diff --git a/backends/test/harness/TARGETS b/backends/test/harness/BUCK
similarity index 64%
rename from backends/test/harness/TARGETS
rename to backends/test/harness/BUCK
index 2799aedb7b5..d432aa6dc3d 100644
--- a/backends/test/harness/TARGETS
+++ b/backends/test/harness/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 = "tester",
     srcs = native.glob(["*.py", "stages/*.py"]),
     visibility = ["PUBLIC"],
diff --git a/backends/test/suite/BUCK b/backends/test/suite/BUCK
new file mode 100644
index 00000000000..18a7fe3324a
--- /dev/null
+++ b/backends/test/suite/BUCK
@@ -0,0 +1,4 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
+load(":targets.bzl", "define_common_targets")
+
+fbcode_target(_kind = define_common_targets,is_fbcode = True)
diff --git a/backends/test/suite/TARGETS b/backends/test/suite/TARGETS
deleted file mode 100644
index 8832b48d98a..00000000000
--- a/backends/test/suite/TARGETS
+++ /dev/null
@@ -1,3 +0,0 @@
-load(":targets.bzl", "define_common_targets")
-
-define_common_targets(is_fbcode = True)
diff --git a/backends/transforms/BUCK b/backends/transforms/BUCK
new file mode 100644
index 00000000000..f5029903c21
--- /dev/null
+++ b/backends/transforms/BUCK
@@ -0,0 +1,6 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
+load(":targets.bzl", "define_common_targets")
+
+oncall("executorch")
+
+fbcode_target(_kind = define_common_targets,)
diff --git a/backends/transforms/TARGETS b/backends/transforms/TARGETS
deleted file mode 100644
index 0a42614a385..00000000000
--- a/backends/transforms/TARGETS
+++ /dev/null
@@ -1,5 +0,0 @@
-load(":targets.bzl", "define_common_targets")
-
-oncall("executorch")
-
-define_common_targets()
diff --git a/backends/vulkan/BUCK b/backends/vulkan/BUCK
index 1e8cc179228..c4ea0e8bd94 100644
--- a/backends/vulkan/BUCK
+++ b/backends/vulkan/BUCK
@@ -1,8 +1,15 @@
+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/vulkan/TARGETS was merged into this file, see https://fburl.com/workplace/xl8l9yuo for more info !!!!
+
+load(":targets.bzl", "define_common_targets")
+
+fbcode_target(_kind = define_common_targets,is_fbcode = True)
diff --git a/backends/vulkan/TARGETS b/backends/vulkan/TARGETS
deleted file mode 100644
index 41893d29274..00000000000
--- a/backends/vulkan/TARGETS
+++ /dev/null
@@ -1,4 +0,0 @@
-load(":targets.bzl", "define_common_targets")
-oncall("executorch")
-
-define_common_targets(is_fbcode = True)
diff --git a/backends/vulkan/_passes/TARGETS b/backends/vulkan/_passes/BUCK
similarity index 86%
rename from backends/vulkan/_passes/TARGETS
rename to backends/vulkan/_passes/BUCK
index 453b4814637..643ec2cc917 100644
--- a/backends/vulkan/_passes/TARGETS
+++ b/backends/vulkan/_passes/BUCK
@@ -1,9 +1,10 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
 load("@fbcode_macros//build_defs:python_unittest.bzl", "python_unittest")
 load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
 
