diff --git a/README.md b/README.md
index c70a8d8..1562c4a 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,12 @@ To use the action, add the following step to your workflow file (for example `.g
 
 The follow options can be provided to this GitHub Action.
 
+### `artifact-path`
+
+Path to the collection's build artifact (tarball).
+
+**(REQUIRED)**
+
 ### `python-version`
 
 The Python version to use.
@@ -49,11 +55,10 @@ This is assumed to exist in https://github.com/ansible/ansible.
 
 Path to a Galaxy requirements file. If present, these collections will be installed.
 
-### `artifact-path`
+### `importer-config-path`
 
-Path to the collection's build artifact (tarball).
-
-**(REQUIRED)**
+Path to a Galaxy importer configuration file.
+See https://github.com/ansible/galaxy-importer#configuration for more information.
 
 ## Bundled shared workflow
 
diff --git a/action.yml b/action.yml
index 8f0975a..dc87efa 100644
--- a/action.yml
+++ b/action.yml
@@ -8,6 +8,10 @@ description: >-
   This action tries to import a built Ansible collection artifact with the Ansible Galaxy importer.
 author: "Felix Fontein (@felixfontein)"
 inputs:
+  artifact-path:
+    description: >-
+      Path to the collection's build artifact (tarball).
+    required: true
   python-version:
     description: |-
       The Python version to use.
@@ -22,10 +26,10 @@ inputs:
   collection-requirements-path:
     description: >-
       Path to a Galaxy requirements file. If present, these collections will be installed.
-  artifact-path:
+  importer-config-path:
     description: >-
-      Path to the collection's build artifact (tarball).
-    required: true
+      Path to a Galaxy importer configuration file.
+      See https://github.com/ansible/galaxy-importer#configuration for more information.
 runs:
   using: composite
   steps:
@@ -53,12 +57,37 @@ runs:
       run: |
         ansible-galaxy collection install --pre --requirements-file "${COLLECTION_REQUIREMENTS_PATH}"
 
+    - name: Preparations
+      id: preparations
+      env:
+        ARTIFACT_PATH: ${{ inputs.artifact-path }}
+        IMPORTER_CONFIG_PATH: ${{ inputs.importer-config-path }}
+      shell: python
+      run: |
+        # Preparations
+
+        import os
+        import shlex
+
+        def set_output(name, value):
+            with open(os.environ['GITHUB_OUTPUT'], 'a', encoding='utf-8') as f:
+                f.write(f'{name}={value}{os.linesep}')
+
+        artifact_path = os.environ['ARTIFACT_PATH']
+        importer_config_path = os.environ['IMPORTER_CONFIG_PATH']
+
+        command = ['python', '-m', 'galaxy_importer.main', artifact_path]
+        if importer_config_path:
+            command.insert(0, f'GALAXY_IMPORTER_CONFIG={importer_config_path}')
+
+        set_output('command', shlex.join(command))
+
     - name: Run Galaxy importer
       shell: bash
       env:
         ARTIFACT_PATH: ${{ inputs.artifact-path }}
       run: |
-        python -m galaxy_importer.main "${ARTIFACT_PATH}" | tee import.log
+        ${{ steps.preparations.outputs.command }} | tee import.log
 
     - name: Analyze result
       shell: python