diff --git a/xo-cmake/cmake/xo_macros/xo_cxx.cmake b/xo-cmake/cmake/xo_macros/xo_cxx.cmake
index 2003515f..13ca3f9a 100644
--- a/xo-cmake/cmake/xo_macros/xo_cxx.cmake
+++ b/xo-cmake/cmake/xo_macros/xo_cxx.cmake
@@ -1738,7 +1738,6 @@ function(xo_add_genfacetimpl)
         FACET_PKG           # package providing abstract interface
         FACET_DIR           # facet directory (instead of FACET_PKG)
         FACET               # facet name
-        REPR                # representation name
         INPUT               # Input .json5 file
         OUTPUT_HPP_DIR      # Directory for .hpp files
         OUTPUT_IMPL_SUBDIR  # Subdirectory name for impl headers
@@ -1754,9 +1753,6 @@ function(xo_add_genfacetimpl)
     if(NOT DEFINED GF_FACET)
         message(FATAL_ERROR "xo_add_genfacetimpl: FACET is required")
     endif()
-    if(NOT DEFINED GF_REPR)
-        message(FATAL_ERROR "xo_add_genfacetimpl: REPR is required")
-    endif()
     if(NOT DEFINED GF_INPUT)
         message(FATAL_ERROR "xo_add_genfacetimpl: INPUT is required")
     endif()
diff --git a/xo-expression2/CMakeLists.txt b/xo-expression2/CMakeLists.txt
index 1af09c58..87f733bb 100644
--- a/xo-expression2/CMakeLists.txt
+++ b/xo-expression2/CMakeLists.txt
@@ -38,7 +38,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-symboltable-localsymtab
     FACET_PKG xo_expression2
     FACET SymbolTable
-    REPR LocalSymtab
+#    REPR LocalSymtab
     INPUT idl/ISymbolTable_DLocalSymtab.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR symtab
@@ -49,7 +49,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-gcobject-localsymtab
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR LocalSymtab
+#    REPR LocalSymtab
     INPUT idl/IGCObject_DLocalSymtab.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR symtab
@@ -60,7 +60,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-printable-localsymtab
     FACET_PKG xo_printable2
     FACET Printable
-    REPR LocalSymtab
+#    REPR LocalSymtab
     INPUT idl/IPrintable_DLocalSymtab.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR symtab
@@ -73,7 +73,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-symboltable-globalsymtab
     FACET_PKG xo_expression2
     FACET SymbolTable
-    REPR GlobalSymtab
+#    REPR GlobalSymtab
     INPUT idl/ISymbolTable_DGlobalSymtab.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR symtab
@@ -84,7 +84,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-gcobject-globalsymtab
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR GlobalSymtab
+#    REPR GlobalSymtab
     INPUT idl/IGCObject_DGlobalSymtab.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR symtab
@@ -95,7 +95,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-printable-globalsymtab
     FACET_PKG xo_printable2
     FACET Printable
-    REPR GlobalSymtab
+#    REPR GlobalSymtab
     INPUT idl/IPrintable_DGlobalSymtab.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR symtab
@@ -119,7 +119,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-expression-constant
     FACET_PKG xo_expression2
     FACET Expression
-    REPR Constant
+#    REPR Constant
     INPUT idl/IExpression_DConstant.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -130,7 +130,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-gcobject-constant
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR Constant
+#    REPR Constant
     INPUT idl/IGCObject_DConstant.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -141,7 +141,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-printable-constant
     FACET_PKG xo_printable2
     FACET Printable
-    REPR Constant
+#    REPR Constant
     INPUT idl/IPrintable_DConstant.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -154,7 +154,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-expression-variable
     FACET_PKG xo_expression2
     FACET Expression
-    REPR Variable
+#    REPR Variable
     INPUT idl/IExpression_DVariable.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -165,7 +165,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-gcobject-variable
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR Variable
+#    REPR Variable
     INPUT idl/IGCObject_DVariable.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -176,7 +176,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-printable-variable
     FACET_PKG xo_printable2
     FACET Printable
-    REPR Variable
+#    REPR Variable
     INPUT idl/IPrintable_DVariable.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -189,7 +189,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-gcobject-typename
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR Typename
+#    REPR Typename
     INPUT idl/IGCObject_DTypename.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR typename
@@ -200,7 +200,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-printable-typename
     FACET_PKG xo_printable2
     FACET Printable
-    REPR Typename
+#    REPR Typename
     INPUT idl/IPrintable_DTypename.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR typename
@@ -213,7 +213,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-expression-varref
     FACET_PKG xo_expression2
     FACET Expression
-    REPR VarRef
+#    REPR VarRef
     INPUT idl/IExpression_DVarRef.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -224,7 +224,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-gcobject-varref
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR VarRef
+#    REPR VarRef
     INPUT idl/IGCObject_DVarRef.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -235,7 +235,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-printable-varref
     FACET_PKG xo_printable2
     FACET Printable
-    REPR VarRef
+#    REPR VarRef
     INPUT idl/IPrintable_DVarRef.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -248,7 +248,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-expression-defineexpr
     FACET_PKG xo_expression2
     FACET Expression
-    REPR DefineExpr
+#    REPR DefineExpr
     INPUT idl/IExpression_DDefineExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -259,7 +259,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-gcobject-defineexpr
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR DefineExpr
+#    REPR DefineExpr
     INPUT idl/IGCObject_DDefineExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR define
@@ -270,7 +270,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-printable-defineexpr
     FACET_PKG xo_printable2
     FACET Printable
-    REPR DefineExpr
+#    REPR DefineExpr
     INPUT idl/IPrintable_DDefineExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -283,7 +283,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-expression-applyexpr
     FACET_PKG xo_expression2
     FACET Expression
-    REPR ApplyExpr
+#    REPR ApplyExpr
     INPUT idl/IExpression_DApplyExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -294,7 +294,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-gcobject-applyexpr
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR ApplyExpr
+#    REPR ApplyExpr
     INPUT idl/IGCObject_DApplyExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -305,7 +305,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-printable-applyexpr
     FACET_PKG xo_printable2
     FACET Printable
-    REPR ApplyExpr
+#    REPR ApplyExpr
