1 files changed, 11 insertions, 0 deletions
diff --git a/README.md b/README.md
index d58ebf8..ea4ecbd 100644
--- a/README.md
+++ b/README.md
@@ -56,6 +56,17 @@ The following table shows which languages and package managers are supported.
 | Python     | [pip](https://pip.pypa.io/en/stable/)                             |
 | Ruby       | [gem](https://rubygems.org/)                                      |
 
+Inject `SETUP_CMD` to the docker command to override the given package managers
+and run your custom command to setup your environment with a custom package manager.
+
+    ```sh
+    docker run \
+      --volume "$PWD":/code \
+      --env "SETUP_CMD=./my-custom-install-script.sh" \
+      --rm \
+      registry.gitlab.com/gitlab-org/security-products/license-management:latest analyze /code
+    ```
+
 
 ## Versioning and release process