diff --git a/packages/sv/src/addons/better-auth.ts b/packages/sv/src/addons/better-auth.ts
index 838a407d3..3dc18859b 100644
--- a/packages/sv/src/addons/better-auth.ts
+++ b/packages/sv/src/addons/better-auth.ts
@@ -41,6 +41,9 @@ export default defineAddon({
 		runsAfter('tailwindcss');
 	},
 	run: ({ sv, language, options, directory, dependencyVersion, file }) => {
+		const svelte5 = !!dependencyVersion('svelte')?.startsWith('5');
+		const [ts, s5] = createPrinter(language === 'ts', svelte5);
+
 		const demoPassword = options.demo.includes('password');
 		const demoGithub = options.demo.includes('github');
 		const hasDemo = demoPassword || demoGithub;
@@ -135,9 +138,9 @@ export default defineAddon({
 						plugins: [
 							sveltekitCookies(getRequestEvent) // make sure this is the last plugin in the array
 						],
-					}${language === 'ts' ? ' satisfies Omit<Parameters<typeof betterAuth>[0], "database">' : ''};
+					}${ts(' satisfies Omit<Parameters<typeof betterAuth>[0], "database">')};
 
-					export const createAuth = (d1${language === 'ts' ? ': D1Database' : ''}) => betterAuth({
+					export const createAuth = (d1${ts(': D1Database')}) => betterAuth({
 						...authConfig,
 						database: drizzleAdapter(getDb(d1), { provider: '${provider}' }),
 					});
@@ -148,7 +151,7 @@ export default defineAddon({
 					 * This instance is used by the \`better-auth\` CLI for schema generation ONLY.
 					 * To access \`auth\` at runtime, use \`event.locals.auth\`.
 					 */
-					export const auth = createAuth(${language === 'ts' ? 'null!' : 'null'});`;
+					export const auth = createAuth(null${ts('!')});`;
 				} else {
 					authConfig = dedent`
 					export const auth = betterAuth({
@@ -297,8 +300,6 @@ export default defineAddon({
 						return false;
 					}
 
-					const [ts] = createPrinter(language === 'ts');
-
 					const d1AuthLine = d1 ? '\n\t\t\t\t\t\t\tconst { auth } = event.locals;\n' : '';
 
 					const signInEmailAction = demoPassword
@@ -409,9 +410,6 @@ export default defineAddon({
 					? ' class="bg-blue-600 text-white px-4 py-2 rounded-md hover:bg-blue-700 transition"'
 					: '';
 
-				const svelte5 = !!dependencyVersion('svelte')?.startsWith('5');
-				const [ts, s5] = createPrinter(language === 'ts', svelte5);
-
 				const passwordForm = demoPassword
 					? `
 					<form method="post" action="?/signInEmail" use:enhance>
@@ -465,7 +463,6 @@ export default defineAddon({
 					return false;
 				}
 
-				const [ts] = createPrinter(language === 'ts');
 				const d1AuthLine = d1 ? '\n\t\t\t\t\t\t\tconst { auth } = event.locals;\n' : '';
 				return dedent`
 					import { redirect } from '@sveltejs/kit';
@@ -502,8 +499,6 @@ export default defineAddon({
 				const twBtnClasses =
 					'class="bg-blue-600 text-white px-4 py-2 rounded-md hover:bg-blue-700 transition"';
 
-				const svelte5 = !!dependencyVersion('svelte')?.startsWith('5');
-				const [ts, s5] = createPrinter(language === 'ts', svelte5);
 				return dedent`
 					<script ${ts("lang='ts'")}>
 						import { enhance } from '$app/forms';
diff --git a/packages/sv/src/addons/drizzle.ts b/packages/sv/src/addons/drizzle.ts
index 621191057..f61e63b2d 100644
--- a/packages/sv/src/addons/drizzle.ts
+++ b/packages/sv/src/addons/drizzle.ts
@@ -4,7 +4,8 @@ import {
 	type TransformFn,
 	transforms,
 	resolveCommand,
-	fileExists
+	fileExists,
+	createPrinter
 } from '@sveltejs/sv-utils';
 import crypto from 'node:crypto';
 import fs from 'node:fs';
@@ -93,7 +94,7 @@ export default defineAddon({
 			return cancel('Cloudflare D1 requires @sveltejs/adapter-cloudflare - add the adapter first');
 		}
 