     INPUT idl/IPrintable_DApplyExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -318,7 +318,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-expression-lambdaexpr
     FACET_PKG xo_expression2
     FACET Expression
-    REPR LambdaExpr
+#    REPR LambdaExpr
     INPUT idl/IExpression_DLambdaExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -329,7 +329,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-gcobject-lambdaexpr
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR LambdaExpr
+#    REPR LambdaExpr
     INPUT idl/IGCObject_DLambdaExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -340,7 +340,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-printable-lambdaexpr
     FACET_PKG xo_printable2
     FACET Printable
-    REPR LambdaExpr
+#    REPR LambdaExpr
     INPUT idl/IPrintable_DLambdaExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -353,7 +353,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-expression-ifelseexpr
     FACET_PKG xo_expression2
     FACET Expression
-    REPR IfElseExpr
+#    REPR IfElseExpr
     INPUT idl/IExpression_DIfElseExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -364,7 +364,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-gcobject-ifelseexpr
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR IfElseExpr
+#    REPR IfElseExpr
     INPUT idl/IGCObject_DIfElseExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -375,7 +375,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-printable-ifelseexpr
     FACET_PKG xo_printable2
     FACET Printable
-    REPR IfElseExpr
+#    REPR IfElseExpr
     INPUT idl/IPrintable_DIfElseExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -388,7 +388,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-expression-sequenceexpr
     FACET_PKG xo_expression2
     FACET Expression
-    REPR SequenceExpr
+#    REPR SequenceExpr
     INPUT idl/IExpression_DSequenceExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -399,7 +399,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-gcobject-sequenceexpr
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR SequenceExpr
+#    REPR SequenceExpr
     INPUT idl/IGCObject_DSequenceExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
@@ -410,7 +410,7 @@ xo_add_genfacetimpl(
     TARGET xo-expression2-facetimpl-printable-sequenceexpr
     FACET_PKG xo_printable2
     FACET Printable
-    REPR SequenceExpr
+#    REPR SequenceExpr
     INPUT idl/IPrintable_DSequenceExpr.json5
     OUTPUT_HPP_DIR include/xo/expression2
     OUTPUT_IMPL_SUBDIR detail
diff --git a/xo-expression2/include/xo/expression2/define/IGCObject_DDefineExpr.hpp b/xo-expression2/include/xo/expression2/define/IGCObject_DDefineExpr.hpp
index 321ce4e9..216dd18b 100644
--- a/xo-expression2/include/xo/expression2/define/IGCObject_DDefineExpr.hpp
+++ b/xo-expression2/include/xo/expression2/define/IGCObject_DDefineExpr.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DDefineExpr.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-expression2/include/xo/expression2/detail/IGCObject_DApplyExpr.hpp b/xo-expression2/include/xo/expression2/detail/IGCObject_DApplyExpr.hpp
index f0bf15ff..10b08c10 100644
--- a/xo-expression2/include/xo/expression2/detail/IGCObject_DApplyExpr.hpp
+++ b/xo-expression2/include/xo/expression2/detail/IGCObject_DApplyExpr.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DApplyExpr.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-expression2/include/xo/expression2/detail/IGCObject_DConstant.hpp b/xo-expression2/include/xo/expression2/detail/IGCObject_DConstant.hpp
index da593190..871f9c91 100644
--- a/xo-expression2/include/xo/expression2/detail/IGCObject_DConstant.hpp
+++ b/xo-expression2/include/xo/expression2/detail/IGCObject_DConstant.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DConstant.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-expression2/include/xo/expression2/detail/IGCObject_DIfElseExpr.hpp b/xo-expression2/include/xo/expression2/detail/IGCObject_DIfElseExpr.hpp
index 20cea34f..6a47d9b8 100644
--- a/xo-expression2/include/xo/expression2/detail/IGCObject_DIfElseExpr.hpp
+++ b/xo-expression2/include/xo/expression2/detail/IGCObject_DIfElseExpr.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DIfElseExpr.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-expression2/include/xo/expression2/detail/IGCObject_DLambdaExpr.hpp b/xo-expression2/include/xo/expression2/detail/IGCObject_DLambdaExpr.hpp
index 2f4e72e0..7d1ba5b0 100644
--- a/xo-expression2/include/xo/expression2/detail/IGCObject_DLambdaExpr.hpp
+++ b/xo-expression2/include/xo/expression2/detail/IGCObject_DLambdaExpr.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DLambdaExpr.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-expression2/include/xo/expression2/detail/IGCObject_DSequenceExpr.hpp b/xo-expression2/include/xo/expression2/detail/IGCObject_DSequenceExpr.hpp
index 51009ecd..1f6b8deb 100644
--- a/xo-expression2/include/xo/expression2/detail/IGCObject_DSequenceExpr.hpp
+++ b/xo-expression2/include/xo/expression2/detail/IGCObject_DSequenceExpr.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DSequenceExpr.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-expression2/include/xo/expression2/detail/IGCObject_DVarRef.hpp b/xo-expression2/include/xo/expression2/detail/IGCObject_DVarRef.hpp
index 487e2832..e991ebb8 100644
--- a/xo-expression2/include/xo/expression2/detail/IGCObject_DVarRef.hpp
+++ b/xo-expression2/include/xo/expression2/detail/IGCObject_DVarRef.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DVarRef.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-expression2/include/xo/expression2/detail/IGCObject_DVariable.hpp b/xo-expression2/include/xo/expression2/detail/IGCObject_DVariable.hpp
index 4728746f..242f335f 100644
--- a/xo-expression2/include/xo/expression2/detail/IGCObject_DVariable.hpp
+++ b/xo-expression2/include/xo/expression2/detail/IGCObject_DVariable.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DVariable.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-expression2/include/xo/expression2/symtab/IGCObject_DGlobalSymtab.hpp b/xo-expression2/include/xo/expression2/symtab/IGCObject_DGlobalSymtab.hpp
index f136b513..92149015 100644
--- a/xo-expression2/include/xo/expression2/symtab/IGCObject_DGlobalSymtab.hpp
+++ b/xo-expression2/include/xo/expression2/symtab/IGCObject_DGlobalSymtab.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DGlobalSymtab.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-expression2/include/xo/expression2/symtab/IGCObject_DLocalSymtab.hpp b/xo-expression2/include/xo/expression2/symtab/IGCObject_DLocalSymtab.hpp
index cc770261..94b9e279 100644
--- a/xo-expression2/include/xo/expression2/symtab/IGCObject_DLocalSymtab.hpp
+++ b/xo-expression2/include/xo/expression2/symtab/IGCObject_DLocalSymtab.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DLocalSymtab.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-interpreter2/CMakeLists.txt b/xo-interpreter2/CMakeLists.txt
index 426e4112..32db85f2 100644
--- a/xo-interpreter2/CMakeLists.txt
+++ b/xo-interpreter2/CMakeLists.txt
@@ -29,9 +29,9 @@ add_subdirectory(utest)
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-gcobject-vsmdefcontframe
-    FACET_PKG xo_gc
+    FACET_PKG xo_alloc2
     FACET GCObject
-    REPR VsmDefContFrame
+#    REPR VsmDefContFrame
     INPUT idl/IGCObject_DVsmDefContFrame.json5
 )
 
