diff --git a/files-override/.eslintrc.cjs b/files-override/.eslintrc.cjs
new file mode 100644
index 0000000..fb0ac4d
--- /dev/null
+++ b/files-override/.eslintrc.cjs
@@ -0,0 +1,98 @@
+'use strict';
+
+module.exports = {
+  overrides: [
+    {
+      files: ['*.{js,ts,mjs,cjs}'],
+      plugins: ['ember'],
+      parser: '@typescript-eslint/parser',
+      extends: ['eslint:recommended', 'plugin:ember/recommended'],
+    },
+    {
+      files: ['*.gts'],
+      parser: 'ember-eslint-parser',
+      plugins: ['ember'],
+      extends: [
+        'eslint:recommended',
+        'plugin:ember/recommended',
+        'plugin:ember/recommended-gts',
+      ],
+    },
+    {
+      files: ['*.gjs'],
+      parser: 'ember-eslint-parser',
+      plugins: ['ember'],
+      extends: [
+        'eslint:recommended',
+        'plugin:ember/recommended',
+        'plugin:ember/recommended-gjs',
+      ],
+    },
+    // test files
+    {
+      files: ['tests/**/*-test.{js,ts}'],
+      plugins: ['ember'],
+      parser: '@typescript-eslint/parser',
+      extends: ['eslint:recommended', 'plugin:qunit/recommended'],
+    },
+    {
+      files: ['tests/**/*-test.{gjs,gts}'],
+      parser: 'ember-eslint-parser',
+      plugins: ['ember'],
+      extends: [
+        'eslint:recommended',
+        'plugin:ember/recommended',
+        'plugin:ember/recommended-gts',
+      ],
+    },
+    {
+      files: ['*.gts', '*.ts'],
+      plugins: ['no-relative-import-paths'],
+      settings: {
+        node: {
+          tryExtensions: ['.gts', '.ts', '.js', '.module.css', '.css'],
+        },
+      },
+      rules: {
+        'no-relative-import-paths/no-relative-import-paths': [
+          'warn',
+          { allowSameFolder: true, rootDir: 'app', prefix: 'discord-clone' },
+        ],
+        'n/file-extension-in-import': [
+          'error',
+          'always',
+          {
+            '.css': 'always',
+            '.module.css': 'always',
+            '.gts': 'never',
+            '.ts': 'never',
+            '.js': 'never',
+          },
+        ],
+      },
+    },
+
+    // node files
+    {
+      files: [
+        './.eslintrc.{js,cjs}',
+        './.prettierrc.{js,cjs}',
+        './.stylelintrc.{js,cjs}',
+        './.template-lintrc.{js,cjs}',
+        './ember-cli-build.js',
+        './testem.js',
+        './blueprints/*/index.js',
+        './config/**/*.js',
+        './lib/*/index.js',
+        './server/**/*.js',
+        '*.mjs',
+        '*.cjs',
+      ],
+      env: {
+        browser: false,
+        node: true,
+      },
+      extends: ['plugin:n/recommended'],
+    },
+  ],
+};
diff --git a/files-override/.prettierrc.cjs b/files-override/.prettierrc.cjs
new file mode 100644
index 0000000..6197eb1
--- /dev/null
+++ b/files-override/.prettierrc.cjs
@@ -0,0 +1,34 @@
+'use strict';
+
+module.exports = {
+  plugins: ['prettier-plugin-ember-template-tag'],
+  overrides: [
+    {
+      files: ['*.js', '*.ts', '*.cjs', '.mjs', '.cts', '.mts', '.cts'],
+      options: {
+        singleQuote: true,
+        trailingComma: 'es5',
+      },
+    },
+    {
+      files: ['*.json'],
+      options: {
+        singleQuote: false,
+      },
+    },
+    {
+      files: ['*.hbs'],
+      options: {
+        singleQuote: false,
+      },
+    },
+    {
+      files: ['*.gjs', '*.gts'],
+      options: {
+        singleQuote: true,
+        templateSingleQuote: false,
+        trailingComma: 'es5',
+      },
+    },
+  ],
+};
diff --git a/files-override/app/app.js b/files-override/app/app.ts
similarity index 100%
rename from files-override/app/app.js
rename to files-override/app/app.ts
diff --git a/files-override/tsconfig.json b/files-override/tsconfig.json
new file mode 100644
index 0000000..db88a01
--- /dev/null
+++ b/files-override/tsconfig.json
@@ -0,0 +1,46 @@
+{
+  "extends": "@tsconfig/ember/tsconfig.json",
+  "include": [
+    "app/**/*",
+    "tests/**/*",
+  ],
+  "glint": {
+    "environment": [
+      "ember-loose",
+      "ember-template-imports"
+    ]
+  },
+  "compilerOptions": {
+    "allowJs": true,
+    /**
+      https://www.typescriptlang.org/tsconfig#noEmitOnError
+      Do not block emit on TS errors.
+    */
+    "noEmitOnError": false,
+
+    "declaration": false,
+    "declarationMap": false,
+
+    /**
+      https://www.typescriptlang.org/tsconfig#allowImportingTsExtensions
+
+      We want our tooling to know how to resolve our custom files so the appropriate plugins
+      can do the proper transformations on those files.
+    */
+    "allowImportingTsExtensions": true,
+    "paths": {
+      "<%= name %./tests/*": [
+        "./tests/*"
+      ],
+      "<%= naem %./*": [
+        "./app/*"
+      ],
+      "*": [
+        "./types/*"
+      ]
+    },
+    "types": [
+      "ember-source/types"
+    ]
+  },
+}
diff --git a/files/babel.config.cjs b/files/babel.config.cjs
index 419088a..9572987 100644
--- a/files/babel.config.cjs
+++ b/files/babel.config.cjs
@@ -5,6 +5,14 @@ const {
 
