diff --git a/.buckconfig b/.buckconfig
new file mode 100644
index 00000000000..c6169e406f0
--- /dev/null
+++ b/.buckconfig
@@ -0,0 +1,26 @@
+[et]
+  is_oss=1
+
+[buildfile]
+  name = BUCK.oss
+  includes = //tools/build_defs/select.bzl
+
+[repositories]
+  bazel_skylib = third_party/bazel-skylib/
+  ovr_config = .
+
+[download]
+  in_build = true
+
+[cxx]
+  cxxflags = -std=c++17
+  ldflags = -Wl,--no-undefined
+  should_remap_host_platform = true
+  cpp = /usr/bin/clang
+  cc = /usr/bin/clang
+  cxx = /usr/bin/clang++
+  cxxpp = /usr/bin/clang++
+  ld = /usr/bin/clang++
+
+[project]
+  default_flavors_mode=all
\ No newline at end of file
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000000..faecebbf32d
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "prelude"]
+	path = prelude
+	url = https://github.com/facebook/buck2-prelude.git
diff --git a/prelude b/prelude
new file mode 160000
index 00000000000..bd7481e2b98
--- /dev/null
+++ b/prelude
@@ -0,0 +1 @@
+Subproject commit bd7481e2b9883d10200e8fb5caeaad4e2271e423
diff --git a/profiler/BUCK.oss b/profiler/BUCK.oss
new file mode 100644
index 00000000000..bbce14b9d92
--- /dev/null
+++ b/profiler/BUCK.oss
@@ -0,0 +1,3 @@
+load(":targets.bzl", "define_common_targets")
+
+define_common_targets()
\ No newline at end of file
diff --git a/runtime/platform/BUCK.oss b/runtime/platform/BUCK.oss
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/shim/BUCK b/shim/BUCK
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/shim/xplat/executorch/build/runtime_wrapper.bzl b/shim/xplat/executorch/build/runtime_wrapper.bzl
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/shim/xplat/executorch/build/selects.bzl b/shim/xplat/executorch/build/selects.bzl
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/shim/xplat/executorch/build/type_defs.bzl b/shim/xplat/executorch/build/type_defs.bzl
new file mode 100644
index 00000000000..e69de29bb2d