@@ -40,7 +40,7 @@ xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-printable-vsmdefcontframe
     FACET_PKG xo_printable2
     FACET Printable
-    REPR VsmDefContFrame
+#    REPR VsmDefContFrame
     INPUT idl/IPrintable_DVsmDefContFrame.json5
 )
 
@@ -49,9 +49,9 @@ xo_add_genfacetimpl(
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-gcobject-vsmapplyframe
-    FACET_PKG xo_gc
+    FACET_PKG xo_alloc2
     FACET GCObject
-    REPR VsmApplyFrame
+#    REPR VsmApplyFrame
     INPUT idl/IGCObject_DVsmApplyFrame.json5
 )
 
@@ -60,7 +60,7 @@ xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-printable-vsmapplyframe
     FACET_PKG xo_printable2
     FACET Printable
-    REPR VsmApplyFrame
+#    REPR VsmApplyFrame
     INPUT idl/IPrintable_DVsmApplyFrame.json5
 )
 
@@ -69,9 +69,9 @@ xo_add_genfacetimpl(
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-gcobject-vsmevalargsframe
-    FACET_PKG xo_gc
+    FACET_PKG xo_alloc2
     FACET GCObject
-    REPR VsmEvalArgsFrame
+#    REPR VsmEvalArgsFrame
     INPUT idl/IGCObject_DVsmEvalArgsFrame.json5
 )
 
@@ -80,7 +80,7 @@ xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-printable-vsmevalargsframe
     FACET_PKG xo_printable2
     FACET Printable
-    REPR DVsmEvalArgsFrame
+#    REPR DVsmEvalArgsFrame
     INPUT idl/IPrintable_DVsmEvalArgsFrame.json5
 )
 
@@ -89,9 +89,9 @@ xo_add_genfacetimpl(
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-gcobject-vsmapplyclosureframe
-    FACET_PKG xo_gc
+    FACET_PKG xo_alloc2
     FACET GCObject
-    REPR VsmApplyClosureFrame
+#    REPR VsmApplyClosureFrame
     INPUT idl/IGCObject_DVsmApplyClosureFrame.json5
 )
 
@@ -100,7 +100,7 @@ xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-printable-vsmapplyclosureframe
     FACET_PKG xo_printable2
     FACET Printable
-    REPR DVsmApplyClosureFrame
+#    REPR DVsmApplyClosureFrame
     INPUT idl/IPrintable_DVsmApplyClosureFrame.json5
 )
 
@@ -109,9 +109,9 @@ xo_add_genfacetimpl(
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-gcobject-vsmifelsecontframe
-    FACET_PKG xo_gc
+    FACET_PKG xo_alloc2
     FACET GCObject
-    REPR VsmIfElseContFrame
+#    REPR VsmIfElseContFrame
     INPUT idl/IGCObject_DVsmIfElseContFrame.json5
 )
 
@@ -120,7 +120,7 @@ xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-printable-vsmifelsecontframe
     FACET_PKG xo_printable2
     FACET Printable
-    REPR VsmIfElseContFrame
+#    REPR VsmIfElseContFrame
     INPUT idl/IPrintable_DVsmIfElseContFrame.json5
 )
 
@@ -129,9 +129,9 @@ xo_add_genfacetimpl(
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-gcobject-vsmseqcontframe
-    FACET_PKG xo_gc
+    FACET_PKG xo_alloc2
     FACET GCObject
-    REPR VsmSeqContFrame
+#    REPR VsmSeqContFrame
     INPUT idl/IGCObject_DVsmSeqContFrame.json5
 )
 
@@ -140,7 +140,7 @@ xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-printable-vsmseqcontframe
     FACET_PKG xo_printable2
     FACET Printable
-    REPR DVsmSeqContFrame
+#    REPR DVsmSeqContFrame
     INPUT idl/IPrintable_DVsmSeqContFrame.json5
 )
 
@@ -159,9 +159,9 @@ xo_add_genfacetimpl(
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-gcobject-closure
-    FACET_PKG xo_gc
+    FACET_PKG xo_alloc2
     FACET GCObject
-    REPR Closure
+#    REPR Closure
     INPUT idl/IGCObject_DClosure.json5
 )
 
@@ -170,7 +170,7 @@ xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-printable-closure
     FACET_PKG xo_printable2
     FACET Printable
-    REPR Closure
+#    REPR Closure
     INPUT idl/IPrintable_DClosure.json5
 )
 
@@ -179,9 +179,9 @@ xo_add_genfacetimpl(
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-gcobject-globalenv
-    FACET_PKG xo_gc
+    FACET_PKG xo_alloc2
     FACET GCObject
-    REPR GlobalEnv
+#    REPR GlobalEnv
     INPUT idl/IGCObject_DGlobalEnv.json5
 )
 
