diff --git a/.eslintrc.json b/.eslintrc.json
new file mode 100644
index 0000000..e184e85
--- /dev/null
+++ b/.eslintrc.json
@@ -0,0 +1,8 @@
+{
+  "env": {
+    "commonjs": true,
+    "es2017": true,
+    "node": true
+  },
+  "extends": "eslint:recommended"
+}
diff --git a/package-lock.json b/package-lock.json
index cceea7f..c217118 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -124,6 +124,24 @@
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       }
     },
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+      "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
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+    },
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+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.3.1.tgz",
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+      "dev": true
+    },
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+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.2.0.tgz",
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+      "dev": true
+    },
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@@ -136,6 +154,12 @@
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       }
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+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-4.1.1.tgz",
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+    },
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@@ -206,6 +230,12 @@
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       "dev": true
     },
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+      "resolved": "https://registry.npmjs.org/astral-regex/-/astral-regex-1.0.0.tgz",
+      "integrity": "sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg==",
+      "dev": true
+    },
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@@ -316,6 +346,12 @@
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+      "resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
+      "integrity": "sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ==",
+      "dev": true
+    },
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       "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
@@ -514,6 +550,12 @@
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       "dev": true
     },
+    "deep-is": {
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.3.tgz",
+      "integrity": "sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=",
+      "dev": true
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       "dev": true
     },
+    "doctrine": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-3.0.0.tgz",
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+      "dev": true,
+      "requires": {
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     "ecc-jsbn": {
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       "dev": true
     },
+    "enquirer": {
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+      "resolved": "https://registry.npmjs.org/enquirer/-/enquirer-2.3.6.tgz",
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+      "dev": true,
+      "requires": {
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+        "chalk": "^4.0.0",
+        "cross-spawn": "^7.0.2",
+        "debug": "^4.0.1",
+        "doctrine": "^3.0.0",
+        "enquirer": "^2.3.5",
+        "eslint-scope": "^5.1.0",
+        "eslint-utils": "^2.0.0",
+        "eslint-visitor-keys": "^1.2.0",
+        "espree": "^7.1.0",
+        "esquery": "^1.2.0",
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+        "globals": "^12.1.0",
+        "ignore": "^4.0.6",
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+        "imurmurhash": "^0.1.4",
+        "is-glob": "^4.0.0",
+        "js-yaml": "^3.13.1",
+        "json-stable-stringify-without-jsonify": "^1.0.1",
+        "levn": "^0.4.1",
+        "lodash": "^4.17.14",
+        "minimatch": "^3.0.4",
+        "natural-compare": "^1.4.0",
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+        "progress": "^2.0.0",
+        "regexpp": "^3.1.0",
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@@ -1443,6 +1836,15 @@
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@@ -1530,6 +1932,18 @@
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@@ -1612,6 +2026,12 @@
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@@ -1856,6 +2287,12 @@
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@@ -1865,6 +2302,46 @@
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@@ -3014,6 +3491,12 @@
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@@ -3073,6 +3556,21 @@
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+      "dev": true,
+      "requires": {
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+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.8.1.tgz",
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@@ -3182,6 +3686,12 @@
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@@ -3240,6 +3750,15 @@
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diff --git a/package.json b/package.json
index e3bf88f..d9485c4 100644
--- a/package.json
+++ b/package.json
@@ -18,12 +18,14 @@
     "style.css"
   ],
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+    "lint": "eslint .",
     "test": "tap"
   },
   "dependencies": {
     "handlebars": "4.7.6"
   },
   "devDependencies": {
+    "eslint": "7.4.0",
     "tap": "14.10.7"
   }
 }