diff --git a/Dockerfile b/Dockerfile
index 964c0ad..cacdc32 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ RUN apk add --no-cache \
     python3 \
     py3-pip \
     ffmpeg \
-    && pip3 install --no-cache-dir yt-dlp
+    && pip3 install --no-cache-dir --break-system-packages yt-dlp
 
 WORKDIR /app
 
diff --git a/astro.config.mjs b/astro.config.mjs
index a000f63..5e98372 100644
--- a/astro.config.mjs
+++ b/astro.config.mjs
@@ -12,6 +12,10 @@ export default defineConfig({
   adapter: node({
     mode: 'standalone'
   }),
+  server: {
+    host: '0.0.0.0',
+    port: 4321
+  },
   i18n: {
     defaultLocale: 'de',
     locales: ['de', 'en'],
@@ -20,4 +24,3 @@ export default defineConfig({
     }
   }
 });
-
diff --git a/src/components/DownloadForm.astro b/src/components/DownloadForm.astro
index b643ed6..0c54c6b 100644
--- a/src/components/DownloadForm.astro
+++ b/src/components/DownloadForm.astro
@@ -1,7 +1,7 @@
 ---
 import { t } from "../lib/i18n";
 
-const streamOnly = import.meta.env.STREAM_ONLY === "true";
+const streamOnly = process.env.STREAM_ONLY === "true";
 ---
 
 <div class="container mx-auto px-4 py-8 max-w-2xl">
diff --git a/src/layouts/Layout.astro b/src/layouts/Layout.astro
index cfbe624..5e2aa3f 100644
--- a/src/layouts/Layout.astro
+++ b/src/layouts/Layout.astro
@@ -10,7 +10,7 @@ interface Props {
 const { title } = Astro.props;
 const loginEnabled = isLoginEnabled();
 const session = await getSession(Astro.request);
-const streamOnly = import.meta.env.STREAM_ONLY === "true";
+const streamOnly = process.env.STREAM_ONLY === "true";
 const locale = getLocale(Astro);
 ---
 
diff --git a/src/lib/i18n.ts b/src/lib/i18n.ts
index 6e3415a..6e4aab4 100644
--- a/src/lib/i18n.ts
+++ b/src/lib/i18n.ts
@@ -14,7 +14,7 @@ const translations: Record<string, Translations> = {
  */
 export function getLocale(astro: AstroGlobal): string {
   // Check environment variable first (for Docker/container environments)
-  const envLocale = import.meta.env.LOCALE;
+  const envLocale = process.env.LOCALE;
   if (envLocale && (envLocale === 'de' || envLocale === 'en')) {
     return envLocale;
   }
@@ -26,7 +26,7 @@ export function getLocale(astro: AstroGlobal): string {
  */
 export function getLocaleFromRequest(request: Request): string {
   // Check environment variable first (for Docker/container environments)
-  const envLocale = import.meta.env.LOCALE;
+  const envLocale = process.env.LOCALE;
   if (envLocale && (envLocale === 'de' || envLocale === 'en')) {
     return envLocale;
   }
diff --git a/src/lib/session.ts b/src/lib/session.ts
index 521b526..3959f43 100644
--- a/src/lib/session.ts
+++ b/src/lib/session.ts
@@ -1,7 +1,7 @@
 import type { Request } from 'astro';
 
 const SESSION_COOKIE = 'session';
-const SESSION_SECRET = import.meta.env.SESSION_SECRET || 'default-secret-change-in-production';
+const SESSION_SECRET = process.env.SESSION_SECRET || 'default-secret-change-in-production';
 
 export interface Session {
   username: string;
@@ -13,7 +13,7 @@ export interface Session {
  * Wenn LOGIN=false oder nicht gesetzt, ist Login deaktiviert
  */
 export function isLoginEnabled(): boolean {
-  const loginEnabled = import.meta.env.LOGIN;
+  const loginEnabled = process.env.LOGIN;
   // Wenn LOGIN explizit auf "false" gesetzt ist, ist Login deaktiviert
   // Ansonsten ist Login aktiviert (Standard-Verhalten)
   return loginEnabled !== "false";
@@ -52,4 +52,3 @@ export function createSessionCookie(session: Session): string {
 export function clearSessionCookie(): string {
   return `${SESSION_COOKIE}=; HttpOnly; Path=/; Max-Age=0; SameSite=Lax`;
 }
-
diff --git a/src/pages/api/download-file.ts b/src/pages/api/download-file.ts
index b50eb3e..d684330 100644
--- a/src/pages/api/download-file.ts
+++ b/src/pages/api/download-file.ts
@@ -25,7 +25,7 @@ export const GET: APIRoute = async ({ request }) => {
 
