diff --git a/build.sh b/build.sh
index c825246..f16b580 100755
--- a/build.sh
+++ b/build.sh
@@ -4,8 +4,10 @@ basedir=$(cd $(dirname "$0"); pwd)
 
 source $basedir/setup.sh
 
+platforms="linux,windows,web,android,osx,ios,msvc"
+
 if [ -z "$1" -o -z "$2" ]; then
-  echo "Usage: $0 <godot branch> <base distro>"
+  echo "Usage: $0 <godot branch> <base distro> [<platforms>]"
   echo
   echo "Example: $0 3.x f35"
   echo
@@ -15,6 +17,10 @@ if [ -z "$1" -o -z "$2" ]; then
   echo "base distro:"
   echo "        Informational, tracks the base Linux distro these containers are based on."
   echo
+  echo "(Optional) platforms:"
+  echo "        Comma-separated list of platforms."
+  echo "        Defaults to: $platforms"
+  echo
   echo "The resulting image version will be <godot branch>-<base distro>."
   exit 1
 fi
@@ -23,7 +29,14 @@ godot_branch=$1
 base_distro=$2
 img_version=$godot_branch-$base_distro
 files_root="$basedir/files"
-build_msvc=0
+
+if [ ! -z "$3" ]; then
+  case "$3" in
+    free) platforms="linux,windows,web,android";;
+    nonfree) platforms="osx,ios,msvc";;
+    *) platforms="$3";;
+  esac
+fi
 
 if [ ! -z "$PS1" ]; then
   # Confirm settings
@@ -55,36 +68,36 @@ podman_build() {
 
 podman_build export
 
-podman_build linux
-podman_build windows
-
-podman_build web
-podman_build android
-
-XCODE_SDK=14.1
-OSX_SDK=13.0
-IOS_SDK=16.1
-if [ ! -e "${files_root}"/MacOSX${OSX_SDK}.sdk.tar.xz ] || [ ! -e "${files_root}"/iPhoneOS${IOS_SDK}.sdk.tar.xz ] || [ ! -e "${files_root}"/iPhoneSimulator${IOS_SDK}.sdk.tar.xz ]; then
-  if [ ! -e "${files_root}"/Xcode_${XCODE_SDK}.xip ]; then
-    echo "files/Xcode_${XCODE_SDK}.xip is required. It can be downloaded from https://developer.apple.com/download/more/ with a valid apple ID."
-    exit 1
+for platform in linux windows web android; do
+  if grep -q "$platform" <<< "$platforms"; then podman_build "$platform"; fi
+done
+
+if grep -q osx <<< "$platforms" || grep -q ios <<< "$platforms"; then
+  XCODE_SDK=14.1
+  OSX_SDK=13.0
+  IOS_SDK=16.1
+  if [ ! -e "${files_root}"/MacOSX${OSX_SDK}.sdk.tar.xz ] || [ ! -e "${files_root}"/iPhoneOS${IOS_SDK}.sdk.tar.xz ] || [ ! -e "${files_root}"/iPhoneSimulator${IOS_SDK}.sdk.tar.xz ]; then
+    if [ ! -e "${files_root}"/Xcode_${XCODE_SDK}.xip ]; then
+      echo "files/Xcode_${XCODE_SDK}.xip is required. It can be downloaded from https://developer.apple.com/download/more/ with a valid apple ID."
+      exit 1
+    fi
+
+    echo "Building OSX and iOS SDK packages. This will take a while"
+    podman_build xcode
+    $podman run -it --rm \
+      -v "${files_root}":/root/files:z \
+      -e XCODE_SDKV="${XCODE_SDK}" \
+      -e OSX_SDKV="${OSX_SDK}" \
+      -e IOS_SDKV="${IOS_SDK}" \
+      godot-xcode:${img_version} \
+      2>&1 | tee logs/xcode_packer.log
   fi
 
-  echo "Building OSX and iOS SDK packages. This will take a while"
-  podman_build xcode
-  "$podman" run -it --rm \
-    -v "${files_root}":/root/files:z \
-    -e XCODE_SDKV="${XCODE_SDK}" \
-    -e OSX_SDKV="${OSX_SDK}" \
-    -e IOS_SDKV="${IOS_SDK}" \
-    godot-xcode:${img_version} \
-    2>&1 | tee logs/xcode_packer.log
+  podman_build osx
+  podman_build ios
 fi
 
-podman_build osx
-podman_build ios
-
-if [ "${build_msvc}" != "0" ]; then
+if grep -q msvc <<< "$platforms"; then
   if [ ! -e "${files_root}"/msvc2017.tar ]; then
     echo
     echo "files/msvc2017.tar is missing. This file can be created on a Windows 7 or 10 machine by downloading the 'Visual Studio Tools' installer."