diff --git a/phpstan.neon b/phpstan.neon
index fafcc146..c4c667b1 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -16,6 +16,7 @@ parameters:
     ignoreErrors:
         -
             identifier: missingType.iterableValue
+        - '#FFI#'
         - '#Return type(.*?) of method Stancl\\Tenancy\\Database\\Models\\Tenant\:\:newCollection\(\) should be compatible with return type#'
         - '#Method Stancl\\Tenancy\\Database\\Models\\Tenant\:\:newCollection\(\) should return#'
         - '#Cannot access offset (.*?) on Illuminate\\Contracts\\Foundation\\Application#'
diff --git a/src/Concerns/ParallelCommand.php b/src/Concerns/ParallelCommand.php
index 1da3e7d9..84bc0658 100644
--- a/src/Concerns/ParallelCommand.php
+++ b/src/Concerns/ParallelCommand.php
@@ -80,8 +80,12 @@ trait ParallelCommand
         // We use the logical core count as it should work best for I/O bound code
         return match (PHP_OS_FAMILY) {
             'Windows' => (int) getenv('NUMBER_OF_PROCESSORS'),
-            'Linux' => substr_count(file_get_contents('/proc/cpuinfo'), 'processor'),
+            'Linux' => substr_count(
+                file_get_contents('/proc/cpuinfo') ?: throw new Exception('Could not open /proc/cpuinfo for core count detection, please specify -p manually.'),
+                'processor',
+            ),
             'Darwin', 'BSD' => $this->sysctlGetLogicalCoreCount(PHP_OS_FAMILY === 'Darwin'),
+            default => throw new Exception('Core count detection not implemented for ' . PHP_OS_FAMILY . ', please specify -p manually.'),
         };
     }
 
@@ -111,8 +115,8 @@ trait ParallelCommand
         }
 
         if ($processes > 1 && ! function_exists('pcntl_fork')) {
-            exit(1);
             $this->components->error('The pcntl extension is required for parallel migrations to work.');
+            exit(1);
         }
 
         return $processes;
@@ -143,7 +147,7 @@ trait ParallelCommand
         $success = true;
         $pids = [];
 
-        if (count($args) < $processes) {
+        if ($args !== null && count($args) < $processes) {
             $processes = count($args);
         }
 
diff --git a/src/Overrides/TenancyUrlGenerator.php b/src/Overrides/TenancyUrlGenerator.php
index af307021..7c0a7879 100644
--- a/src/Overrides/TenancyUrlGenerator.php
+++ b/src/Overrides/TenancyUrlGenerator.php
@@ -4,8 +4,10 @@ declare(strict_types=1);
 
 namespace Stancl\Tenancy\Overrides;
 
+use BackedEnum;
 use Illuminate\Routing\UrlGenerator;
 use Illuminate\Support\Arr;
+use InvalidArgumentException;
 use Stancl\Tenancy\Resolvers\PathTenantResolver;
 
 /**
@@ -51,7 +53,11 @@ class TenancyUrlGenerator extends UrlGenerator
      */
     public function route($name, $parameters = [], $absolute = true)
     {
-        [$name, $parameters] = $this->prepareRouteInputs($name, Arr::wrap($parameters));
+        if ($name instanceof BackedEnum && ! is_string($name = $name->value)) { // @phpstan-ignore function.impossibleType
+            throw new InvalidArgumentException('Attribute [name] expects a string backed enum.');
+        }
+
+        [$name, $parameters] = $this->prepareRouteInputs($name, Arr::wrap($parameters)); // @phpstan-ignore argument.type
 
         return parent::route($name, $parameters, $absolute);
     }
@@ -62,7 +68,11 @@ class TenancyUrlGenerator extends UrlGenerator
      */
     public function temporarySignedRoute($name, $expiration, $parameters = [], $absolute = true)
     {
-        [$name, $parameters] = $this->prepareRouteInputs($name, Arr::wrap($parameters));
+        if ($name instanceof BackedEnum && ! is_string($name = $name->value)) { // @phpstan-ignore function.impossibleType
+            throw new InvalidArgumentException('Attribute [name] expects a string backed enum.');
+        }
+
+        [$name, $parameters] = $this->prepareRouteInputs($name, Arr::wrap($parameters)); // @phpstan-ignore argument.type
 
         return parent::temporarySignedRoute($name, $expiration, $parameters, $absolute);
     }