/src/OpDefs/GopHouse.h
similarity index 72%
rename from src/Engine/Operator/GOP_test.h
rename to src/OpDefs/GopHouse.h
index 95721db..e749dbd 100644
--- a/src/Engine/Operator/GOP_test.h
+++ b/src/OpDefs/GopHouse.h
@@ -1,15 +1,15 @@
 #pragma once
 #include "Engine/Operator/GeometryOpDef.h"
 
-class GOP_test
+class GOP_house
 : public enzo::nt::GeometryOpDef
 {
 public:
-    GOP_test(enzo::nt::OpId opId);
+    GOP_house(enzo::nt::OpId opId);
     virtual void cookOp(enzo::op::Context context);
     static enzo::nt::GeometryOpDef* ctor(enzo::nt::OpId opId)
     {
-        return new GOP_test(opId);
+        return new GOP_house(opId);
     }
 
 };
diff --git a/src/OpDefs/main.cpp b/src/OpDefs/GopTransform.cpp
similarity index 70%
rename from src/OpDefs/main.cpp
rename to src/OpDefs/GopTransform.cpp
index 303f689..0674b44 100644
--- a/src/OpDefs/main.cpp
+++ b/src/OpDefs/GopTransform.cpp
@@ -1,23 +1,5 @@
-#include "Engine/Operator/OperatorTable.h"
 #include "OpDefs/GopTransform.hpp"
-#include <boost/config.hpp>
-#include <boost/dll.hpp>
-#include <string>
 #include "Engine/Operator/AttributeHandle.h"
-#include <iostream>
-
-extern "C"
-{
-    BOOST_SYMBOL_EXPORT void newSopOperator(enzo::op::addOperatorPtr addOperator)
-    {
-        addOperator(
-            "transform",
-            "Transform",
-            &GopTransform::ctor
-        );
-    }
-
-}
 
 GopTransform::GopTransform(enzo::nt::OpId opId)
 : enzo::nt::GeometryOpDef(opId)
diff --git a/src/OpDefs/RegisterPlugin.cpp b/src/OpDefs/RegisterPlugin.cpp
new file mode 100644
index 0000000..1362c30
--- /dev/null
+++ b/src/OpDefs/RegisterPlugin.cpp
@@ -0,0 +1,23 @@
+#include "Engine/Operator/OperatorTable.h"
+#include "GopHouse.h"
+#include "OpDefs/GopTransform.hpp"
+#include <boost/config.hpp>
+#include <boost/dll.hpp>
+
+extern "C"
+{
+    BOOST_SYMBOL_EXPORT void newSopOperator(enzo::op::addOperatorPtr addOperator)
+    {
+        addOperator(
+            "transform",
+            "Transform",
+            &GopTransform::ctor
+        );
+        addOperator(
+            "house",
+            "House",
+            &GOP_house::ctor
+        );
+    }
+
+}