diff --git a/Binaries/harmony_uniffiFFI.xcframework/Info.plist b/Binaries/harmony_uniffiFFI.xcframework/Info.plist
index 5d87f10..be2f9f8 100644
--- a/Binaries/harmony_uniffiFFI.xcframework/Info.plist
+++ b/Binaries/harmony_uniffiFFI.xcframework/Info.plist
@@ -8,38 +8,36 @@
 			<key>BinaryPath</key>
 			<string>harmony_uniffiFFI.framework/harmony_uniffiFFI</string>
 			<key>LibraryIdentifier</key>
-			<string>ios-arm64_x86_64-simulator</string>
+			<string>ios-arm64</string>
 			<key>LibraryPath</key>
 			<string>harmony_uniffiFFI.framework</string>
 			<key>SupportedArchitectures</key>
 			<array>
 				<string>arm64</string>
-				<string>x86_64</string>
 			</array>
 			<key>SupportedPlatform</key>
 			<string>ios</string>
-			<key>SupportedPlatformVariant</key>
-			<string>simulator</string>
 		</dict>
 		<dict>
 			<key>BinaryPath</key>
-			<string>harmony_uniffiFFI.framework/harmony_uniffiFFI</string>
+			<string>harmony_uniffiFFI.framework/Versions/A/harmony_uniffiFFI</string>
 			<key>LibraryIdentifier</key>
-			<string>ios-arm64</string>
+			<string>macos-arm64_x86_64</string>
 			<key>LibraryPath</key>
 			<string>harmony_uniffiFFI.framework</string>
 			<key>SupportedArchitectures</key>
 			<array>
 				<string>arm64</string>
+				<string>x86_64</string>
 			</array>
 			<key>SupportedPlatform</key>
-			<string>ios</string>
+			<string>macos</string>
 		</dict>
 		<dict>
 			<key>BinaryPath</key>
 			<string>harmony_uniffiFFI.framework/harmony_uniffiFFI</string>
 			<key>LibraryIdentifier</key>
-			<string>macos-arm64_x86_64</string>
+			<string>ios-arm64_x86_64-simulator</string>
 			<key>LibraryPath</key>
 			<string>harmony_uniffiFFI.framework</string>
 			<key>SupportedArchitectures</key>
@@ -48,7 +46,9 @@
 				<string>x86_64</string>
 			</array>
 			<key>SupportedPlatform</key>
-			<string>macos</string>
+			<string>ios</string>
+			<key>SupportedPlatformVariant</key>
+			<string>simulator</string>
 		</dict>
 	</array>
 	<key>CFBundlePackageType</key>
diff --git a/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Headers b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Headers
new file mode 120000
index 0000000..a177d2a
--- /dev/null
+++ b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Headers
@@ -0,0 +1 @@
+Versions/Current/Headers
\ No newline at end of file
diff --git a/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Modules b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Modules
new file mode 120000
index 0000000..5736f31
--- /dev/null
+++ b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Modules
@@ -0,0 +1 @@
+Versions/Current/Modules
\ No newline at end of file
diff --git a/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Resources b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Resources
new file mode 120000
index 0000000..953ee36
--- /dev/null
+++ b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Resources
@@ -0,0 +1 @@
+Versions/Current/Resources
\ No newline at end of file
diff --git a/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Headers/harmony_uniffiFFI.h b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Versions/A/Headers/harmony_uniffiFFI.h
similarity index 100%
rename from Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Headers/harmony_uniffiFFI.h
rename to Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Versions/A/Headers/harmony_uniffiFFI.h
diff --git a/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Modules/module.modulemap b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Versions/A/Modules/module.modulemap
similarity index 100%
rename from Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Modules/module.modulemap
rename to Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Versions/A/Modules/module.modulemap
diff --git a/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Info.plist b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Versions/A/Resources/Info.plist
similarity index 100%
rename from Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Info.plist
rename to Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Versions/A/Resources/Info.plist
diff --git a/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Versions/A/harmony_uniffiFFI b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Versions/A/harmony_uniffiFFI
new file mode 100644
index 0000000..9802dbb
Binary files /dev/null and b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Versions/A/harmony_uniffiFFI differ
diff --git a/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Versions/Current b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Versions/Current
new file mode 120000
index 0000000..8c7e5a6
--- /dev/null
+++ b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/Versions/Current
@@ -0,0 +1 @@
+A
\ No newline at end of file
diff --git a/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/harmony_uniffiFFI b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/harmony_uniffiFFI
deleted file mode 100644
index 9802dbb..0000000
Binary files a/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/harmony_uniffiFFI and /dev/null differ
diff --git a/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/harmony_uniffiFFI b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/harmony_uniffiFFI
new file mode 120000
index 0000000..1dd03d1
--- /dev/null
+++ b/Binaries/harmony_uniffiFFI.xcframework/macos-arm64_x86_64/harmony_uniffiFFI.framework/harmony_uniffiFFI
@@ -0,0 +1 @@
+Versions/Current/harmony_uniffiFFI
\ No newline at end of file
diff --git a/scripts/build_uniffi.sh b/scripts/build_uniffi.sh
index 86ad0d6..1b0ee36 100755
--- a/scripts/build_uniffi.sh
+++ b/scripts/build_uniffi.sh
@@ -124,19 +124,40 @@ make_framework() {
 
