diff --git a/tests/test/app/server-only/api+api.tsx b/tests/test/app/server-only/api+api.tsx
new file mode 100644
index 000000000..295bf348c
--- /dev/null
+++ b/tests/test/app/server-only/api+api.tsx
@@ -0,0 +1,8 @@
+// import 'server-only'
+
+export async function GET() {
+  return new Response(JSON.stringify({ success: true }), {
+    status: 200,
+    headers: { 'Content-Type': 'application/json' },
+  })
+}
diff --git a/tests/test/app/server-only/spa+spa.tsx b/tests/test/app/server-only/spa+spa.tsx
new file mode 100644
index 000000000..4bf115318
--- /dev/null
+++ b/tests/test/app/server-only/spa+spa.tsx
@@ -0,0 +1,8 @@
+// import 'server-only'
+// import { Text } from 'tamagui'
+
+// export default () => <Text>This should't render since 'server-only' is imported. If you see this in the browser, things are going wrong.</Text>
+
+// Can't test like this since it'll break the build
+
+export default () => null
diff --git a/tests/test/package.json b/tests/test/package.json
index 7301ac837..a68ad5379 100644
--- a/tests/test/package.json
+++ b/tests/test/package.json
@@ -30,6 +30,7 @@
     "react-native-screens": "4.4.0",
     "react-native-svg": "15.8.0",
     "react-native-web": "^0.19.12",
+    "server-only": "^0.0.1",
     "tamagui": "^1.121.6"
   },
   "devDependencies": {
diff --git a/tests/test/routes.d.ts b/tests/test/routes.d.ts
index 70746c8ce..3333b39d2 100644
--- a/tests/test/routes.d.ts
+++ b/tests/test/routes.d.ts
@@ -3,7 +3,7 @@ import type { OneRouter } from 'one'
 declare module 'one' {
   export namespace OneRouter {
     export interface __routes<T extends string = string> extends Record<string, unknown> {
-      StaticRoutes: `/` | `/(blog)` | `/(blog)/blog/my-first-post` | `/(marketing)/about` | `/_sitemap` | `/about` | `/blog/my-first-post` | `/middleware` | `/not-found/deep/test` | `/not-found/fallback/test` | `/not-found/test` | `/spa/spapage` | `/ssr/basic` | `/sub-page` | `/sub-page/sub` | `/sub-page/sub2`
+      StaticRoutes: `/` | `/(blog)` | `/(blog)/blog/my-first-post` | `/(marketing)/about` | `/_sitemap` | `/about` | `/blog/my-first-post` | `/middleware` | `/not-found/deep/test` | `/not-found/fallback/test` | `/not-found/test` | `/server-only/spa` | `/spa/spapage` | `/ssr/basic` | `/sub-page` | `/sub-page/sub` | `/sub-page/sub2`
       DynamicRoutes: `/not-found/+not-found` | `/not-found/deep/+not-found` | `/spa/${OneRouter.SingleRoutePart<T>}` | `/ssr/${OneRouter.SingleRoutePart<T>}` | `/ssr/${string}`
       DynamicRouteTemplate: `/not-found/+not-found` | `/not-found/deep/+not-found` | `/spa/[spaparams]` | `/ssr/[...rest]` | `/ssr/[param]`
       IsTyped: true
diff --git a/tests/test/tests/server-only.test.ts b/tests/test/tests/server-only.test.ts
new file mode 100644
index 000000000..d8f030651
--- /dev/null
+++ b/tests/test/tests/server-only.test.ts
@@ -0,0 +1,13 @@
+import { describe, expect, test, it } from 'vitest'
+import { fetchDevAndProd } from './utils/fetchDevAndProd'
+
+describe('server-only', () => {
+  it('should not break API routes', async () => {
+    const [devRes, prodRes] = await fetchDevAndProd('/server-only/api', 'text')
+    debugger
+  })
+  it('should break SPA routes', async () => {
+    const [devRes, prodRes] = await fetchDevAndProd('/server-only/spa', 'text')
+    debugger
+  })
+})
diff --git a/tests/test/tests/test-middleware.test.ts b/tests/test/tests/test-middleware.test.ts
index bf5374a33..caf0cd9fc 100644
--- a/tests/test/tests/test-middleware.test.ts
+++ b/tests/test/tests/test-middleware.test.ts
@@ -1,22 +1,5 @@
 import { describe, expect, test } from 'vitest'
-
-// set this up for testing, pausing
-async function fetchDevAndProd(path = '/', type: 'text' | 'json' | 'headers') {
-  return await Promise.all([
-    fetch(`http://localhost:3111${path}`).then((res) => {
-      if (type === 'headers') {
-        return res.headers
-      }
-      return res[type]()
-    }),
-    fetch(`http://localhost:3112${path}`).then((res) => {
-      if (type === 'headers') {
-        return res.headers
-      }
-      return res[type]()
-    }),
-  ] as const)
-}
+import { fetchDevAndProd } from './utils/fetchDevAndProd'
 
 describe('Middleware', () => {
   test('root middleware doesnt intercept', async () => {
diff --git a/tests/test/tests/utils/fetchDevAndProd.ts b/tests/test/tests/utils/fetchDevAndProd.ts
new file mode 100644
index 000000000..62d28c034
--- /dev/null
+++ b/tests/test/tests/utils/fetchDevAndProd.ts
@@ -0,0 +1,17 @@
+// set this up for testing, pausing
+export async function fetchDevAndProd(path = '/', type: 'text' | 'json' | 'headers') {
+  return await Promise.all([
+    fetch(`http://localhost:3111${path}`).then((res) => {
+      if (type === 'headers') {
+        return res.headers
+      }
+      return res[type]()
+    }),
+    fetch(`http://localhost:3112${path}`).then((res) => {
+      if (type === 'headers') {
+        return res.headers
+      }
+      return res[type]()
+    }),
+  ] as const)
+}
diff --git a/yarn.lock b/yarn.lock
index cb96513f2..235e936e3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -24866,6 +24866,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"server-only@npm:^0.0.1":
+  version: 0.0.1
+  resolution: "server-only@npm:0.0.1"
+  checksum: 10/c432348956641ea3f460af8dc3765f3a1bdbcf7a1e0205b0756d868e6e6fe8934cdee6bff68401a1dd49ba4a831c75916517a877446d54b334f7de36fa273e53
+  languageName: node
+  linkType: hard
+
 "set-blocking@npm:^2.0.0":
   version: 2.0.0
   resolution: "set-blocking@npm:2.0.0"
@@ -26255,6 +26262,7 @@ __metadata:
     react-native-screens: "npm:4.4.0"
     react-native-svg: "npm:15.8.0"
     react-native-web: "npm:^0.19.12"
+    server-only: "npm:^0.0.1"
     tamagui: "npm:^1.121.6"
     tsx: "npm:^4.19.0"
     vite: "npm:^6.0.6"