-		const typescript = language === 'ts';
+		const [ts] = createPrinter(language === 'ts');
 		const baseDBPath = path.resolve(cwd, directory.lib, 'server', 'db');
 		const paths = {
 			'drizzle config': path.resolve(cwd, `drizzle.config.${language}`),
@@ -349,7 +350,7 @@ export default defineAddon({
 					js.imports.addNamed(ast, { from: 'drizzle-orm/d1', imports: ['drizzle'] });
 
 					const getDbFn = js.common.parseStatement(
-						`export const getDb = (d1${typescript ? ': D1Database' : ''}) => drizzle(d1, { schema });`
+						`export const getDb = (d1${ts(': D1Database')} => drizzle(d1, { schema });`
 					);
 
 					ast.body.push(getDbFn);
diff --git a/packages/sv/src/addons/sveltekit-adapter.ts b/packages/sv/src/addons/sveltekit-adapter.ts
index e4cd55a9e..bbb9f5fb2 100644
--- a/packages/sv/src/addons/sveltekit-adapter.ts
+++ b/packages/sv/src/addons/sveltekit-adapter.ts
@@ -5,8 +5,7 @@ import {
 	transforms,
 	fileExists,
 	getPackageJson,
-	sanitizeName,
-	commonFilePaths
+	sanitizeName
 } from '@sveltejs/sv-utils';
 import { defineAddon, defineAddonOptions } from '../core/config.ts';
 
@@ -47,7 +46,7 @@ export default defineAddon({
 	setup: ({ isKit, unsupported }) => {
 		if (!isKit) unsupported('Requires SvelteKit');
 	},
-	run: ({ sv, options, file, cwd, language }) => {
+	run: ({ sv, options, file, cwd }) => {
 		const adapter = adapters.find((a) => a.id === options.adapter)!;
 
 		// removes previously installed adapters
@@ -178,10 +177,7 @@ export default defineAddon({
 					: transforms.json(({ data }) => applyWranglerConfig(data))
 			);
 
-			const jsconfig = fileExists(cwd, commonFilePaths.jsconfig);
-			const typeChecked = language === 'ts' || jsconfig;
-
-			if (typeChecked) {
+			if (file.typeConfig) {
 				sv.file(
 					file.gitignore,
 					transforms.text(({ content }) => {
@@ -200,9 +196,9 @@ export default defineAddon({
 					})
 				);
 
-				// Add Cloudflare generated types to tsconfig
+				// Add Cloudflare generated types to jsconfig/tsconfig
 				sv.file(
-					jsconfig ? commonFilePaths.jsconfig : commonFilePaths.tsconfig,
+					file.typeConfig,
 					transforms.json(({ data }) => {
 						data.compilerOptions ??= {};
 						data.compilerOptions.types ??= [];
diff --git a/packages/sv/src/core/workspace.ts b/packages/sv/src/core/workspace.ts
index b660833e8..987787419 100644
--- a/packages/sv/src/core/workspace.ts
+++ b/packages/sv/src/core/workspace.ts
@@ -31,6 +31,7 @@ export type Workspace = {
 	file: {
 		viteConfig: 'vite.config.js' | 'vite.config.ts';
 		svelteConfig: 'svelte.config.js' | 'svelte.config.ts';
+		typeConfig: 'jsconfig.json' | 'tsconfig.json' | undefined;
 		/** `${directory.routes}/layout.css` or `src/app.css` */
 		stylesheet: `${string}/layout.css` | 'src/app.css';
 		package: 'package.json';
@@ -75,9 +76,9 @@ export async function createWorkspace({
 	const resolvedCwd = path.resolve(cwd);
 
 	// Will go up and prioritize jsconfig.json as it's first in the array
-	const jtsConfigPath = find.any([commonFilePaths.jsconfig, commonFilePaths.tsconfig], { cwd });
-	const typescript = jtsConfigPath?.endsWith(commonFilePaths.tsconfig) ?? false;
-
+	const typeConfigOptions = [commonFilePaths.jsconfig, commonFilePaths.tsconfig];
+	const typeConfig = find.any(typeConfigOptions, { cwd }) as Workspace['file']['typeConfig'];
+	const typescript = typeConfig?.endsWith(commonFilePaths.tsconfig) ?? false;
 	// This is not linked with typescript detection
 	const viteConfigPath = path.join(resolvedCwd, commonFilePaths.viteConfigTS);
 	const viteConfig = fs.existsSync(viteConfigPath)
@@ -137,6 +138,7 @@ export async function createWorkspace({
 		file: {
 			viteConfig,
 			svelteConfig,
+			typeConfig,
 			stylesheet,
 			package: 'package.json',
 			gitignore: '.gitignore',