diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..620169d
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+PATH_add .
diff --git a/.gitignore b/.gitignore
index b2be92b..726d2d6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 result
+.direnv
diff --git a/switch.sh b/switch
similarity index 100%
rename from switch.sh
rename to switch