Noob question: Dynamic sitemaps for Laravel SEO best practices?

Hey everyone, I'm new here and also quite new to the world of advanced SEO, especially when it comes to sitemaps. I've just launched my first Laravel application, and while I'm incredibly excited about it, I'm finding myself a bit overwhelmed with making sure it's properly indexed and ranks well. My main concern right now is getting my head around effective Laravel SEO, particularly with sitemaps. I understand the basic concept of sitemaps – they help search engines discover pages on your site. But my app has a lot of dynamic content: user-generated posts, new product listings, and a frequently updated blog. This means a static sitemap just won't cut it. I've seen mentions of 'Dynamic XML Sitemap for Laravel & All Websites' and the idea of an auto-updating sitemap, but I'm completely lost on how to implement this effectively for my specific needs, ensuring all my ever-changing content is always reflected. Initially, I thought about just manually generating a sitemap, but quickly realized that's totally unsustainable for a site with constantly changing content. So, I started looking into various Laravel sitemap packages. However, I've found them either overly complex to configure, or they don't seem truly 'auto-updating' for *all* the different dynamic content types I have, or the documentation just wasn't clear enough for a beginner like me on handling multiple content models efficiently. I'm also really confused about how to properly set the lastmod, changefreq, and priority tags. For example, how do you manage lastmod for content that users can update at any time versus brand new blog posts? And then there's the worry about performance: generating a huge, dynamic sitemap on the fly for a growing site sounds like it could potentially slow things down, which is the last thing I want for my new app. So, I'm really hoping some experienced folks here can shed some light on this for me. What's the most effective strategy to ensure a dynamic sitemap truly auto-updates for *every single new or updated piece of content* in a Laravel app without constant manual checks? How do experienced developers handle the lastmod tag for user-editable content versus new content in a dynamic sitemap, especially for optimal Laravel SEO? Are there specific techniques or packages to ensure that generating and serving a large dynamic sitemap doesn't degrade server performance or user experience? And finally, for someone new to advanced SEO and Laravel like myself, what are the absolute best practices for implementing a future-proof, auto-updating dynamic sitemap? Any guidance or shared experiences would be incredibly helpful. I'm a complete beginner on this specific topic, so even basic tips are welcome. Anyone faced this before?