diff --git a/Makefile.js b/Makefile.js
index f49b06fd75d..8e03784c990 100644
--- a/Makefile.js
+++ b/Makefile.js
@@ -63,8 +63,6 @@ const NODE = "node ", // intentional extra space
     ESLINT = `${NODE} bin/eslint.js --report-unused-disable-directives `,
 
     // Files
-    MAKEFILE = "./Makefile.js",
-    JS_FILES = "\"lib/**/*.js\" \"conf/**/*.js\" \"bin/**/*.js\" \"tools/**/*.js\"",
     JSON_FILES = find("conf/").filter(fileType("json")),
     MARKDOWN_FILES_ARRAY = find("docs/").concat(ls(".")).filter(fileType("md")),
     TEST_FILES = getTestFilePatterns(),
@@ -502,14 +500,8 @@ target.lint = function() {
     let errors = 0,
         lastReturn;
 
-    echo("Validating Makefile.js");
-    lastReturn = exec(`${ESLINT} ${MAKEFILE}`);
-    if (lastReturn.code !== 0) {
-        errors++;
-    }
-
-    echo("Validating .eslintrc.js");
-    lastReturn = exec(`${ESLINT} .eslintrc.js`);
+    echo("Validating JavaScript files");
+    lastReturn = exec(`${ESLINT} .`);
     if (lastReturn.code !== 0) {
         errors++;
     }
@@ -523,18 +515,6 @@ target.lint = function() {
         errors++;
     }
 
-    echo("Validating JavaScript files");
-    lastReturn = exec(`${ESLINT} ${JS_FILES}`);
-    if (lastReturn.code !== 0) {
-        errors++;
-    }
-
-    echo("Validating JavaScript test files");
-    lastReturn = exec(`${ESLINT} "tests/**/*.js"`);
-    if (lastReturn.code !== 0) {
-        errors++;
-    }
-
     if (errors) {
         exit(1);
     }
diff --git a/karma.conf.js b/karma.conf.js
index 595ba0c591d..edfa612f7c7 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -9,8 +9,10 @@ module.exports = function(config) {
         basePath: "",
 
 
-        // frameworks to use
-        // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
+        /*
+         * frameworks to use
+         * available frameworks: https://npmjs.org/browse/keyword/karma-adapter
+         */
         frameworks: ["mocha"],
 
 
@@ -26,8 +28,10 @@ module.exports = function(config) {
         ],
 
 
-        // preprocess matching files before serving them to the browser
-        // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
+        /*
+         * preprocess matching files before serving them to the browser
+         * available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
+         */
         preprocessors: {
             "tests/lib/linter.js": ["webpack"]
         },
@@ -40,9 +44,11 @@ module.exports = function(config) {
         },
 
 
-        // test results reporter to use
-        // possible values: "dots", "progress"
-        // available reporters: https://npmjs.org/browse/keyword/karma-reporter
+        /*
+         * test results reporter to use
+         * possible values: "dots", "progress"
+         * available reporters: https://npmjs.org/browse/keyword/karma-reporter
+         */
         reporters: ["mocha"],
 
         mochaReporter: {
@@ -57,8 +63,10 @@ module.exports = function(config) {
         colors: true,
 
 
-        // level of logging
-        // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
+        /*
+         * level of logging
+         * possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
+         */
         logLevel: config.LOG_INFO,
 
 
@@ -66,22 +74,28 @@ module.exports = function(config) {
         autoWatch: false,
 
 
-        // start these browsers
-        // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
+        /*
+         * start these browsers
+         * available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
+         */
         browsers: ["HeadlessChrome"],
         customLaunchers: {
-          HeadlessChrome: {
-            base: 'ChromeHeadless',
-            flags: [ '--no-sandbox', ],
-             },
-            },
-
-        // Continuous Integration mode
-        // if true, Karma captures browsers, runs the tests and exits
+            HeadlessChrome: {
+                base: "ChromeHeadless",
+                flags: ["--no-sandbox"]
+            }
+        },
+
+        /*
+         * Continuous Integration mode
+         * if true, Karma captures browsers, runs the tests and exits
+         */
         singleRun: true,
 
-        // Concurrency level
-        // how many browser should be started simultaneous
+        /*
+         * Concurrency level
+         * how many browser should be started simultaneous
+         */
         concurrency: Infinity
     });
 };
diff --git a/packages/eslint-config-eslint/index.js b/packages/eslint-config-eslint/index.js
index cd59d4eb230..1304f34a870 100644
--- a/packages/eslint-config-eslint/index.js
+++ b/packages/eslint-config-eslint/index.js
@@ -1,35 +1,9 @@
 /**
- * @fileoverview Converts YAML file into JSON.
- * @author Nicholas C. Zakas
+ * @fileoverview Index file to allow YAML file to be loaded
+ * @author Teddy Katz
  */
 "use strict";
 
-//------------------------------------------------------------------------------
-// Requirements
-//------------------------------------------------------------------------------
-
-var fs = require("fs"),
-    path = require("path"),
-    yaml = require("js-yaml");
-
-//------------------------------------------------------------------------------
-// Bootstrapping
-//------------------------------------------------------------------------------
-
-var filePath = path.resolve(__dirname, "./default.yml"),
-    config;
-
-try {
-    config = yaml.safeLoad(fs.readFileSync(filePath, "utf8")) || {};
-} catch (e) {
-    console.error(`Error reading YAML file: ${filePath}`);
-    e.message = `Cannot read config file: ${filePath}\nError: ${e.message}`;
-    throw e;
-}
-
-
-//------------------------------------------------------------------------------
-// Public Interface
-//------------------------------------------------------------------------------
-
-module.exports = config;
+module.exports = {
+    extends: ["./default.yml"]
+};
diff --git a/packages/eslint-config-eslint/package.json b/packages/eslint-config-eslint/package.json
index dfa84638a44..b8da18bf61d 100644
--- a/packages/eslint-config-eslint/package.json
+++ b/packages/eslint-config-eslint/package.json
@@ -19,9 +19,6 @@
   },
   "homepage": "https://eslint.org",
   "bugs": "https://github.com/eslint/eslint/issues/",
-  "dependencies": {
-    "js-yaml": "^3.12.1"
-  },
   "peerDependencies": {
     "eslint-plugin-node": "^6.0.1 || ^7.0.1 || ^8.0.0"
   },
diff --git a/webpack.config.js b/webpack.config.js
index 209c75a9e4b..ab0346d0c67 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -1,3 +1,5 @@
+"use strict";
+
 module.exports = {
     mode: "none",
     entry: ["@babel/polyfill", "./lib/linter.js"],