diff --git a/kernel/kernel.h b/kernel/kernel.h
index 70fa5f9..03e6479 100644
--- a/kernel/kernel.h
+++ b/kernel/kernel.h
@@ -191,9 +191,6 @@ extern "C" {
 #include <shared/partitions.cpp>
 #include <shared/heap.cpp>
 
-#define ARRAY_IMPLEMENTATION_ONLY
-#include <shared/array.cpp>
-
 #define SHARED_COMMON_WANT_ALL
 #include <shared/strings.cpp>
 #include <shared/common.cpp>
diff --git a/kernel/module.h b/kernel/module.h
index 197397e..f13851a 100644
--- a/kernel/module.h
+++ b/kernel/module.h
@@ -60,6 +60,7 @@ extern EsHeap heapFixed;
 
 void *EsHeapAllocate(size_t size, bool zeroMemory, EsHeap *kernelHeap);
 void EsHeapFree(void *address, size_t expectedSize, EsHeap *kernelHeap);
+void *EsHeapReallocate(void *oldAddress, size_t newAllocationSize, bool zeroNewSpace, EsHeap *_heap);
 
 // ---------------------------------------------------------------------------------------------------------------
 // Debug output.
@@ -108,9 +109,11 @@ void KUnregisterMSI(uintptr_t tag);
 
 #ifndef K_IN_CORE_KERNEL
 #define SHARED_DEFINITIONS_ONLY
+#define ARRAY_DEFINITIONS_ONLY
 #endif
 #include <shared/unicode.cpp>
 #include <shared/linked_list.cpp>
+#include <shared/array.cpp>
 
 uint32_t CalculateCRC32(const void *_buffer, size_t length, uint32_t carry);
 uint64_t CalculateCRC64(const void *_buffer, size_t length, uint64_t carry);
@@ -387,10 +390,6 @@ void *MMMapShared(MMSpace *space, MMSharedRegion *sharedRegion, uintptr_t offset
 // Panics on failure.
 void MMCheckUnusable(uintptr_t physicalStart, size_t bytes);
 
-#define ARRAY_DEFINITIONS_ONLY
-#include <shared/array.cpp>
-#undef ARRAY_DEFINITIONS_ONLY
-
 typedef SimpleList MMObjectCacheItem;
 
 struct MMObjectCache {
diff --git a/kernel/objects.cpp b/kernel/objects.cpp
index d9c47d4..0992144 100644
--- a/kernel/objects.cpp
+++ b/kernel/objects.cpp
@@ -22,7 +22,7 @@ struct ConstantBuffer {
 struct Pipe {
 #define PIPE_READER (1)
 #define PIPE_WRITER (2)
-#define PIPE_BUFFER_SIZE (K_PAGE_SIZE)
+#define PIPE_BUFFER_SIZE (256)
 #define PIPE_CLOSED (0)
 
 	volatile char buffer[PIPE_BUFFER_SIZE];
diff --git a/shared/array.cpp b/shared/array.cpp
index 63865cf..a94cebb 100644
--- a/shared/array.cpp
+++ b/shared/array.cpp
@@ -2,8 +2,6 @@
 // It is released under the terms of the MIT license -- see LICENSE.md.
 // Written by: nakst.
 
-#ifndef ARRAY_IMPLEMENTATION_ONLY
-
 struct _ArrayHeader {
 	size_t length, allocated;
 };
@@ -88,8 +86,6 @@ struct Array {
 	}
 };
 
-#endif
-
 #ifndef ARRAY_DEFINITIONS_ONLY
 
 bool _ArrayMaybeInitialise(void **array, size_t itemSize, EsHeap *heap) {
diff --git a/util/x11/build.sh b/util/x11/build.sh
index 9f6cf8e..9ddf1ac 100755
--- a/util/x11/build.sh
+++ b/util/x11/build.sh
@@ -4,4 +4,4 @@ mkdir -p bin/include_x11
 cp root/Applications/POSIX/include/essence.h bin/include_x11
 cp root/Essence/Desktop.esx bin/bundle.dat
 ld -r -b binary -o bin/Object\ Files/bundle.o bin/bundle.dat
-g++ -o bin/hello_x11 util/x11/platform.cpp $1 bin/Object\ Files/bundle.o -lfreetype -lharfbuzz -lX11 -pthread -g -fno-exceptions -Ibin/include_x11 -I. -I/usr/include/freetype2 -DNO_API_TABLE -DUSE_PLATFORM_HEAP -DUSE_FREETYPE_AND_HARFBUZZ -DUSE_STB_SPRINTF -D_start=_StartApplication -D_init=EsHeapValidate -DES_FORWARD -Wall -Wextra -Wno-empty-body -Wno-deprecated-declarations -Wno-unknown-pragmas -Wno-missing-field-initializers -Wno-unused-parameter -Wno-unused-variable -Wno-unused-function -fsanitize=address
+g++ -o bin/hello_x11 util/x11/platform.cpp $1 bin/Object\ Files/bundle.o -lfreetype -lharfbuzz -lX11 -pthread -g -fno-exceptions -Ibin/include_x11 -I. -I/usr/include/freetype2 -DNO_API_TABLE -DUSE_PLATFORM_HEAP -DUSE_FREETYPE_AND_HARFBUZZ -DUSE_STB_SPRINTF -D_start=_StartApplication -D_init=EsHeapValidate -DES_FORWARD -DARRAY_DEFINITIONS_ONLY -Wall -Wextra -Wno-empty-body -Wno-deprecated-declarations -Wno-unknown-pragmas -Wno-missing-field-initializers -Wno-unused-parameter -Wno-unused-variable -Wno-unused-function -fsanitize=address
diff --git a/util/x11/platform.cpp b/util/x11/platform.cpp
index 3734424..92f75b0 100644
--- a/util/x11/platform.cpp
+++ b/util/x11/platform.cpp
@@ -2,6 +2,7 @@
 #undef ES_FORWARD
 #define Font _Font
 #define _start _StartDesktop
+#undef ARRAY_DEFINITIONS_ONLY
 #include <desktop/api.cpp>
 #undef _start
 #undef Font