diff --git a/backends/xnnpack/BUCK b/backends/xnnpack/BUCK
index 1e8cc179228..1e12548bc4c 100644
--- a/backends/xnnpack/BUCK
+++ b/backends/xnnpack/BUCK
@@ -1,8 +1,47 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
+oncall("executorch")
 # Any targets that should be shared between fbcode and xplat must be defined in
 # targets.bzl. This file can contain xplat-only targets.
 
 load(":targets.bzl", "define_common_targets")
 
-oncall("executorch")
 
-define_common_targets()
+non_fbcode_target(_kind = define_common_targets,)
+
+# !!!! fbcode/executorch/backends/xnnpack/TARGETS was merged into this file, see https://fburl.com/workplace/xl8l9yuo for more info !!!!
+
+load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
+load(":targets.bzl", "define_common_targets")
+
+
+fbcode_target(_kind = define_common_targets,)
+
+fbcode_target(_kind = runtime.python_library,
+    name = "xnnpack_preprocess",
+    srcs = [
+        "xnnpack_preprocess.py",
+    ],
+    visibility = ["PUBLIC"],
+    deps = [
+        "//executorch/backends/transforms:lib",
+        "//executorch/backends/transforms:remove_getitem_op",
+        "//executorch/backends/xnnpack/_passes:xnnpack_passes",
+        "//executorch/backends/xnnpack/operators:operators",
+        "//executorch/backends/xnnpack/serialization:xnnpack_serializer",
+        "//executorch/exir:graph_module",
+        "//executorch/exir/backend:backend_details",
+    ],
+)
+
+fbcode_target(_kind = runtime.python_library,
+    name = "xnnpack_delegate",
+    srcs = [
+        "__init__.py",
+    ],
+    visibility = ["PUBLIC"],
+    deps = [
+        ":xnnpack_preprocess",
+        "//executorch/backends/xnnpack/partition:xnnpack_partitioner",
+        "//executorch/backends/xnnpack/utils:xnnpack_utils",
+    ],
+)
diff --git a/backends/xnnpack/TARGETS b/backends/xnnpack/TARGETS
deleted file mode 100644
index 4a9fc70cc97..00000000000
--- a/backends/xnnpack/TARGETS
+++ /dev/null
@@ -1,36 +0,0 @@
-load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
-load(":targets.bzl", "define_common_targets")
-
-oncall("executorch")
-
-define_common_targets()
-
-runtime.python_library(
-    name = "xnnpack_preprocess",
-    srcs = [
-        "xnnpack_preprocess.py",
-    ],
-    visibility = ["PUBLIC"],
-    deps = [
-        "//executorch/backends/transforms:lib",
-        "//executorch/backends/transforms:remove_getitem_op",
-        "//executorch/backends/xnnpack/_passes:xnnpack_passes",
-        "//executorch/backends/xnnpack/operators:operators",
-        "//executorch/backends/xnnpack/serialization:xnnpack_serializer",
-        "//executorch/exir:graph_module",
-        "//executorch/exir/backend:backend_details",
-    ],
-)
-
-runtime.python_library(
-    name = "xnnpack_delegate",
-    srcs = [
-        "__init__.py",
-    ],
-    visibility = ["PUBLIC"],
-    deps = [
-        ":xnnpack_preprocess",
-        "//executorch/backends/xnnpack/partition:xnnpack_partitioner",
-        "//executorch/backends/xnnpack/utils:xnnpack_utils",
-    ],
-)
diff --git a/backends/xnnpack/_passes/TARGETS b/backends/xnnpack/_passes/BUCK
similarity index 86%
rename from backends/xnnpack/_passes/TARGETS
rename to backends/xnnpack/_passes/BUCK
index 4977ad08936..2edf294fa4e 100644
--- a/backends/xnnpack/_passes/TARGETS
+++ b/backends/xnnpack/_passes/BUCK
@@ -1,8 +1,9 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
 load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
 
 oncall("executorch")
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "xnnpack_passes",
     srcs = native.glob(["*.py"]),
     deps = [
diff --git a/backends/xnnpack/operators/TARGETS b/backends/xnnpack/operators/BUCK
similarity index 71%
rename from backends/xnnpack/operators/TARGETS
rename to backends/xnnpack/operators/BUCK
index f6d48a8a45f..fdc2ed1db49 100644
--- a/backends/xnnpack/operators/TARGETS
+++ b/backends/xnnpack/operators/BUCK
@@ -1,8 +1,9 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
 load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
 
 oncall("executorch")
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "operators",
     srcs = glob(["*.py"]),
     visibility = ["PUBLIC"],
diff --git a/backends/xnnpack/partition/TARGETS b/backends/xnnpack/partition/BUCK
similarity index 81%
rename from backends/xnnpack/partition/TARGETS
rename to backends/xnnpack/partition/BUCK
index bb052902fed..2581043d5b2 100644
--- a/backends/xnnpack/partition/TARGETS
+++ b/backends/xnnpack/partition/BUCK
@@ -1,8 +1,9 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
 load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
 
 oncall("executorch")
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "xnnpack_partitioner",
     srcs = [
         "xnnpack_partitioner.py",
@@ -20,7 +21,7 @@ runtime.python_library(
     ],
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "partitioner_graphs",
     srcs = glob([
         "graphs/*.py",