     // Download-Verzeichnis aus Environment-Variable
     const downloadDir =
-      import.meta.env.DOWNLOAD_DIR || path.join(process.cwd(), "downloaded");
+      process.env.DOWNLOAD_DIR || path.join(process.cwd(), "downloaded");
 
     const filePath = path.join(downloadDir, fileName);
 
diff --git a/src/pages/api/download.ts b/src/pages/api/download.ts
index 582e32a..3d53d23 100644
--- a/src/pages/api/download.ts
+++ b/src/pages/api/download.ts
@@ -48,7 +48,7 @@ export const POST: APIRoute = async ({ request }) => {
     }
 
     // Prüfe ob Stream-Modus aktiviert ist
-    const streamOnly = import.meta.env.STREAM_ONLY === "true";
+    const streamOnly = process.env.STREAM_ONLY === "true";
 
     // yt-dlp-wrap Instanz erstellen
     const ytDlpWrap = new YTDlpWrap();
@@ -154,7 +154,7 @@ export const POST: APIRoute = async ({ request }) => {
     } else {
       // NORMALER MODUS: Datei speichern wie bisher
       const downloadDir =
-        import.meta.env.DOWNLOAD_DIR || path.join(process.cwd(), "downloaded");
+        process.env.DOWNLOAD_DIR || path.join(process.cwd(), "downloaded");
 
       // Verzeichnis erstellen falls nicht vorhanden
       try {
diff --git a/src/pages/api/files.ts b/src/pages/api/files.ts
index 4181980..8379a1d 100644
--- a/src/pages/api/files.ts
+++ b/src/pages/api/files.ts
@@ -19,7 +19,7 @@ export const GET: APIRoute = async ({ request }) => {
   }
 
   // Prüfe ob Stream-Modus aktiviert ist
-  const streamOnly = import.meta.env.STREAM_ONLY === "true";
+  const streamOnly = process.env.STREAM_ONLY === "true";
   if (streamOnly) {
     return new Response(
       JSON.stringify({ 
@@ -36,7 +36,7 @@ export const GET: APIRoute = async ({ request }) => {
   try {
     // Download-Verzeichnis aus Environment-Variable
     const downloadDir =
-      import.meta.env.DOWNLOAD_DIR || path.join(process.cwd(), "downloaded");
+      process.env.DOWNLOAD_DIR || path.join(process.cwd(), "downloaded");
 
     if (!existsSync(downloadDir)) {
       return new Response(JSON.stringify({ files: [] }), {
diff --git a/src/pages/api/login.ts b/src/pages/api/login.ts
index 138a82b..c3da6a6 100644
--- a/src/pages/api/login.ts
+++ b/src/pages/api/login.ts
@@ -16,8 +16,8 @@ export const POST: APIRoute = async ({ request }) => {
   const password = formData.get('password')?.toString();
   
   // Credentials aus Environment-Variablen
-  const envUsername = import.meta.env.LOGIN_USERNAME;
-  const envPassword = import.meta.env.LOGIN_PASSWORD;
+  const envUsername = process.env.LOGIN_USERNAME;
+  const envPassword = process.env.LOGIN_PASSWORD;
   
   // Prüfe ob Credentials konfiguriert sind
   if (!envUsername || !envPassword) {
diff --git a/src/pages/files.astro b/src/pages/files.astro
index 5ab393d..816cf84 100644
--- a/src/pages/files.astro
+++ b/src/pages/files.astro
@@ -11,7 +11,7 @@ if (loginEnabled && !session) {
   return Astro.redirect('/');
 }
 
-const streamOnly = import.meta.env.STREAM_ONLY === "true";
+const streamOnly = process.env.STREAM_ONLY === "true";
 ---
 
 <Layout title={t(Astro, "files.title")}>