diff --git a/shim/third-party/brotli/BUCK b/shim/third-party/brotli/BUCK
new file mode 100644
index 00000000000..95ebd06aa4b
--- /dev/null
+++ b/shim/third-party/brotli/BUCK
@@ -0,0 +1,22 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
+load("@shim//third-party:third_party.bzl", "third_party_library")
+
+oncall("open_source")
+
+third_party_library(
+    name = "brotlidec",
+    homebrew_package_name = "brotli",
+    pkgconfig_name = "libbrotlidec",
+)
+
+third_party_library(
+    name = "brotlienc",
+    homebrew_package_name = "brotli",
+    pkgconfig_name = "libbrotlienc",
+)
diff --git a/shim/third-party/jvm/BUCK b/shim/third-party/jvm/BUCK
new file mode 100644
index 00000000000..9de6e20cf29
--- /dev/null
+++ b/shim/third-party/jvm/BUCK
@@ -0,0 +1,15 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
+load("@shim//third-party:third_party.bzl", "third_party_library")
+
+oncall("open_source")
+
+third_party_library(
+    name = "jvm",
+    homebrew_package_name = "openjdk",
+)
diff --git a/shim/third-party/libaegis/BUCK b/shim/third-party/libaegis/BUCK
new file mode 100644
index 00000000000..8ac657a1717
--- /dev/null
+++ b/shim/third-party/libaegis/BUCK
@@ -0,0 +1,15 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
+load("@shim//third-party:third_party.bzl", "third_party_library")
+
+oncall("open_source")
+
+third_party_library(
+    name = "aegis",
+    pkgconfig_name = "libaegis",
+)
diff --git a/shim/third-party/liboqs/BUCK b/shim/third-party/liboqs/BUCK
new file mode 100644
index 00000000000..c56ee25129e
--- /dev/null
+++ b/shim/third-party/liboqs/BUCK
@@ -0,0 +1,15 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
+load("@shim//third-party:third_party.bzl", "third_party_library")
+
+oncall("open_source")
+
+third_party_library(
+    name = "oqs",
+    pkgconfig_name = "liboqs",
+)