diff --git a/submodules/ManagedFile/Package.swift b/submodules/ManagedFile/Package.swift
new file mode 100644
index 0000000000..cb1e71c0d3
--- /dev/null
+++ b/submodules/ManagedFile/Package.swift
@@ -0,0 +1,28 @@
+// swift-tools-version:5.5
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "ManagedFile",
+    platforms: [.macOS(.v10_11)],
+    products: [
+        // Products define the executables and libraries a package produces, and make them visible to other packages.
+        .library(
+            name: "ManagedFile",
+            targets: ["ManagedFile"]),
+    ],
+    dependencies: [
+        // Dependencies declare other packages that this package depends on.
+        // .package(url: /* package url */, from: "1.0.0"),
+    ],
+    targets: [
+        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
+        // Targets can depend on other targets in this package, and on products in packages this package depends on.
+        .target(
+            name: "ManagedFile",
+            dependencies: [],
+            path: ".",
+            exclude: ["BUILD"]),
+    ]
+)
diff --git a/submodules/Postbox/Package.swift b/submodules/Postbox/Package.swift
index cc6ef02c84..5b5c81e392 100644
--- a/submodules/Postbox/Package.swift
+++ b/submodules/Postbox/Package.swift
@@ -19,6 +19,7 @@ let package = Package(
         .package(name: "Crc32", path: "../Crc32"),
         .package(name: "sqlcipher", path: "../sqlcipher"),
         .package(name: "StringTransliteration", path: "../StringTransliteration"),
+        .package(name: "ManagedFile", path: "../ManagedFile"),
         .package(name: "SSignalKit", path: "../SSignalKit"),
     ],
     targets: [
@@ -28,6 +29,7 @@ let package = Package(
             name: "Postbox",
             dependencies: [.product(name: "MurMurHash32", package: "MurMurHash32", condition: nil),
                             .product(name: "SwiftSignalKit", package: "SSignalKit", condition: nil),
+                           .product(name: "ManagedFile", package: "ManagedFile", condition: nil),
                            .product(name: "sqlcipher", package: "sqlcipher", condition: nil),
                            .product(name: "StringTransliteration", package: "StringTransliteration", condition: nil),
                            .product(name: "Crc32", package: "Crc32", condition: nil)],
diff --git a/submodules/YuvConversion/Package.swift b/submodules/YuvConversion/Package.swift
new file mode 100644
index 0000000000..c3c9f861f3
--- /dev/null
+++ b/submodules/YuvConversion/Package.swift
@@ -0,0 +1,32 @@
+// swift-tools-version:5.5
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "YuvConversion",
+    platforms: [.macOS(.v10_11)],
+    products: [
+        // Products define the executables and libraries a package produces, and make them visible to other packages.
+        .library(
+            name: "YuvConversion",
+            targets: ["YuvConversion"]),
+    ],
+    dependencies: [
+        // Dependencies declare other packages that this package depends on.
+        // .package(url: /* package url */, from: "1.0.0"),
+    ],
+    targets: [
+        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
+        // Targets can depend on other targets in this package, and on products in packages this package depends on.
+        .target(
+            name: "YuvConversion",
+            dependencies: [],
+            path: ".",
+            exclude: ["BUILD"],
+            publicHeadersPath: "PublicHeaders",
+            cSettings: [
+                .headerSearchPath("PublicHeaders")
+            ]),
+    ]
+)