diff --git a/.eslintrc.json b/.eslintrc.json
new file mode 100644
index 0000000..7387197
--- /dev/null
+++ b/.eslintrc.json
@@ -0,0 +1,35 @@
+{
+  "env": {
+    "browser": true,
+    "es2021": true,
+      "node": true
+  },
+  "extends": "eslint:recommended",
+  "overrides": [
+  ],
+  "parserOptions": {
+    "ecmaVersion": "latest",
+    "sourceType": "module"
+  },
+  "ignorePatterns": [
+    "src/glkOte/*.js"
+  ],
+  "rules": {
+    "indent": [
+      "error",
+      2
+    ],
+    "linebreak-style": [
+      "error",
+      "unix"
+    ],
+    "quotes": [
+      "error",
+      "single"
+    ],
+    "semi": [
+      "error",
+      "never"
+    ]
+  }
+}