diff --git a/ember-scoped-css/.eslintrc.cjs b/ember-scoped-css/.eslintrc.cjs
index 0212678f..f3638ad2 100644
--- a/ember-scoped-css/.eslintrc.cjs
+++ b/ember-scoped-css/.eslintrc.cjs
@@ -1,6 +1,6 @@
-"use strict";
+'use strict';
 
-const { configs } = require("@nullvoxpopuli/eslint-configs");
+const { configs } = require('@nullvoxpopuli/eslint-configs');
 
 const nodeESM = configs.node();
 
@@ -10,12 +10,12 @@ module.exports = {
     ...nodeESM.overrides,
 
     {
-      files: ["./test/**/*.js"],
+      files: ['./test/**/*.js'],
       env: {
         mocha: true,
       },
       rules: {
-        "node/no-unpublished-import": 0,
+        'node/no-unpublished-import': 0,
       },
     },
   ],
diff --git a/ember-scoped-css/.prettierrc.cjs b/ember-scoped-css/.prettierrc.cjs
index 3401f9a7..324b444b 100644
--- a/ember-scoped-css/.prettierrc.cjs
+++ b/ember-scoped-css/.prettierrc.cjs
@@ -1,9 +1,9 @@
-"use strict";
+'use strict';
 
 module.exports = {
   overrides: [
     {
-      files: "*.{js,ts}",
+      files: '*.{js,ts,cjs,mjs,mts,cts,gts.gjs}',
       options: {
         singleQuote: true,
       },
diff --git a/ember-scoped-css/src/ember-addon-main.cjs b/ember-scoped-css/src/ember-addon-main.cjs
index f2893eda..4f898f7e 100644
--- a/ember-scoped-css/src/ember-addon-main.cjs
+++ b/ember-scoped-css/src/ember-addon-main.cjs
@@ -1,11 +1,11 @@
-"use strict";
+'use strict';
 
 const {
   default: ScopedCssPreprocessor,
-} = require("../dist/lib/scoped-css-preprocessor.cjs");
+} = require('../dist/lib/scoped-css-preprocessor.cjs');
 
 module.exports = {
-  name: "ember-scoped-css",
+  name: 'ember-scoped-css',
 
   init() {
     this._super.init && this._super.init.apply(this, arguments);
@@ -27,7 +27,7 @@ module.exports = {
       if (htmlbarsPlugin) {
         let htmlbarsPluginIndex = plugins.indexOf(htmlbarsPlugin);
 
-        let customPlugin = [require.resolve("../dist/scoped-babel-plugin.cjs")];
+        let customPlugin = [require.resolve('../dist/scoped-babel-plugin.cjs')];
 
         plugins.splice(htmlbarsPluginIndex, 0, customPlugin);
       }
@@ -36,16 +36,16 @@ module.exports = {
 
   setupPreprocessorRegistry(type, registry) {
     // Skip if we're setting up this addon's own registry
-    if (type !== "parent") {
+    if (type !== 'parent') {
       return;
     }
 
     // we need to run our css preprocessor first, so we removed all other from the registry and run them as part of our preprocessor
     // we did not find other way how to do it more elegantly
-    let preprocessors = registry.load("css");
+    let preprocessors = registry.load('css');
 
-    preprocessors.forEach((p) => registry.remove("css", p));
+    preprocessors.forEach((p) => registry.remove('css', p));
     this.outputStylePreprocessor.preprocessors = preprocessors;
-    registry.add("css", this.outputStylePreprocessor);
+    registry.add('css', this.outputStylePreprocessor);
   },
 };
diff --git a/test-apps/classic-app/.prettierrc.js b/test-apps/classic-app/.prettierrc.js
index e5f7b6d1..324b444b 100644
--- a/test-apps/classic-app/.prettierrc.js
+++ b/test-apps/classic-app/.prettierrc.js
@@ -3,7 +3,7 @@
 module.exports = {
   overrides: [
     {
-      files: '*.{js,ts}',
+      files: '*.{js,ts,cjs,mjs,mts,cts,gts.gjs}',
       options: {
         singleQuote: true,
       },
diff --git a/test-apps/embroider-app/.prettierrc.js b/test-apps/embroider-app/.prettierrc.js
index e5f7b6d1..324b444b 100644
--- a/test-apps/embroider-app/.prettierrc.js
+++ b/test-apps/embroider-app/.prettierrc.js
@@ -3,7 +3,7 @@
 module.exports = {
   overrides: [
     {
-      files: '*.{js,ts}',
+      files: '*.{js,ts,cjs,mjs,mts,cts,gts.gjs}',
       options: {
         singleQuote: true,
       },
diff --git a/test-apps/v2-addon/.eslintrc.cjs b/test-apps/v2-addon/.eslintrc.cjs
index 270745e0..35b0e21d 100644
--- a/test-apps/v2-addon/.eslintrc.cjs
+++ b/test-apps/v2-addon/.eslintrc.cjs
@@ -1,6 +1,6 @@
-"use strict";
+'use strict';
 
