diff --git a/backends/arm/debug/TARGETS b/backends/arm/debug/BUCK
similarity index 65%
rename from backends/arm/debug/TARGETS
rename to backends/arm/debug/BUCK
index a88e3b077cd..bfc28e9df77 100644
--- a/backends/arm/debug/TARGETS
+++ b/backends/arm/debug/BUCK
@@ -1,7 +1,8 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
 # @noautodeps
 load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "schema",
     srcs = [
         "__init__.py",
diff --git a/backends/arm/operator_support/TARGETS b/backends/arm/operator_support/BUCK
similarity index 76%
rename from backends/arm/operator_support/TARGETS
rename to backends/arm/operator_support/BUCK
index 8f6721bd911..b007868866d 100644
--- a/backends/arm/operator_support/TARGETS
+++ b/backends/arm/operator_support/BUCK
@@ -1,6 +1,7 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
 load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "operator_support",
     srcs = glob(["*.py"]),
     deps = [
diff --git a/backends/arm/operators/TARGETS b/backends/arm/operators/BUCK
similarity index 75%
rename from backends/arm/operators/TARGETS
rename to backends/arm/operators/BUCK
index 38eb9e7cad9..867e062596f 100644
--- a/backends/arm/operators/TARGETS
+++ b/backends/arm/operators/BUCK
@@ -1,7 +1,8 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
 # @noautodeps
 load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "node_visitor",
     srcs = ["node_visitor.py"],
     deps = [
@@ -11,12 +12,12 @@ runtime.python_library(
     ],
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "operator_validation_utils",
     srcs = ["operator_validation_utils.py"],
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "ops",
     srcs = glob(["op_*.py", "ops_*.py"]),
     deps = [
@@ -30,7 +31,7 @@ runtime.python_library(
     ],
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "lib",
     srcs = ["__init__.py"],
     deps = [
diff --git a/backends/arm/quantizer/TARGETS b/backends/arm/quantizer/BUCK
similarity index 76%
rename from backends/arm/quantizer/TARGETS
rename to backends/arm/quantizer/BUCK
index 1a02340f92b..e49040c3b7b 100644
--- a/backends/arm/quantizer/TARGETS
+++ b/backends/arm/quantizer/BUCK
@@ -1,7 +1,8 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
 load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
 
 # Exposed through __init__.py
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "quantization_config",
     srcs = ["quantization_config.py"],
     deps = [
@@ -11,7 +12,7 @@ runtime.python_library(
 )
 
 # Exposed through __init__.py
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "arm_quantizer",
     srcs = ["arm_quantizer.py"],
     deps = [
@@ -23,7 +24,7 @@ runtime.python_library(
     ],
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "quantization_annotator",
     srcs = ["quantization_annotator.py"],
     deps = [
@@ -34,7 +35,7 @@ runtime.python_library(
     ],
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "arm_quantizer_utils",
     srcs = ["arm_quantizer_utils.py"],
     deps = [
@@ -43,7 +44,7 @@ runtime.python_library(
     ],
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "lib",
     srcs = ["__init__.py"],
     deps = [