 oncall("executorch")
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "fuse_quantized_ops",
     srcs = ["fuse_quantized_ops.py"],
     visibility = [
@@ -20,7 +21,7 @@ runtime.python_library(
     ],
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "insert_prepack_nodes",
     srcs = ["insert_prepack_nodes.py"],
     visibility = [
@@ -34,7 +35,7 @@ runtime.python_library(
     ],
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "squeeze_unsqueeze_inputs",
     srcs = [
         "squeeze_unsqueeze_inputs.py",
@@ -50,7 +51,7 @@ runtime.python_library(
     ]
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "remove_asserts",
     srcs = ["remove_asserts.py"],
     visibility = [
@@ -63,7 +64,7 @@ runtime.python_library(
     ],
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "remove_redundant_ops",
     srcs = ["remove_redundant_ops.py"],
     visibility = [
@@ -76,7 +77,7 @@ runtime.python_library(
     ],
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "tag_memory_meta_pass",
     srcs = ["tag_memory_meta_pass.py"],
     visibility = [
@@ -91,7 +92,7 @@ runtime.python_library(
     ],
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "fold_qdq",
     srcs = ["fold_qdq.py"],
     visibility = [
@@ -104,7 +105,7 @@ runtime.python_library(
     ],
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "fuse_patterns",
     srcs = ["fuse_patterns.py"],
     visibility = [
@@ -120,7 +121,7 @@ runtime.python_library(
     typing = True,
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "vulkan_passes",
     srcs = [
         "__init__.py",
diff --git a/backends/vulkan/partitioner/TARGETS b/backends/vulkan/partitioner/BUCK
similarity index 83%
rename from backends/vulkan/partitioner/TARGETS
rename to backends/vulkan/partitioner/BUCK
index 3177ed2807e..18ff58c0a75 100644
--- a/backends/vulkan/partitioner/TARGETS
+++ b/backends/vulkan/partitioner/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 = "vulkan_partitioner",
     srcs = [
         "vulkan_partitioner.py",
diff --git a/backends/vulkan/patterns/TARGETS b/backends/vulkan/patterns/BUCK
similarity index 83%
rename from backends/vulkan/patterns/TARGETS
rename to backends/vulkan/patterns/BUCK
index 3baf7c9e251..a7153b30967 100644
--- a/backends/vulkan/patterns/TARGETS
+++ b/backends/vulkan/patterns/BUCK
@@ -1,9 +1,10 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
 load("@fbcode_macros//build_defs:python_unittest.bzl", "python_unittest")
 load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
 
 oncall("executorch")
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "vulkan_patterns",
     srcs = [
         "__init__.py",
diff --git a/backends/vulkan/quantizer/TARGETS b/backends/vulkan/quantizer/BUCK
similarity index 66%
rename from backends/vulkan/quantizer/TARGETS
rename to backends/vulkan/quantizer/BUCK
index be70bafb670..04fbd1ff4b3 100644
--- a/backends/vulkan/quantizer/TARGETS
+++ b/backends/vulkan/quantizer/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 = "vulkan_quantizer",
     srcs = ["vulkan_quantizer.py"],
     deps = [
@@ -11,7 +12,7 @@ runtime.python_library(
     ],
 )
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "vulkan_quantizer_utils",
     srcs = ["vulkan_quantizer_utils.py"],
     deps = [
diff --git a/backends/vulkan/serialization/BUCK b/backends/vulkan/serialization/BUCK
index 6cbd0fa8fac..414cd9c81e4 100644
--- a/backends/vulkan/serialization/BUCK
+++ b/backends/vulkan/serialization/BUCK
@@ -1,4 +1,11 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
 load(":targets.bzl", "define_common_targets")
 oncall("executorch")
 
-define_common_targets()
+non_fbcode_target(_kind = define_common_targets,)
+
+# !!!! fbcode/executorch/backends/vulkan/serialization/TARGETS was merged into this file, see https://fburl.com/workplace/xl8l9yuo for more info !!!!
+
+load(":targets.bzl", "define_common_targets")
+
+fbcode_target(_kind = define_common_targets,is_fbcode = True)
diff --git a/backends/vulkan/serialization/TARGETS b/backends/vulkan/serialization/TARGETS
deleted file mode 100644
index 41893d29274..00000000000
--- a/backends/vulkan/serialization/TARGETS
+++ /dev/null
@@ -1,4 +0,0 @@
-load(":targets.bzl", "define_common_targets")
-oncall("executorch")
-
-define_common_targets(is_fbcode = True)