diff --git a/.env b/.env
new file mode 100644
index 0000000..6b30cee
--- /dev/null
+++ b/.env
@@ -0,0 +1,3 @@
+REACT_APP_VERSION=$npm_package_version
+EXTEND_ESLINT=true
+PUBLIC_URL=https://cdn.jsdelivr.net/gh/thuhole/webhole@gh-pages
diff --git a/.gitignore b/.gitignore
index 4c54181..f7222bc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,3 @@
 node_modules/
 /build/
 build.*
-.env