Able to add scheduled backups through the UI

app/Jobs/BackupDatabaseJob.php

@@ -11,6 +11,7 @@ use Illuminate\Bus\Queueable;
 use Illuminate\Contracts\Queue\ShouldQueue;
 use Illuminate\Foundation\Bus\Dispatchable;
 use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Queue\Middleware\WithoutOverlapping;
 use Illuminate\Queue\SerializesModels;
 use Throwable;
 
@@ -35,6 +36,16 @@ class BackupDatabaseJob implements ShouldQueue
         $this->status = $this->database->status;
     }
 
+    public function middleware(): array
+    {
+        return [new WithoutOverlapping($this->backup->id)];
+    }
+
+    public function uniqueId(): int
+    {
+        return $this->backup->id;
+    }
+
     public function handle()
     {
         if ($this->status !== 'running') {