diff --git a/DIR_METADATA b/DIR_METADATA
new file mode 100644
index 0000000..fe952b8
--- /dev/null
+++ b/DIR_METADATA
@@ -0,0 +1,21 @@
+# Metadata information for this directory.
+#
+# For more information on DIR_METADATA files, see:
+#   https://source.chromium.org/chromium/infra/infra/+/HEAD:go/src/infra/tools/dirmd/README.md
+#
+# For the schema of this file, see Metadata message:
+#   https://source.chromium.org/chromium/infra/infra/+/HEAD:go/src/infra/tools/dirmd/proto/dir_metadata.proto
+
+team_email: "chromeos-toolchain@google.com"
+
+buganizer {
+  # https://b.corp.google.com/issues?q=status:open%20componentid:1034879
+  # ChromeOS > Infra > Toolchain
+  component_id: 1034879
+}
+
+buganizer_public {
+  # https://b.corp.google.com/issues?q=status:open%20componentid:1038090
+  # ChromeOS Public Tracker > Services > Infra > Toolchain
+  component_id: 1038090
+}
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..7f98846
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,2 @@
+include chromiumos/overlays/portage-stable:/OWNERS.general
+include chromiumos/third_party/toolchain-utils:/OWNERS.toolchain
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..cd6510c
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# CrOS Toolchains Overlay
+
+This overlay holds the various CrOS toolchain packages.
diff --git a/metadata/OWNERS b/metadata/OWNERS
new file mode 100644
index 0000000..f6773ed
--- /dev/null
+++ b/metadata/OWNERS
@@ -0,0 +1,2 @@
+# Bot that commits cache updates.
+include chromiumos/owners:v1:/bots/OWNERS.metadata_cache
diff --git a/metadata/layout.conf b/metadata/layout.conf
new file mode 100644
index 0000000..4a7f101
--- /dev/null
+++ b/metadata/layout.conf
@@ -0,0 +1,7 @@
+cache-format = md5-dict
+masters = portage-stable chromiumos
+profile-formats = portage-2 profile-default-eapi
+profile_eapi_when_unspecified = 5-progress
+repo-name = toolchains
+thin-manifests = true
+use-manifests = strict
diff --git a/metadata/md5-cache/OWNERS b/metadata/md5-cache/OWNERS
new file mode 100644
index 0000000..1ae1238
--- /dev/null
+++ b/metadata/md5-cache/OWNERS
@@ -0,0 +1,2 @@
+# Contents in here are generated.
+*