@@ -190,7 +190,7 @@ xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-printable-globalenv
     FACET_PKG xo_printable2
     FACET Printable
-    REPR GlobalEnv
+#    REPR GlobalEnv
     INPUT idl/IPrintable_DGlobalEnv.json5
 )
 
@@ -199,9 +199,9 @@ xo_add_genfacetimpl(
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-gcobject-localenv
-    FACET_PKG xo_gc
+    FACET_PKG xo_alloc2
     FACET GCObject
-    REPR LocalEnv
+#    REPR LocalEnv
     INPUT idl/IGCObject_DLocalEnv.json5
 )
 
@@ -210,7 +210,7 @@ xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-printable-localenv
     FACET_PKG xo_printable2
     FACET Printable
-    REPR LocalEnv
+#    REPR LocalEnv
     INPUT idl/IPrintable_DLocalEnv.json5
 )
 
@@ -220,7 +220,7 @@ xo_add_genfacetimpl(
     TARGET xo-interpreter2-facetimpl-runtimecontext-vsmrcx
     FACET_PKG xo_procedure2
     FACET RuntimeContext
-    REPR DVsmRcx
+#    REPR DVsmRcx
     INPUT idl/IRuntimeContext_DVsmRcx.json5
     )
 
diff --git a/xo-interpreter2/include/xo/interpreter2/define/IGCObject_DVsmDefContFrame.hpp b/xo-interpreter2/include/xo/interpreter2/define/IGCObject_DVsmDefContFrame.hpp
index bc3423d9..309a6ac7 100644
--- a/xo-interpreter2/include/xo/interpreter2/define/IGCObject_DVsmDefContFrame.hpp
+++ b/xo-interpreter2/include/xo/interpreter2/define/IGCObject_DVsmDefContFrame.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DVsmDefContFrame.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DClosure.hpp b/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DClosure.hpp
index 8507d640..fb863205 100644
--- a/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DClosure.hpp
+++ b/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DClosure.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DClosure.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DVsmApplyClosureFrame.hpp b/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DVsmApplyClosureFrame.hpp
index 7db673e7..2baacd05 100644
--- a/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DVsmApplyClosureFrame.hpp
+++ b/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DVsmApplyClosureFrame.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DVsmApplyClosureFrame.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DVsmApplyFrame.hpp b/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DVsmApplyFrame.hpp
index 401a91d7..ca6d3b10 100644
--- a/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DVsmApplyFrame.hpp
+++ b/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DVsmApplyFrame.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DVsmApplyFrame.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DVsmEvalArgsFrame.hpp b/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DVsmEvalArgsFrame.hpp
index 1a91c32f..4a8ad18a 100644
--- a/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DVsmEvalArgsFrame.hpp
+++ b/xo-interpreter2/include/xo/interpreter2/detail/IGCObject_DVsmEvalArgsFrame.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DVsmEvalArgsFrame.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-interpreter2/include/xo/interpreter2/env/IGCObject_DGlobalEnv.hpp b/xo-interpreter2/include/xo/interpreter2/env/IGCObject_DGlobalEnv.hpp
index 71ac3e49..1f0f9281 100644
--- a/xo-interpreter2/include/xo/interpreter2/env/IGCObject_DGlobalEnv.hpp
+++ b/xo-interpreter2/include/xo/interpreter2/env/IGCObject_DGlobalEnv.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DGlobalEnv.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-interpreter2/include/xo/interpreter2/env/IGCObject_DLocalEnv.hpp b/xo-interpreter2/include/xo/interpreter2/env/IGCObject_DLocalEnv.hpp
index 25db925a..d318bb61 100644
--- a/xo-interpreter2/include/xo/interpreter2/env/IGCObject_DLocalEnv.hpp
+++ b/xo-interpreter2/include/xo/interpreter2/env/IGCObject_DLocalEnv.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DLocalEnv.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-interpreter2/include/xo/interpreter2/ifelse/IGCObject_DVsmIfElseContFrame.hpp b/xo-interpreter2/include/xo/interpreter2/ifelse/IGCObject_DVsmIfElseContFrame.hpp
index 1d29a8ac..293dd70d 100644
--- a/xo-interpreter2/include/xo/interpreter2/ifelse/IGCObject_DVsmIfElseContFrame.hpp
+++ b/xo-interpreter2/include/xo/interpreter2/ifelse/IGCObject_DVsmIfElseContFrame.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DVsmIfElseContFrame.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-interpreter2/include/xo/interpreter2/sequence/IGCObject_DVsmSeqContFrame.hpp b/xo-interpreter2/include/xo/interpreter2/sequence/IGCObject_DVsmSeqContFrame.hpp
index 9b686c6c..1bdbe2ab 100644
--- a/xo-interpreter2/include/xo/interpreter2/sequence/IGCObject_DVsmSeqContFrame.hpp
+++ b/xo-interpreter2/include/xo/interpreter2/sequence/IGCObject_DVsmSeqContFrame.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DVsmSeqContFrame.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-numeric/CMakeLists.txt b/xo-numeric/CMakeLists.txt
index 92d4b9e7..b63fe4a0 100644
--- a/xo-numeric/CMakeLists.txt
+++ b/xo-numeric/CMakeLists.txt
@@ -34,7 +34,7 @@ xo_add_genfacetimpl(
     TARGET xo-numeric-facetimpl-numeric-float
     FACET_PKG xo_numeric
     FACET Numeric
-    REPR Float
+#    REPR Float
     INPUT idl/INumeric_DFloat.json5
 )
 
