diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
index bb09c08e33..823c8c80e1 100644
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -19,18 +19,22 @@ services:
       - PHP_FPM_PM_START_SERVERS=${PHP_FPM_PM_START_SERVERS:-1}
       - PHP_FPM_PM_MIN_SPARE_SERVERS=${PHP_FPM_PM_MIN_SPARE_SERVERS:-1}
       - PHP_FPM_PM_MAX_SPARE_SERVERS=${PHP_FPM_PM_MAX_SPARE_SERVERS:-10}
-      - PUSHER_PORT=${PUSHER_PORT:-6001}
       - PUSHER_BACKEND_PORT=${PUSHER_BACKEND_PORT:-6001}
     env_file:
       - /data/coolify/source/.env
     ports:
       - "${APP_PORT:-8000}:8080"
       - "${REVERB_PORT:-${SOKETI_PORT:-6001}}:6001"
-      - "${TERMINAL_PORT:-6002}:6002"
+      - "6002:6002"
     expose:
       - "${APP_PORT:-8000}"
       - "6001"
-      - "${TERMINAL_PORT:-6002}"
+      - "6002"
+    networks:
+      coolify:
+        # Realtime ran in the coolify-realtime container before 4.4; keep the name for existing proxy upstreams.
+        aliases:
+          - coolify-realtime
     healthcheck:
       test: curl --fail http://127.0.0.1:8080/api/health && curl --fail http://127.0.0.1:${PUSHER_BACKEND_PORT:-6001}/up || exit 1
       interval: 5s
diff --git a/docker-compose.windows.yml b/docker-compose.windows.yml
index 503b80dc6b..347495424f 100644
--- a/docker-compose.windows.yml
+++ b/docker-compose.windows.yml
@@ -52,11 +52,11 @@ services:
     ports:
       - "${APP_PORT:-8000}:8080"
       - "${REVERB_PORT:-${SOKETI_PORT:-6001}}:6001"
-      - "${TERMINAL_PORT:-6002}:6002"
+      - "6002:6002"
     expose:
       - "${APP_PORT:-8000}"
       - "6001"
-      - "${TERMINAL_PORT:-6002}"
+      - "6002"
     healthcheck:
       test: curl --fail http://localhost:8080/api/health && curl --fail http://localhost:${PUSHER_BACKEND_PORT:-6001}/up || exit 1
       interval: 5s
diff --git a/other/nightly/docker-compose.prod.yml b/other/nightly/docker-compose.prod.yml
index bb09c08e33..823c8c80e1 100644
--- a/other/nightly/docker-compose.prod.yml
+++ b/other/nightly/docker-compose.prod.yml
@@ -19,18 +19,22 @@ services:
       - PHP_FPM_PM_START_SERVERS=${PHP_FPM_PM_START_SERVERS:-1}
       - PHP_FPM_PM_MIN_SPARE_SERVERS=${PHP_FPM_PM_MIN_SPARE_SERVERS:-1}
       - PHP_FPM_PM_MAX_SPARE_SERVERS=${PHP_FPM_PM_MAX_SPARE_SERVERS:-10}
-      - PUSHER_PORT=${PUSHER_PORT:-6001}
       - PUSHER_BACKEND_PORT=${PUSHER_BACKEND_PORT:-6001}
     env_file:
       - /data/coolify/source/.env
     ports:
       - "${APP_PORT:-8000}:8080"
       - "${REVERB_PORT:-${SOKETI_PORT:-6001}}:6001"
-      - "${TERMINAL_PORT:-6002}:6002"
+      - "6002:6002"
     expose:
       - "${APP_PORT:-8000}"
       - "6001"
-      - "${TERMINAL_PORT:-6002}"
+      - "6002"
+    networks:
+      coolify:
+        # Realtime ran in the coolify-realtime container before 4.4; keep the name for existing proxy upstreams.
+        aliases:
+          - coolify-realtime
     healthcheck:
       test: curl --fail http://127.0.0.1:8080/api/health && curl --fail http://127.0.0.1:${PUSHER_BACKEND_PORT:-6001}/up || exit 1
       interval: 5s
diff --git a/other/nightly/docker-compose.windows.yml b/other/nightly/docker-compose.windows.yml
index 6abe677fc9..e185134466 100644
--- a/other/nightly/docker-compose.windows.yml
+++ b/other/nightly/docker-compose.windows.yml
@@ -51,11 +51,11 @@ services:
     ports:
       - "${APP_PORT:-8000}:8080"
       - "${REVERB_PORT:-${SOKETI_PORT:-6001}}:6001"
-      - "${TERMINAL_PORT:-6002}:6002"
+      - "6002:6002"
     expose:
       - "${APP_PORT:-8000}"
       - "6001"
-      - "${TERMINAL_PORT:-6002}"
+      - "6002"
     healthcheck:
       test: curl --fail http://localhost:8080/api/health && curl --fail http://localhost:${PUSHER_BACKEND_PORT:-6001}/up || exit 1
       interval: 5s
diff --git a/tests/Feature/ReverbAndTerminalPackagingTest.php b/tests/Feature/ReverbAndTerminalPackagingTest.php
index 752eedbcce..8b5fab4903 100644
--- a/tests/Feature/ReverbAndTerminalPackagingTest.php
+++ b/tests/Feature/ReverbAndTerminalPackagingTest.php
@@ -1,6 +1,9 @@
 <?php
 
