diff --git a/charts/openproject/bin/install-dev b/charts/openproject/bin/install-dev
new file mode 100644
index 0000000..b38d542
--- /dev/null
+++ b/charts/openproject/bin/install-dev
@@ -0,0 +1,6 @@
+# !/bin/bash
+
+# Install OpenProject in development mode, that is without https and allowing writes
+# to the container file system.
+
+helm upgrade --create-namespace --namespace openproject --install openproject --set develop=true "$@" .