@@ -43,7 +43,7 @@ xo_add_genfacetimpl(
     TARGET xo-numeric-facetimpl-numeric-integer
     FACET_PKG xo_numeric
     FACET Numeric
-    REPR Integer
+#    REPR Integer
     INPUT idl/INumeric_DInteger.json5
 )
 
diff --git a/xo-object2/CMakeLists.txt b/xo-object2/CMakeLists.txt
index 09ebb96e..151d3ed8 100644
--- a/xo-object2/CMakeLists.txt
+++ b/xo-object2/CMakeLists.txt
@@ -32,7 +32,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-sequence-list
     FACET_PKG xo_object2
     FACET Sequence
-    REPR List
+#    REPR List
     INPUT idl/ISequence_DList.json5
 )
 
@@ -41,7 +41,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-printable-list
     FACET_PKG xo_printable2
     FACET Printable
-    REPR List
+#    REPR List
     INPUT idl/IPrintable_DList.json5
 )
 
@@ -50,7 +50,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-gcobject-list
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR List
+#    REPR List
     INPUT idl/IGCObject_DList.json5
 )
 
@@ -61,7 +61,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-printable-boolean
     FACET_PKG xo_printable2
     FACET Printable
-    REPR Boolean
+#    REPR Boolean
     INPUT idl/IPrintable_DBoolean.json5
 )
 
@@ -70,7 +70,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-gcobject-boolean
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR Boolean
+#    REPR Boolean
     INPUT idl/IGCObject_DBoolean.json5
 )
 
@@ -81,7 +81,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-printable-float
     FACET_PKG xo_printable2
     FACET Printable
-    REPR Float
+#    REPR Float
     INPUT idl/IPrintable_DFloat.json5
 )
 
@@ -90,7 +90,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-gcobject-float
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR Float
+#    REPR Float
     INPUT idl/IGCObject_DFloat.json5
 )
 
@@ -101,7 +101,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-printable-integer
     FACET_PKG xo_printable2
     FACET Printable
-    REPR Integer
+#    REPR Integer
     INPUT idl/IPrintable_DInteger.json5
 )
 
@@ -110,7 +110,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-gcobject-integer
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR Integer
+#    REPR Integer
     INPUT idl/IGCObject_DInteger.json5
 )
 
@@ -121,7 +121,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-sequence-array
     FACET_PKG xo_object2
     FACET Sequence
-    REPR Array
+#    REPR Array
     INPUT idl/ISequence_DArray.json5
 )
 
@@ -130,7 +130,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-printable-array
     FACET_PKG xo_printable2
     FACET Printable
-    REPR Array
+#    REPR Array
     INPUT idl/IPrintable_DArray.json5
 )
 
@@ -139,7 +139,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-gcobject-array
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR Array
+#    REPR Array
     INPUT idl/IGCObject_DArray.json5
 )
 
@@ -150,7 +150,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-printable-dictionary
     FACET_PKG xo_printable2
     FACET Printable
-    REPR Dictionary
+#    REPR Dictionary
     INPUT idl/IPrintable_DDictionary.json5
  )
 
@@ -159,7 +159,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-gcobject-dictionary
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR Dictionary
+#    REPR Dictionary
     INPUT idl/IGCObject_DDictionary.json5
 )
 
@@ -170,7 +170,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-printable-runtimeerror
     FACET_PKG xo_printable2
     FACET Printable
-    REPR RuntimeError
+#    REPR RuntimeError
     INPUT idl/IPrintable_DRuntimeError.json5
  )
 
@@ -179,7 +179,7 @@ xo_add_genfacetimpl(
     TARGET xo-object2-facetimpl-gcobject-runtimeerror
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR RuntimeError
+#    REPR RuntimeError
     INPUT idl/IGCObject_DRuntimeError.json5
 )
 
diff --git a/xo-object2/include/xo/object2/number/IGCObject_DInteger.hpp b/xo-object2/include/xo/object2/number/IGCObject_DInteger.hpp
index 799372ad..f2737071 100644
--- a/xo-object2/include/xo/object2/number/IGCObject_DInteger.hpp
+++ b/xo-object2/include/xo/object2/number/IGCObject_DInteger.hpp
@@ -14,8 +14,6 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
-#include <xo/alloc2/Allocator.hpp>
 #include "DInteger.hpp"
 
 namespace xo { namespace scm { class IGCObject_DInteger; } }
diff --git a/xo-procedure2/CMakeLists.txt b/xo-procedure2/CMakeLists.txt
index e902e864..eb4a0fb4 100644
--- a/xo-procedure2/CMakeLists.txt
+++ b/xo-procedure2/CMakeLists.txt
@@ -40,7 +40,7 @@ xo_add_genfacetimpl(
     TARGET xo-procedure2-facetimpl-runtimecontext-simplercx
     FACET_PKG xo_procedure2
     FACET RuntimeContext
-    REPR DSimpleRcx
+#    REPR DSimpleRcx
     INPUT idl/IRuntimeContext_DSimpleRcx.json5
     )
 
@@ -51,16 +51,16 @@ xo_add_genfacetimpl(
     TARGET xo-procedure2-facetimpl-procedure-primitive_gco_0
     FACET_PKG xo_procedure2
     FACET Procedure
-    REPR DPrimitive_gco_0
+#    REPR DPrimitive_gco_0
     INPUT idl/IProcedure_DPrimitive_gco_0.json5
 )
 
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-procedure2-facetimpl-gcobject-primitive_gco_0
-    FACET_PKG xo_gc
+    FACET_PKG xo_alloc2
     FACET GCObject
-    REPR Primitive_gco_0
+#    REPR Primitive_gco_0
     INPUT idl/IGCObject_DPrimitive_gco_0.json5
 )
 
@@ -69,7 +69,7 @@ xo_add_genfacetimpl(
     TARGET xo-procedure2-facetimpl-printable-primitive_gco_0
     FACET_PKG xo_printable2
     FACET Printable
-    REPR Primitive_gco_0
+#    REPR Primitive_gco_0
     INPUT idl/IPrintable_DPrimitive_gco_0.json5
 )
 
@@ -80,16 +80,16 @@ xo_add_genfacetimpl(
     TARGET xo-procedure2-facetimpl-procedure-primitive_gco_1_gco
     FACET_PKG xo_procedure2
     FACET Procedure
-    REPR DPrimitive_gco_1_gco
+#    REPR DPrimitive_gco_1_gco
     INPUT idl/IProcedure_DPrimitive_gco_1_gco.json5
 )
 
