diff --git a/app/Providers/ConcurrencyServiceProvider.php b/app/Providers/ConcurrencyServiceProvider.php
deleted file mode 100644
index 7fe1c83a4..000000000
--- a/app/Providers/ConcurrencyServiceProvider.php
+++ /dev/null
@@ -1,31 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace App\Providers;
-
-use App\Services\Concurrency\TimeoutAwareProcessDriver;
-use Illuminate\Concurrency\ConcurrencyManager;
-use Illuminate\Process\Factory as ProcessFactory;
-use Illuminate\Support\ServiceProvider;
-
-class ConcurrencyServiceProvider extends ServiceProvider
-{
-    /**
-     * Register any application services.
-     */
-    public function register(): void
-    {
-        $this->app->afterResolving(ConcurrencyManager::class, function (ConcurrencyManager $manager): void {
-            $manager->extend('process', function (): TimeoutAwareProcessDriver {
-                $configuredTimeout = config('nntmux.concurrency_timeout');
-                $timeout = (int) ($configuredTimeout ?? config('nntmux.multiprocessing_max_child_time', 1800));
-
-                return new TimeoutAwareProcessDriver(
-                    app(ProcessFactory::class),
-                    $timeout
-                );
-            });
-        });
-    }
-}
diff --git a/app/Services/Concurrency/TimeoutAwareProcessDriver.php b/app/Services/Concurrency/TimeoutAwareProcessDriver.php
deleted file mode 100644
index 7b8984248..000000000
--- a/app/Services/Concurrency/TimeoutAwareProcessDriver.php
+++ /dev/null
@@ -1,72 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace App\Services\Concurrency;
-
-use Closure;
-use Exception;
-use Illuminate\Concurrency\ProcessDriver;
-use Illuminate\Console\Application;
-use Illuminate\Process\Factory as ProcessFactory;
-use Illuminate\Process\Pool;
-use Illuminate\Support\Arr;
-use Laravel\SerializableClosure\SerializableClosure;
-
-class TimeoutAwareProcessDriver extends ProcessDriver
-{
-    public function __construct(
-        ProcessFactory $processFactory,
-        protected int $timeout
-    ) {
-        parent::__construct($processFactory);
-    }
-
-    /**
-     * Run the given tasks concurrently and return an array containing the results.
-     *
-     * @throws \Throwable
-     */
-    public function run(Closure|array $tasks): array
-    {
-        $command = Application::formatCommandString('invoke-serialized-closure');
-
-        $results = $this->processFactory->pool(function (Pool $pool) use ($tasks, $command) {
-            foreach (Arr::wrap($tasks) as $key => $task) {
-                $pool->as((string) $key)
-                    ->timeout($this->timeout)
-                    ->path(base_path())
-                    ->env([
-                        'LARAVEL_INVOKABLE_CLOSURE' => base64_encode(
-                            serialize(new SerializableClosure($task))
-                        ),
-                    ])
-                    ->command($command);
-            }
-        })->start()->wait();
-
-        return $results->collect()->mapWithKeys(function ($result, $key) {
-            if ($result->failed()) {
-                throw new Exception('Concurrent process failed with exit code ['.$result->exitCode().']. Message: '.$result->errorOutput());
-            }
-
-            $output = $result->output();
-
-            if (($pos = strpos($output, "\x1f\x8b")) !== false) {
-                $output = substr($output, 0, $pos);
-            }
-
-            $decodedResult = json_decode($output, true);
-
-            if (! $decodedResult['successful']) {
-                throw new $decodedResult['exception'](
-                    ...(! empty(array_filter($decodedResult['parameters']))
-                        ? $decodedResult['parameters']
-                        : [$decodedResult['message']])
-                );
-            }
-
-            return [$key => unserialize($decodedResult['result'])];
-        })->all();
-    }
-}
diff --git a/app/Services/Runners/BaseRunner.php b/app/Services/Runners/BaseRunner.php
index b89c9f21a..ff52b61dd 100644
--- a/app/Services/Runners/BaseRunner.php
+++ b/app/Services/Runners/BaseRunner.php
@@ -11,6 +11,16 @@ abstract class BaseRunner
 {
     public function __construct() {}
 