 module.exports = {
   plugins: [
+    [
+      '@babel/plugin-transform-typescript',
+      {
+        allExtensions: true,
+        onlyRemoveTypeImports: true,
+        allowDeclareFields: true,
+      },
+    ],
     [
       'babel-plugin-ember-template-compilation',
       {
diff --git a/index.js b/index.js
index 669af02..d9bf4af 100644
--- a/index.js
+++ b/index.js
@@ -37,6 +37,29 @@ module.exports = {
         'vite',
         '@rollup/plugin-babel',
         'decorator-transforms',
+
+        // Dependencies out of date from upstream
+        '@ember/string',
+        'ember-resolver',
+        'eslint-plugin-ember',
+        'ember-template-lint',
+        'qunit-dom',
+        'stylelint',
+        'stylelint-prettier',
+        'stylelint-config-standard',
+        'concurrently',
+        'prettier-plugin-ember-template-tag',
+
+        // TypeScript
+        // Note that Vite supports TypeScript with 0 configuration on the user's part
+        '@babel/plugin-transform-typescript',
+        'typescript',
+        '@glint/core',
+        '@glint/environment-ember-loose', // currently required :(
+        '@glint/environment-ember-template-imports',
+        '@glint/template',
+        '@typescript-eslint/eslint-plugin',
+        '@typescript-eslint/parser',
       ],
       packageManager: options.packageManager,
     });
@@ -50,6 +73,34 @@ module.exports = {
       'ember-cli-dependency-checker',
       'ember-cli-sri',
       'ember-cli-terser',
+
+      // Upstream TypeScript blueprint is too conservative
+      // at the same time, ember-data has been what's holding it back
+      '@types/ember-data',
+      '@types/ember-data__adapter',
+      '@types/ember-data__model',
+      '@types/ember-data__serializer',
+      '@types/ember-data__store',
+      '@types/ember__application',
+      '@types/ember__array',
+      '@types/ember__component',
+      '@types/ember__controller',
+      '@types/ember__debug',
+      '@types/ember__destroyable',
+      '@types/ember__engine',
+      '@types/ember__error',
+      '@types/ember__helper',
+      '@types/ember__modifier',
+      '@types/ember__object',
+      '@types/ember__owner',
+      '@types/ember__polyfills',
+      '@types/ember__routing',
+      '@types/ember__runloop',
+      '@types/ember__service',
+      '@types/ember__string',
+      '@types/ember__template',
+      '@types/ember__test',
+      '@types/ember__utils',
     ];
 
     for (const package of packages) {
@@ -67,7 +118,7 @@ module.exports = {
   },
 
   async afterInstall(options) {
-    const filesToDelete = ['app/index.html'];
+    const filesToDelete = ['app/index.html', '.eslintrc.js', '.prettierrc.js'];
 
     for (let file of filesToDelete) {
       await rm(join(options.target, file));