Struggling with dynamic XML sitemaps for Laravel SEO, any tips?

Hey everyone, I'm currently neck-deep in building a new Laravel SaaS app and it's got a ton of dynamic content – we're talking user profiles, listings, blog posts, you name it. Getting our Laravel SEO right from the start is absolutely crucial, especially when it comes to ensuring proper indexing by search engines. The core problem we're wrestling with is generating a truly dynamic XML sitemap. We don't just need something we can run once; we need a solution that auto-updates seamlessly as content changes, scales effortlessly with growth, and is genuinely future-proof. Manual updates or even basic cron jobs just won't cut it for our rapidly evolving data, as content can literally change by the minute. We've certainly tried a few things already. We've looked at some existing Laravel sitemap packages out there, and we even attempted to roll our own solution using direct database queries and Storage::put() to write the XML files. The main issues we kept running into were either significant performance bottlenecks, especially with larger datasets where memory usage became a real concern and generation times got crazy, or the sheer complexity in managing individual updates for every single content change across different models. Plus, a lot of what we found lacked true "future-proofing" against new content types or potential URL structure changes down the road, which is a major headache we want to avoid. So, I'm really hoping someone here has cracked this nut. What are the absolute best practices for generating an auto-updating dynamic XML sitemap specifically in Laravel? How do you guys typically handle performance for sitemaps that might eventually grow to hundreds of thousands or even millions of URLs without bogging down your server? And are there any specific tools, packages, or architectural patterns you'd wholeheartedly recommend to ensure the sitemap is truly future-proof and low-maintenance for robust Laravel SEO? I'm looking for practical, real-world advice from anyone who's tackled this successfully. Help a brother out please...