diff --git a/ci/action.sh b/ci/action.sh
new file mode 100755
index 00000000..30bea998
--- /dev/null
+++ b/ci/action.sh
@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+
+# Build
+if [ $SKIP ]; then
+  exit 0;
+fi
+
+if [ $OS_NAME = "windows" ]; then
+  export PATH="$PATH:/c/ProgramData/Chocolatey/bin/:/c/Program Files/Git/usr/bin/"
+fi
+
+export CI_SCRIPTS_PATH=${CI_SCRIPTS_PATH:-$(dirname "$0")}
+
+source $CI_SCRIPTS_PATH/common.sh
+
+# Download SDK
+if [ $OS_NAME = 'osx' ]; then
+  if [[ ! -d $HOME/sdk/MacOSX10.9.sdk ]]; then
+    git clone https://github.com/phracker/MacOSX-SDKs $HOME/sdk
+  fi
+fi
+
+bash $CI_SCRIPTS_PATH/install.sh
+
+set -x
+
+if [ $SCRIPT ]; then
+  bash $SCRIPT
+else
+  bash $CI_SCRIPTS_PATH/script.sh
+fi
+
+if [ $? -eq 0 ]; then
+  source $CI_SCRIPTS_PATH/after_success.sh
+else
+  source $CI_SCRIPTS_PATH/after_failure.sh
+fi
diff --git a/ci/action.yml b/ci/action.yml
index dad36aed..38f44203 100644
--- a/ci/action.yml
+++ b/ci/action.yml
@@ -1,36 +1,10 @@
 name: 'Package build'
+
 description: 'Build a package'
+
 runs:
   using: "composite"
   steps:
-    - name: build
-      run: |
-        if [ $SKIP ]; then
-          exit 0;
-        fi
-        if [ $OS_NAME = "windows" ]; then
-          export PATH="$PATH:/c/ProgramData/Chocolatey/bin/"
-          export PATH="$PATH:/c/Program Files/Git/usr/bin/"
-        fi
-        # Used in the scripts to locate other scripts.
-        export CI_SCRIPTS_PATH="$GITHUB_ACTION_PATH"
 
-        source $GITHUB_ACTION_PATH/common.sh
-        if [ $OS_NAME = 'osx' ]; then
-            if [[ ! -d $HOME/sdk/MacOSX10.9.sdk ]]; then
-                git clone https://github.com/phracker/MacOSX-SDKs $HOME/sdk
-            fi
-        fi
-        bash $GITHUB_ACTION_PATH/install.sh
-        set -x
-        if [ $SCRIPT ]; then
-          bash $SCRIPT
-        else
-          bash $GITHUB_ACTION_PATH/script.sh
-        fi
-        if [ $? -eq 0 ]; then
-          source $GITHUB_ACTION_PATH/after_success.sh
-        else
-          source $GITHUB_ACTION_PATH/after_failure.sh
-        fi
-      shell: bash
+    - shell: bash
+      run: $GITHUB_ACTION_PATH/action.sh