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-procedure2-facetimpl-gcobject-primitive_gco_1_gco
-    FACET_PKG xo_gc
+    FACET_PKG xo_alloc2
     FACET GCObject
-    REPR Primitive_gco_1_gco
+#    REPR Primitive_gco_1_gco
     INPUT idl/IGCObject_DPrimitive_gco_1_gco.json5
 )
 
@@ -98,7 +98,7 @@ xo_add_genfacetimpl(
     TARGET xo-procedure2-facetimpl-printable-primitive_gco_1_gco
     FACET_PKG xo_printable2
     FACET Printable
-    REPR Primitive_gco_1_gco
+#    REPR Primitive_gco_1_gco
     INPUT idl/IPrintable_DPrimitive_gco_1_gco.json5
 )
 
@@ -109,16 +109,16 @@ xo_add_genfacetimpl(
     TARGET xo-procedure2-facetimpl-procedure-primitive_gco_2_gco_gco
     FACET_PKG xo_procedure2
     FACET Procedure
-    REPR DPrimitive_gco_2_gco_gco
+#    REPR DPrimitive_gco_2_gco_gco
     INPUT idl/IProcedure_DPrimitive_gco_2_gco_gco.json5
 )
 
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-procedure2-facetimpl-gcobject-primitive_gco_2_gco_gco
-    FACET_PKG xo_gc
+    FACET_PKG xo_alloc2
     FACET GCObject
-    REPR Primitive_gco_2_gco_gco
+#    REPR Primitive_gco_2_gco_gco
     INPUT idl/IGCObject_DPrimitive_gco_2_gco_gco.json5
 )
 
@@ -127,7 +127,7 @@ xo_add_genfacetimpl(
     TARGET xo-procedure2-facetimpl-printable-primitive_gco_2_gco_gco
     FACET_PKG xo_printable2
     FACET Printable
-    REPR Primitive_gco_2_gco_gco
+#    REPR Primitive_gco_2_gco_gco
     INPUT idl/IPrintable_DPrimitive_gco_2_gco_gco.json5
 )
 
@@ -138,16 +138,16 @@ xo_add_genfacetimpl(
     TARGET xo-procedure2-facetimpl-procedure-primitive_gco_3_dict_string_gco
     FACET_PKG xo_procedure2
     FACET Procedure
-    REPR Dprimitive_gco_3_dict_string_gco
+#    REPR Dprimitive_gco_3_dict_string_gco
     INPUT idl/IProcedure_DPrimitive_gco_3_dict_string_gco.json5
 )
 
 # note: manual target; generated code committed to git
 xo_add_genfacetimpl(
     TARGET xo-procedure2-facetimpl-gcobject-primitive_gco_3_dict_string_gco
-    FACET_PKG xo_gc
+    FACET_PKG xo_alloc2
     FACET GCObject
-    REPR primitive_gco_3_dict_string_gco
+#    REPR primitive_gco_3_dict_string_gco
     INPUT idl/IGCObject_DPrimitive_gco_3_dict_string_gco.json5
 )
 
@@ -156,7 +156,7 @@ xo_add_genfacetimpl(
     TARGET xo-procedure2-facetimpl-printable-primitive_gco_3_dict_string_gco
     FACET_PKG xo_printable2
     FACET Printable
-    REPR primitive_gco_3_dict_string_gco
+#    REPR primitive_gco_3_dict_string_gco
     INPUT idl/IPrintable_DPrimitive_gco_3_dict_string_gco.json5
 )
 
diff --git a/xo-procedure2/include/xo/procedure2/detail/AProcedure.hpp b/xo-procedure2/include/xo/procedure2/detail/AProcedure.hpp
index a5c41b41..eb119fbd 100644
--- a/xo-procedure2/include/xo/procedure2/detail/AProcedure.hpp
+++ b/xo-procedure2/include/xo/procedure2/detail/AProcedure.hpp
@@ -15,7 +15,7 @@
 
 // includes (via {facet_includes})
 #include "RuntimeContext.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/facet/obj.hpp>
 #include <xo/facet/facet_implementation.hpp>
 #include <xo/facet/typeseq.hpp>
diff --git a/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_0.hpp b/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_0.hpp
index cfc5d192..91ff1833 100644
--- a/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_0.hpp
+++ b/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_0.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DPrimitive_gco_0.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_1_gco.hpp b/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_1_gco.hpp
index d2dd1d3e..190a92c7 100644
--- a/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_1_gco.hpp
+++ b/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_1_gco.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DPrimitive_gco_1_gco.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_2_gco_gco.hpp b/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_2_gco_gco.hpp
index 68fa0e53..f6bfe6ed 100644
--- a/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_2_gco_gco.hpp
+++ b/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_2_gco_gco.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DPrimitive_gco_2_gco_gco.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_3_dict_string_gco.hpp b/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_3_dict_string_gco.hpp
index 4f851cfa..abb30bca 100644
--- a/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_3_dict_string_gco.hpp
+++ b/xo-procedure2/include/xo/procedure2/detail/IGCObject_DPrimitive_gco_3_dict_string_gco.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "GCObject.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 #include <xo/alloc2/Allocator.hpp>
 #include "DPrimitive_gco_3_dict_string_gco.hpp"
 
@@ -64,4 +64,4 @@ namespace xo {
     } /*namespace scm*/
 } /*namespace xo*/
 
-/* end */
+/* end */
\ No newline at end of file
diff --git a/xo-procedure2/include/xo/procedure2/detail/IProcedure_Xfer.hpp b/xo-procedure2/include/xo/procedure2/detail/IProcedure_Xfer.hpp
index 59742f32..0be093fb 100644
--- a/xo-procedure2/include/xo/procedure2/detail/IProcedure_Xfer.hpp
+++ b/xo-procedure2/include/xo/procedure2/detail/IProcedure_Xfer.hpp
@@ -14,7 +14,7 @@
 #pragma once
 