-const { configs } = require("@nullvoxpopuli/eslint-configs");
+const { configs } = require('@nullvoxpopuli/eslint-configs');
 
 const ember = configs.ember();
 
diff --git a/test-apps/v2-addon/.prettierrc.cjs b/test-apps/v2-addon/.prettierrc.cjs
index 3401f9a7..324b444b 100644
--- a/test-apps/v2-addon/.prettierrc.cjs
+++ b/test-apps/v2-addon/.prettierrc.cjs
@@ -1,9 +1,9 @@
-"use strict";
+'use strict';
 
 module.exports = {
   overrides: [
     {
-      files: "*.{js,ts}",
+      files: '*.{js,ts,cjs,mjs,mts,cts,gts.gjs}',
       options: {
         singleQuote: true,
       },
diff --git a/test-apps/v2-addon/.template-lintrc.cjs b/test-apps/v2-addon/.template-lintrc.cjs
index d1311e11..f35f61c7 100644
--- a/test-apps/v2-addon/.template-lintrc.cjs
+++ b/test-apps/v2-addon/.template-lintrc.cjs
@@ -1,5 +1,5 @@
-"use strict";
+'use strict';
 
 module.exports = {
-  extends: "recommended",
+  extends: 'recommended',
 };
diff --git a/test-apps/v2-addon/addon-main.cjs b/test-apps/v2-addon/addon-main.cjs
index 07684a92..d36b0c86 100644
--- a/test-apps/v2-addon/addon-main.cjs
+++ b/test-apps/v2-addon/addon-main.cjs
@@ -1,5 +1,5 @@
-"use strict";
+'use strict';
 
-const { addonV1Shim } = require("@embroider/addon-shim");
+const { addonV1Shim } = require('@embroider/addon-shim');
 
 module.exports = addonV1Shim(__dirname);
diff --git a/test-apps/v2-addon/rollup.config.mjs b/test-apps/v2-addon/rollup.config.mjs
index f64fc751..a10fc701 100644
--- a/test-apps/v2-addon/rollup.config.mjs
+++ b/test-apps/v2-addon/rollup.config.mjs
@@ -1,12 +1,12 @@
-import { babel } from "@rollup/plugin-babel";
-import copy from "rollup-plugin-copy";
-import { Addon } from "@embroider/addon-dev/rollup";
-import { glimmerTemplateTag } from "rollup-plugin-glimmer-template-tag";
-import { scopedCssUnplugin } from "ember-scoped-css";
+import { babel } from '@rollup/plugin-babel';
+import copy from 'rollup-plugin-copy';
+import { Addon } from '@embroider/addon-dev/rollup';
+import { glimmerTemplateTag } from 'rollup-plugin-glimmer-template-tag';
+import { scopedCssUnplugin } from 'ember-scoped-css';
 
 const addon = new Addon({
-  srcDir: "src",
-  destDir: "dist",
+  srcDir: 'src',
+  destDir: 'dist',
 });
 
 export default {
@@ -17,12 +17,12 @@ export default {
   plugins: [
     // These are the modules that users should be able to import from your
     // addon. Anything not listed here may get optimized away.
-    addon.publicEntrypoints(["components/**/*.js", "index.js"]),
+    addon.publicEntrypoints(['components/**/*.js', 'index.js']),
 
     // These are the modules that should get reexported into the traditional
     // "app" tree. Things in here should also be in publicEntrypoints above, but
     // not everything in publicEntrypoints necessarily needs to go here.
-    addon.appReexports(["components/**/*.js"]),
+    addon.appReexports(['components/**/*.js']),
 
     // Follow the V2 Addon rules about dependencies. Your code can import from
     // `dependencies` and `peerDependencies` as well as standard Ember-provided
@@ -37,8 +37,8 @@ export default {
     // By default, this will load the actual babel config from the file
     // babel.config.json.
     babel({
-      babelHelpers: "bundled",
-      extensions: [".js", ".ts", ".gjs", ".gts"],
+      babelHelpers: 'bundled',
+      extensions: ['.js', '.ts', '.gjs', '.gts'],
     }),
 
     // Ensure that standalone .hbs files are properly integrated as Javascript.
@@ -57,8 +57,8 @@ export default {
     // Copy Readme and License into published package
     copy({
       targets: [
-        { src: "../README.md", dest: "." },
-        { src: "../LICENSE.md", dest: "." },
+        { src: '../README.md', dest: '.' },
+        { src: '../LICENSE.md', dest: '.' },
       ],
     }),
   ],