diff --git a/.codex/environments/environment.toml b/.codex/environments/environment.toml
new file mode 100644
index 000000000..dfd95287f
--- /dev/null
+++ b/.codex/environments/environment.toml
@@ -0,0 +1,15 @@
+# THIS IS AUTOGENERATED. DO NOT EDIT MANUALLY
+version = 1
+name = "FOSSBilling"
+
+[setup]
+script = '''
+cd "$CODEX_WORKTREE_PATH"
+composer install
+npm install
+npm run build'''
+
+[[actions]]
+name = "Build"
+icon = "tool"
+command = "npm run build"
diff --git a/cspell.json b/cspell.json
index 4eac53bba..e8e38a80d 100644
--- a/cspell.json
+++ b/cspell.json
@@ -56,7 +56,8 @@
         "myhost",
         "inversed",
         "Autoresponder",
-        "initialises"
+        "initialises",
+        "WORKTREE"
     ],
 
     "ignoreWords": [