+    /**
+     * Resolve the configured timeout (seconds) for Laravel's Concurrency::run() calls.
+     */
+    protected function concurrencyTimeout(): int
+    {
+        $configured = config('nntmux.concurrency_timeout');
+
+        return (int) ($configured ?? config('nntmux.multiprocessing_max_child_time', 1800));
+    }
+
     protected function buildDnrCommand(string $args): string
     {
         // Convert legacy command arguments to new artisan commands
diff --git a/app/Services/Runners/PostProcessRunner.php b/app/Services/Runners/PostProcessRunner.php
index 2974c3fb3..d14eaeeda 100644
--- a/app/Services/Runners/PostProcessRunner.php
+++ b/app/Services/Runners/PostProcessRunner.php
@@ -71,7 +71,7 @@ class PostProcessRunner extends BaseRunner
             }
 
             try {
-                $results = Concurrency::run($tasks);
+                $results = Concurrency::run($tasks, $this->concurrencyTimeout());
 
                 foreach ($results as $taskIdx => $output) {
                     echo $output;
@@ -267,7 +267,7 @@ class PostProcessRunner extends BaseRunner
             }
 
             try {
-                $results = Concurrency::run($tasks);
+                $results = Concurrency::run($tasks, $this->concurrencyTimeout());
 
                 foreach ($results as $taskIdx => $output) {
                     echo $output;
diff --git a/app/Services/Runners/ReleasesRunner.php b/app/Services/Runners/ReleasesRunner.php
index 99044d2b9..8395d4c65 100644
--- a/app/Services/Runners/ReleasesRunner.php
+++ b/app/Services/Runners/ReleasesRunner.php
@@ -62,7 +62,7 @@ class ReleasesRunner extends BaseRunner
             }
 
             try {
-                $results = Concurrency::run($tasks);
+                $results = Concurrency::run($tasks, $this->concurrencyTimeout());
 
                 foreach ($results as $groupId => $output) {
                     echo $output;
@@ -111,7 +111,7 @@ class ReleasesRunner extends BaseRunner
             }
 
             try {
-                $results = Concurrency::run($tasks);
+                $results = Concurrency::run($tasks, $this->concurrencyTimeout());
 
                 foreach ($results as $groupId => $output) {
                     echo $output;
@@ -184,7 +184,7 @@ class ReleasesRunner extends BaseRunner
             }
 
             try {
-                $results = Concurrency::run($tasks);
+                $results = Concurrency::run($tasks, $this->concurrencyTimeout());
 
                 foreach ($results as $taskIdx => $output) {
                     echo $output;
diff --git a/bootstrap/providers.php b/bootstrap/providers.php
index 83dd49fad..39a68f6cc 100644
--- a/bootstrap/providers.php
+++ b/bootstrap/providers.php
@@ -3,7 +3,6 @@
 use App\Providers\AdditionalProcessingServiceProvider;
 use App\Providers\AppServiceProvider;
 use App\Providers\CategorizationServiceProvider;
-use App\Providers\ConcurrencyServiceProvider;
 use App\Providers\ForumServiceProvider;
 use App\Providers\HorizonServiceProvider;
 use App\Providers\ProcessingServiceProvider;
@@ -15,7 +14,6 @@ return [
     AdditionalProcessingServiceProvider::class,
     AppServiceProvider::class,
     CategorizationServiceProvider::class,
-    ConcurrencyServiceProvider::class,
     ForumServiceProvider::class,
     HorizonServiceProvider::class,
     ProcessingServiceProvider::class,
diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index 0425efdba..3f64862bd 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -786,17 +786,6 @@ parameters:
 			count: 1
 			path: app/Services/Categorization/CategorizationService.php
 
-		-
-			message: '#^Method App\\Services\\Concurrency\\TimeoutAwareProcessDriver\:\:run\(\) has parameter \$tasks with no value type specified in iterable type array\.$#'
-			identifier: missingType.iterableValue
-			count: 1
-			path: app/Services/Concurrency/TimeoutAwareProcessDriver.php
-
-		-
-			message: '#^Method App\\Services\\Concurrency\\TimeoutAwareProcessDriver\:\:run\(\) return type has no value type specified in iterable type array\.$#'
-			identifier: missingType.iterableValue
-			count: 1
-			path: app/Services/Concurrency/TimeoutAwareProcessDriver.php
 
 		-
 			message: '#^Strict comparison using \!\=\= between non\-empty\-array\<mixed, mixed\> and array\{\} will always evaluate to true\.$#'