docs(core): add more content to motivation page

content/docs/core/motivation.mdx

@@ -4,12 +4,20 @@ description: The reason behind Stein's creation.
 icon: MessageCircleQuestion
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-Stein was created to fill a niche in the Solid.js community. We aim to create a framework that simplifies the initial project setup and provides a rich experience for a Solid.js SPA.
+Stein was created to fill a niche in the SolidJS community. We aim to create a framework that simplifies the initial project setup and provides a rich experience for a SolidJS SPA.
 SolidStart is a great choice if you wish to use SSR, but if you prefer using an SPA, Stein is the right choice for you.
 
-## Cards
+## What we're trying to build
+- A solid foundation for your SolidJS SPA
+- Improved project scaffolding and setup using the CLI
+- Modular plugin system with plug and play experience (inspired by Nuxt)
 
-<Cards>
-  <Card title="Learn more about Next.js" href="https://nextjs.org/docs" />
-  <Card title="Learn more about Fumadocs" href="https://fumadocs.vercel.app" />
-</Cards>
+As we do not want to reinvent the wheel, Stein is a thin layer built on top of Vite to provide a better developer experience when building SolidJS SPAs.
+We do not change the SolidJS fundamentals, so vendor lock-in is not an issue. If you wish to replace Stein with plain Vite, you are free to do so (but we hope you won't).
+
+## Vision for the future
+- Unique plugins that integrate with minimal/no extra setup (Devtools, API Routes, ...)
+- Rich plugin ecosystem built by the community
+- and more... (you can help us build it!)
+
+This vision is not set in stone, and we are open to suggestions and feedback from the community. We are building a framework that we want to use ourselves, and we hope you will enjoy using it as well.