diff --git a/index.js b/index.js
index 1722991..767e845 100644
--- a/index.js
+++ b/index.js
@@ -1,5 +1,5 @@
 const { exec } = require('node:child_process')
-
-exec('apk add bash git', (err, output) => {
+var additional = process.env.additional;
+exec('apk add bash git ' + additional, (err, output) => {
     console.log(output)
 })
\ No newline at end of file