diff --git a/.env.example b/.env.example
index e00fc24..5b54340 100644
--- a/.env.example
+++ b/.env.example
@@ -1,12 +1,22 @@
 # Docker WebUI Configuration
 # Copy this file to .env and customize your settings
 
+# ===============================================
+# FRONTEND BUILD VARIABLES (REQUIRED)
+# These are used at build time by Vite. Fill them before building.
+# Get the values from your backend settings.
+VITE_SUPABASE_URL=
+VITE_SUPABASE_PUBLISHABLE_KEY=
+VITE_SUPABASE_PROJECT_ID=
+
+# Optional: Port to expose the web UI
+PORT=8080
+
 # ===============================================
 # ADMIN CREDENTIALS
 # ===============================================
 # IMPORTANT: Change these before first run!
 # These credentials are used to create the admin account
-
 ADMIN_EMAIL=admin@docker-webui.local
 ADMIN_PASSWORD=changeme123
 
@@ -15,5 +25,4 @@ ADMIN_PASSWORD=changeme123
 # ===============================================
 # Set your server timezone
 # Examples: Europe/Copenhagen, America/New_York, Asia/Tokyo
-
 TZ=Europe/Copenhagen
diff --git a/Dockerfile b/Dockerfile
index 228006c..04b0855 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,6 +12,14 @@ RUN npm ci
 # Copy source files
 COPY . .
 
+# Build-time env for Vite (supplied via build args)
+ARG VITE_SUPABASE_URL
+ARG VITE_SUPABASE_PUBLISHABLE_KEY
+ARG VITE_SUPABASE_PROJECT_ID
+ENV VITE_SUPABASE_URL=${VITE_SUPABASE_URL}
+ENV VITE_SUPABASE_PUBLISHABLE_KEY=${VITE_SUPABASE_PUBLISHABLE_KEY}
+ENV VITE_SUPABASE_PROJECT_ID=${VITE_SUPABASE_PROJECT_ID}
+
 # Build the app
 RUN npm run build
 
diff --git a/docker-compose.yml b/docker-compose.yml
index 5d7bffe..a9330f6 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -5,8 +5,13 @@ services:
     build:
       context: .
       dockerfile: Dockerfile
+      args:
+        VITE_SUPABASE_URL: ${VITE_SUPABASE_URL}
+        VITE_SUPABASE_PUBLISHABLE_KEY: ${VITE_SUPABASE_PUBLISHABLE_KEY}
+        VITE_SUPABASE_PROJECT_ID: ${VITE_SUPABASE_PROJECT_ID}
     container_name: docker-webui
-    network_mode: host
+    ports:
+      - "${PORT:-8080}:8080"
     environment:
       - TZ=${TZ:-Europe/Copenhagen}
       - ADMIN_EMAIL=${ADMIN_EMAIL:-admin@docker-webui.local}
diff --git a/src/pages/Login.tsx b/src/pages/Login.tsx
index f080919..708ac87 100644
--- a/src/pages/Login.tsx
+++ b/src/pages/Login.tsx
@@ -44,9 +44,11 @@ const Login = () => {
     setLoading(true);
 
     try {
+      const redirectUrl = `${window.location.origin}/`;
       const { error } = await supabase.auth.signUp({
         email,
         password,
+        options: { emailRedirectTo: redirectUrl }
       });
 
       if (error) throw error;