diff --git a/packages/env/index.ts b/packages/env/index.ts
index b9a06968..87135c5e 100644
--- a/packages/env/index.ts
+++ b/packages/env/index.ts
@@ -1,15 +1,33 @@
 import { createEnv } from '@t3-oss/env-nextjs';
 import { z } from 'zod';
 
-const server: Parameters<typeof createEnv>[0]['server'] = {
-  CLERK_SECRET_KEY: z.string().min(1).startsWith('sk_'),
-  CLERK_WEBHOOK_SECRET: z.string().min(1).startsWith('whsec_'),
-  RESEND_AUDIENCE_ID: z.string().min(1),
-  RESEND_FROM: z.string().min(1).email(),
+// Define service enable flags
+const baseSchema = {
+  ENABLE_CLERK: z.boolean().default(false),
+  ENABLE_STRIPE: z.boolean().default(false),
+  ENABLE_RESEND: z.boolean().default(false),
+};
+
+// Define service-specific schemas
+const clerkSchema = {
+  CLERK_SECRET_KEY: z.string().min(1).startsWith('sk_').optional(),
+  CLERK_WEBHOOK_SECRET: z.string().min(1).startsWith('whsec_').optional(),
+};
+
+const stripeSchema = {
+  STRIPE_SECRET_KEY: z.string().min(1).startsWith('sk_').optional(),
+  STRIPE_WEBHOOK_SECRET: z.string().min(1).startsWith('whsec_').optional(),
+};
+
+const resendSchema = {
+  RESEND_AUDIENCE_ID: z.string().min(1).optional(),
+  RESEND_FROM: z.string().min(1).email().optional(),
+  RESEND_TOKEN: z.string().min(1).startsWith('re_').optional(),
+};
+
+// Add other server variables
+const serverBaseSchema = {
   DATABASE_URL: z.string().min(1).url(),
-  RESEND_TOKEN: z.string().min(1).startsWith('re_'),
-  STRIPE_SECRET_KEY: z.string().min(1).startsWith('sk_'),
-  STRIPE_WEBHOOK_SECRET: z.string().min(1).startsWith('whsec_'),
   BETTERSTACK_API_KEY: z.string().min(1),
   BETTERSTACK_URL: z.string().min(1).url(),
   ARCJET_KEY: z.string().min(1).startsWith('ajkey_'),
@@ -19,18 +37,24 @@ const server: Parameters<typeof createEnv>[0]['server'] = {
     .min(1)
     .startsWith('sk_')
     .or(z.string().min(1).startsWith('testsk_')),
-
-  // Added by Sentry Integration, Vercel Marketplace
   SENTRY_ORG: z.string().min(1).optional(),
   SENTRY_PROJECT: z.string().min(1).optional(),
-
-  // Added by Vercel
   VERCEL: z.string().optional(),
   NEXT_RUNTIME: z.enum(['nodejs', 'edge']).optional(),
   FLAGS_SECRET: z.string().min(1),
 };
 
-const client: Parameters<typeof createEnv>[0]['client'] = {
+// Dynamically build the server schema based on enabled services
+const server = {
+  ...baseSchema,
+  ...serverBaseSchema,
+  ...(process.env.ENABLE_CLERK === 'true' ? clerkSchema : {}),
+  ...(process.env.ENABLE_STRIPE === 'true' ? stripeSchema : {}),
+  ...(process.env.ENABLE_RESEND === 'true' ? resendSchema : {}),
+};
+
+// Define client schema
+const client = {
   NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY: z.string().min(1).startsWith('pk_'),
   NEXT_PUBLIC_CLERK_SIGN_IN_URL: z.string().min(1).startsWith('/'),
   NEXT_PUBLIC_CLERK_SIGN_UP_URL: z.string().min(1).startsWith('/'),
@@ -42,15 +66,17 @@ const client: Parameters<typeof createEnv>[0]['client'] = {
   NEXT_PUBLIC_GA_MEASUREMENT_ID: z.string().min(1).startsWith('G-'),
   NEXT_PUBLIC_POSTHOG_KEY: z.string().min(1).startsWith('phc_'),
   NEXT_PUBLIC_POSTHOG_HOST: z.string().min(1).url(),
-
-  // Added by Vercel
   NEXT_PUBLIC_VERCEL_PROJECT_PRODUCTION_URL: z.string().min(1).url(),
 };
 
+// Export the environment variables
 export const env = createEnv({
   client,
   server,
   runtimeEnv: {
+    ENABLE_CLERK: process.env.ENABLE_CLERK === 'true',
+    ENABLE_STRIPE: process.env.ENABLE_STRIPE === 'true',
+    ENABLE_RESEND: process.env.ENABLE_RESEND === 'true',
     CLERK_SECRET_KEY: process.env.CLERK_SECRET_KEY,
     CLERK_WEBHOOK_SECRET: process.env.CLERK_WEBHOOK_SECRET,
     RESEND_AUDIENCE_ID: process.env.RESEND_AUDIENCE_ID,
@@ -69,21 +95,17 @@ export const env = createEnv({
     NEXT_RUNTIME: process.env.NEXT_RUNTIME,
     FLAGS_SECRET: process.env.FLAGS_SECRET,
     SVIX_TOKEN: process.env.SVIX_TOKEN,
-    NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY:
-      process.env.NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY,
+    NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY: process.env.NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY,
     NEXT_PUBLIC_CLERK_SIGN_IN_URL: process.env.NEXT_PUBLIC_CLERK_SIGN_IN_URL,
     NEXT_PUBLIC_CLERK_SIGN_UP_URL: process.env.NEXT_PUBLIC_CLERK_SIGN_UP_URL,
-    NEXT_PUBLIC_CLERK_AFTER_SIGN_IN_URL:
-      process.env.NEXT_PUBLIC_CLERK_AFTER_SIGN_IN_URL,
-    NEXT_PUBLIC_CLERK_AFTER_SIGN_UP_URL:
-      process.env.NEXT_PUBLIC_CLERK_AFTER_SIGN_UP_URL,
+    NEXT_PUBLIC_CLERK_AFTER_SIGN_IN_URL: process.env.NEXT_PUBLIC_CLERK_AFTER_SIGN_IN_URL,
+    NEXT_PUBLIC_CLERK_AFTER_SIGN_UP_URL: process.env.NEXT_PUBLIC_CLERK_AFTER_SIGN_UP_URL,
     NEXT_PUBLIC_APP_URL: process.env.NEXT_PUBLIC_APP_URL,
     NEXT_PUBLIC_WEB_URL: process.env.NEXT_PUBLIC_WEB_URL,
     NEXT_PUBLIC_DOCS_URL: process.env.NEXT_PUBLIC_DOCS_URL,
     NEXT_PUBLIC_GA_MEASUREMENT_ID: process.env.NEXT_PUBLIC_GA_MEASUREMENT_ID,
     NEXT_PUBLIC_POSTHOG_KEY: process.env.NEXT_PUBLIC_POSTHOG_KEY,
     NEXT_PUBLIC_POSTHOG_HOST: process.env.NEXT_PUBLIC_POSTHOG_HOST,
-    NEXT_PUBLIC_VERCEL_PROJECT_PRODUCTION_URL:
-      process.env.NEXT_PUBLIC_VERCEL_PROJECT_PRODUCTION_URL,
+    NEXT_PUBLIC_VERCEL_PROJECT_PRODUCTION_URL: process.env.NEXT_PUBLIC_VERCEL_PROJECT_PRODUCTION_URL,
   },
 });