   local fw="$slice_dir/${FRAMEWORK_NAME}.framework"
   rm -rf "$fw"
-  mkdir -p "$fw/Headers" "$fw/Modules"
 
-  cp "$lib_path" "$fw/${FRAMEWORK_NAME}"
-  cp build/uniffi/Headers/* "$fw/Headers/"
-
-  cat > "$fw/Modules/module.modulemap" <<EOF
+  # macOS frameworks require the versioned ("deep") bundle layout: the binary,
+  # Headers, Modules and Resources/Info.plist live under Versions/A, with
+  # top-level symlinks into Versions/Current (added after the files are written,
+  # below). iOS and the simulator use the flat ("shallow") layout. Shipping the
+  # shallow layout for macOS makes an embedding app fail to build with "contains
+  # Info.plist, expected Versions/Current/Resources/Info.plist since the platform
+  # does not use shallow bundles".
+  local hdr_dir mod_dir plist_path bin_path
+  if [ "$platform" = "MacOSX" ]; then
+    mkdir -p "$fw/Versions/A/Headers" "$fw/Versions/A/Modules" "$fw/Versions/A/Resources"
+    hdr_dir="$fw/Versions/A/Headers"
+    mod_dir="$fw/Versions/A/Modules"
+    plist_path="$fw/Versions/A/Resources/Info.plist"
+    bin_path="$fw/Versions/A/${FRAMEWORK_NAME}"
+  else
+    mkdir -p "$fw/Headers" "$fw/Modules"
+    hdr_dir="$fw/Headers"
+    mod_dir="$fw/Modules"
+    plist_path="$fw/Info.plist"
+    bin_path="$fw/${FRAMEWORK_NAME}"
+  fi
+
+  cp "$lib_path" "$bin_path"
+  cp build/uniffi/Headers/* "$hdr_dir/"
+
+  cat > "$mod_dir/module.modulemap" <<EOF
 framework module ${FRAMEWORK_NAME} {
   umbrella header "${FRAMEWORK_NAME}.h"
   export *
 }
 EOF
 
-  cat > "$fw/Info.plist" <<EOF
+  cat > "$plist_path" <<EOF
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
@@ -162,6 +183,17 @@ EOF
 </dict>
 </plist>
 EOF
+
+  # macOS: create the version symlink (Current -> A) and the top-level symlinks
+  # into it that make this a valid versioned framework bundle. iOS/simulator
+  # slices are flat and need none of this.
+  if [ "$platform" = "MacOSX" ]; then
+    ln -s A                                    "$fw/Versions/Current"
+    ln -s "Versions/Current/${FRAMEWORK_NAME}" "$fw/${FRAMEWORK_NAME}"
+    ln -s Versions/Current/Headers             "$fw/Headers"
+    ln -s Versions/Current/Modules             "$fw/Modules"
+    ln -s Versions/Current/Resources           "$fw/Resources"
+  fi
 }
 
 make_framework "$IOS_LIB"     build/frameworks/ios     MinimumOSVersion       "$IOS_DEPLOYMENT_TARGET"   iPhoneOS