 #include "RuntimeContext.hpp"
-#include <xo/alloc2/GCObject.hpp>
+#include <xo/gc/GCObject.hpp>
 
 namespace xo {
 namespace scm {
diff --git a/xo-reader2/CMakeLists.txt b/xo-reader2/CMakeLists.txt
index 8e0f1e95..6605df49 100644
--- a/xo-reader2/CMakeLists.txt
+++ b/xo-reader2/CMakeLists.txt
@@ -38,7 +38,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-toplevelseqssm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR ToplevelSeqSsm
+#    REPR ToplevelSeqSsm
     INPUT idl/ISyntaxStateMachine_DToplevelSeqSsm.json5
 )
 
@@ -47,7 +47,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-toplevelseqssm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR ToplevelSeqSsm
+#    REPR ToplevelSeqSsm
     INPUT idl/IPrintable_DToplevelSeqSsm.json5
 )
 
@@ -58,7 +58,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-definessm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR DefineSsm
+#    REPR DefineSsm
     INPUT idl/ISyntaxStateMachine_DDefineSsm.json5
 )
 
@@ -67,7 +67,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-definessm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR DefineSsm
+#    REPR DefineSsm
     INPUT idl/IPrintable_DDefineSsm.json5
 )
 
@@ -78,7 +78,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-deftypessm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR DeftypeSsm
+#    REPR DeftypeSsm
     INPUT idl/ISyntaxStateMachine_DDeftypeSsm.json5
 )
 
@@ -87,7 +87,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-deftypessm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR DeftypeSsm
+#    REPR DeftypeSsm
     INPUT idl/IPrintable_DDeftypeSsm.json5
 )
 
@@ -98,7 +98,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-lambdassm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR LambdaSsm
+#    REPR LambdaSsm
     INPUT idl/ISyntaxStateMachine_DLambdaSsm.json5
 )
 
@@ -107,7 +107,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-lambdassm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR LambdaSsm
+#    REPR LambdaSsm
     INPUT idl/IPrintable_DLambdaSsm.json5
 )
 
@@ -118,7 +118,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-parenssm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR ParenSsm
+#    REPR ParenSsm
     INPUT idl/ISyntaxStateMachine_DParenSsm.json5
 )
 
@@ -127,7 +127,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-parenssm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR ParenSsm
+#    REPR ParenSsm
     INPUT idl/IPrintable_DParenSsm.json5
 )
 
@@ -138,7 +138,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-expectformalarglistssm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR ExpectFormalArglistSsm
+#    REPR ExpectFormalArglistSsm
     INPUT idl/ISyntaxStateMachine_DExpectFormalArglistSsm.json5
 )
 
@@ -147,7 +147,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-expectformalarglistssm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR ExpectFormalArglistSsm
+#    REPR ExpectFormalArglistSsm
     INPUT idl/IPrintable_DExpectFormalArglistSsm.json5
 )
 
@@ -158,7 +158,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-expectformalargssm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR ExpectFormalArgSsm
+#    REPR ExpectFormalArgSsm
     INPUT idl/ISyntaxStateMachine_DExpectFormalArgSsm.json5
 )
 
@@ -167,7 +167,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-expectformalargssm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR ExpectFormalArgSsm
+#    REPR ExpectFormalArgSsm
     INPUT idl/IPrintable_DExpectFormalArgSsm.json5
 )
 
@@ -178,7 +178,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-ifelsessm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR IfElseSsm
+#    REPR IfElseSsm
     INPUT idl/ISyntaxStateMachine_DIfElseSsm.json5
 )
 
@@ -187,7 +187,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-ifelsessm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR IfElseSsm
+#    REPR IfElseSsm
     INPUT idl/IPrintable_DIfElseSsm.json5
 )
 
@@ -198,7 +198,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-sequencessm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR SequenceSsm
+#    REPR SequenceSsm
     INPUT idl/ISyntaxStateMachine_DSequenceSsm.json5
 )
 
@@ -207,7 +207,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-sequencessm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR SequenceSsm
+#    REPR SequenceSsm
     INPUT idl/IPrintable_DSequenceSsm.json5
 )
 
@@ -218,7 +218,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-applyssm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR ApplySsm
+#    REPR ApplySsm
     INPUT idl/ISyntaxStateMachine_DApplySsm.json5
 )
 
@@ -227,7 +227,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-applyssm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR ApplySsm
+#    REPR ApplySsm
     INPUT idl/IPrintable_DApplySsm.json5
 )
 
@@ -238,7 +238,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-expectsymbolssm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR ExpectSymbolSsm
+#    REPR ExpectSymbolSsm
     INPUT idl/ISyntaxStateMachine_DExpectSymbolSsm.json5
 )
 
@@ -247,7 +247,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-expectsymbolssm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR ExpectSymbolSsm
+#    REPR ExpectSymbolSsm
     INPUT idl/IPrintable_DExpectSymbolSsm.json5
 )
 
@@ -258,7 +258,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-expecttypessm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR ExpectTypeSsm
+#    REPR ExpectTypeSsm
     INPUT idl/ISyntaxStateMachine_DExpectTypeSsm.json5
 )
 
@@ -267,7 +267,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-expecttypessm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR ExpectTypeSsm
+#    REPR ExpectTypeSsm
     INPUT idl/IPrintable_DExpectTypeSsm.json5
 )
 
@@ -278,7 +278,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-expectexprssm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR ExpectExprSsm
+#    REPR ExpectExprSsm
     INPUT idl/ISyntaxStateMachine_DExpectExprSsm.json5
 )
 
@@ -287,7 +287,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-expectexprssm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR ExpectExprSsm
+#    REPR ExpectExprSsm
     INPUT idl/IPrintable_DExpectExprSsm.json5
 )
 
@@ -298,7 +298,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-progressssm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR ProgressSsm
+#    REPR ProgressSsm
     INPUT idl/ISyntaxStateMachine_DProgressSsm.json5
 )
 