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Request as RequestFacade;
 use Illuminate\Support\Str;
+use Symfony\Component\Yaml\Yaml;
 
 it('uses Reverb as the first-party broadcast server', function () {
     expect(file_get_contents(base_path('composer.json')))
@@ -117,8 +120,10 @@ it('runs Reverb and terminal websocket services inside the Coolify containers',
 it('removes the dedicated realtime service from bundled compose files', function (string $composeFile, bool $hasRuntimeEnvironment) {
     $composeContents = file_get_contents(base_path($composeFile));
 
+    // Production keeps "coolify-realtime" only as a network alias of the coolify container.
     expect($composeContents)
-        ->not->toContain('coolify-realtime')
+        ->not->toContain('container_name: coolify-realtime')
+        ->not->toContain('coolify-realtime:')
         ->not->toContain('soketi:')
         ->not->toContain('SOKETI_DEFAULT_APP_ID')
         ->toContain('6001')
@@ -263,6 +268,41 @@ it('stops publishing or preserving the obsolete realtime image', function () {
         ->not->toContain('| Realtime');
 });
 
+it('keeps 4.3.23 realtime setups working with the production compose files', function (string $composeFile) {
+    $coolify = Yaml::parseFile(base_path($composeFile))['services']['coolify'];
+
+    // The browser port comes only from .env (for example PUSHER_PORT=443 for Cloudflare Tunnel).
+    expect(collect($coolify['environment'])->filter(fn (string $entry) => Str::startsWith($entry, 'PUSHER_PORT')))->toBeEmpty()
+        ->and($coolify['networks']['coolify']['aliases'])->toContain('coolify-realtime')
+        ->and($coolify['ports'])->toContain('6002:6002')
+        ->and(implode("\n", [...$coolify['ports'], ...$coolify['expose']]))->not->toContain('TERMINAL_PORT');
+})->with([
+    'production compose' => ['docker-compose.prod.yml'],
+    'nightly production compose' => ['other/nightly/docker-compose.prod.yml'],
+]);
+
+it('keeps TERMINAL_PORT browser-only in the Windows compose files', function (string $composeFile) {
+    $coolify = Yaml::parseFile(base_path($composeFile))['services']['coolify'];
+
+    expect($coolify['ports'])->toContain('6002:6002')
+        ->and(implode("\n", [...$coolify['ports'], ...$coolify['expose']]))->not->toContain('TERMINAL_PORT');
+})->with([
+    'windows compose' => ['docker-compose.windows.yml'],
+    'nightly windows compose' => ['other/nightly/docker-compose.windows.yml'],
+]);
+
+it('resolves the browser websocket port like 4.3.23', function (string $pageUrl, ?string $pusherPort, ?string $expectedPort) {
+    config()->set('constants.pusher.port', $pusherPort);
+    RequestFacade::swap(Request::create($pageUrl));
+
+    expect(getRealtime())->toBe($expectedPort);
+})->with([
+    'https domain through the Coolify proxy' => ['https://coolify.example.com/', null, null],
+    'https domain with an empty PUSHER_PORT' => ['https://coolify.example.com/', '', null],
+    'direct IP and port access' => ['http://203.0.113.10:8000/', null, '6001'],
+    'Cloudflare Tunnel guide' => ['https://coolify.example.com/', '443', '443'],
+]);
+
 it('uses current Reverb and terminal names in development tooling', function () {
     expect(file_get_contents(base_path('scripts/dev-instances')))
         ->toContain('"REVERB" "TERMINAL"')