@@ -307,7 +307,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-progressssm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR ProgressSsm
+#    REPR ProgressSsm
     INPUT idl/IPrintable_DProgressSsm.json5
 )
 
@@ -318,7 +318,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-quotessm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR QuoteSsm
+#    REPR QuoteSsm
     INPUT idl/ISyntaxStateMachine_DQuoteSsm.json5
 )
 
@@ -327,7 +327,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-quotessm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR QuoteSsm
+#    REPR QuoteSsm
     INPUT idl/IPrintable_DQuoteSsm.json5
 )
 
@@ -338,7 +338,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-expectqliteralssm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR ExpectQLiteralSsm
+#    REPR ExpectQLiteralSsm
     INPUT idl/ISyntaxStateMachine_DExpectQLiteralSsm.json5
 )
 
@@ -347,7 +347,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-expectqliteralssm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR ExpectQLiteralSsm
+#    REPR ExpectQLiteralSsm
     INPUT idl/IPrintable_DExpectQLiteralSsm.json5
 )
 
@@ -358,7 +358,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-expectqlistssm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR ExpectQListSsm
+#    REPR ExpectQListSsm
     INPUT idl/ISyntaxStateMachine_DExpectQListSsm.json5
 )
 
@@ -367,7 +367,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-expectqlistssm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR ExpectQListSsm
+#    REPR ExpectQListSsm
     INPUT idl/IPrintable_DExpectQListSsm.json5
 )
 
@@ -378,7 +378,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-syntaxstatemachine-expectqarrayssm
     FACET_PKG xo_reader2
     FACET SyntaxStateMachine
-    REPR ExpectQArraySsm
+#    REPR ExpectQArraySsm
     INPUT idl/ISyntaxStateMachine_DExpectQArraySsm.json5
 )
 
@@ -387,7 +387,7 @@ xo_add_genfacetimpl(
     TARGET xo-reader2-facetimpl-printable-expectqarrayssm
     FACET_PKG xo_printable2
     FACET Printable
-    REPR ExpectQArraySsm
+#    REPR ExpectQArraySsm
     INPUT idl/IPrintable_DExpectQArraySsm.json5
 )
 
diff --git a/xo-stringtable2/CMakeLists.txt b/xo-stringtable2/CMakeLists.txt
index 2c2a6962..deeb3a70 100644
--- a/xo-stringtable2/CMakeLists.txt
+++ b/xo-stringtable2/CMakeLists.txt
@@ -24,7 +24,7 @@ xo_add_genfacetimpl(
     TARGET xo-stringtable2-facetimpl-gcobject-string
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR String
+#    REPR String
     INPUT idl/IGCObject_DString.json5
 )
 
@@ -33,7 +33,7 @@ xo_add_genfacetimpl(
     TARGET xo-stringtable2-facetimpl-printable-string
     FACET_PKG xo_printable2
     FACET Printable
-    REPR String
+#    REPR String
     INPUT idl/IPrintable_DString.json5
 )
 
@@ -44,7 +44,7 @@ xo_add_genfacetimpl(
     TARGET xo-stringtable2-facetimpl-gcobject-uniquestring
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR UniqueString
+#    REPR UniqueString
     INPUT idl/IGCObject_DUniqueString.json5
 )
 
@@ -53,7 +53,7 @@ xo_add_genfacetimpl(
     TARGET xo-stringtable2-facetimpl-printable-uniquestring
     FACET_PKG xo_printable2
     FACET Printable
-    REPR UniqueString
+#    REPR UniqueString
     INPUT idl/IPrintable_DUniqueString.json5
 )
 
diff --git a/xo-type/CMakeLists.txt b/xo-type/CMakeLists.txt
index 82cdc685..bfa7668d 100644
--- a/xo-type/CMakeLists.txt
+++ b/xo-type/CMakeLists.txt
@@ -35,7 +35,7 @@ xo_add_genfacetimpl(
     TARGET xo-type-facetimpl-type-atomictype
     FACET_PKG xo_type
     FACET Type
-    REPR AtomicType
+#    REPR AtomicType
     INPUT idl/IType_DAtomicType.json5
 )
 
@@ -44,7 +44,7 @@ xo_add_genfacetimpl(
     TARGET xo-type-facetimpl-gcobject-atomictype
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR AtomicType
+#    REPR AtomicType
     INPUT idl/IGCObject_DAtomicType.json5
 )
 
@@ -55,7 +55,7 @@ xo_add_genfacetimpl(
     TARGET xo-type-facetimpl-type-listtype
     FACET_PKG xo_type
     FACET Type
-    REPR ListType
+#    REPR ListType
     INPUT idl/IType_DListType.json5
 )
 
@@ -64,7 +64,7 @@ xo_add_genfacetimpl(
     TARGET xo-type-facetimpl-gcobject-listtype
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR ListType
+#    REPR ListType
     INPUT idl/IGCObject_DListType.json5
 )
 
@@ -75,7 +75,7 @@ xo_add_genfacetimpl(
     TARGET xo-type-facetimpl-type-arraytype
     FACET_PKG xo_type
     FACET Type
-    REPR ArrayType
+#    REPR ArrayType
     INPUT idl/IType_DArrayType.json5
 )
 
@@ -84,7 +84,7 @@ xo_add_genfacetimpl(
     TARGET xo-type-facetimpl-gcobject-arraytype
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR ArrayType
+#    REPR ArrayType
     INPUT idl/IGCObject_DArrayType.json5
 )
 
@@ -95,7 +95,7 @@ xo_add_genfacetimpl(
     TARGET xo-type-facetimpl-type-functiontype
     FACET_PKG xo_type
     FACET Type
-    REPR FunctionType
+#    REPR FunctionType
     INPUT idl/IType_DFunctionType.json5
 )
 
@@ -104,7 +104,7 @@ xo_add_genfacetimpl(
     TARGET xo-type-facetimpl-gcobject-functiontype
     FACET_PKG xo_alloc2
     FACET GCObject
-    REPR FunctionType
+#    REPR FunctionType
     INPUT idl/IGCObject_DFunctionType.json5
 )