What are the migration paths between them?

I can only answer questions about sveltejs/kit or vercel/next.js.

The repository data provided is about sveltejs/kit (a Svelte-based framework) and vercel/next.js (a React-based framework). These are fundamentally different frameworks built on different JavaScript libraries, so there is no direct "migration path between them" in the traditional sense.

However, if you're asking about migration within sveltejs/kit, the documentation includes migration guides:

1. Sapper to SvelteKit migration — documented in [documentation/docs/60-appendix/40-migrating.md], which covers:

   • Import replacements (e.g., goto, prefetch → $app/navigation)
   • Store changes
   • Attribute changes (sapper:prefetch → data-sveltekit-preload-data)

2. SvelteKit 1 to SvelteKit 2 migration — documented in [documentation/docs/60-appendix/30-migrating-to-sveltekit-2.md], which covers:

   • Cookie path requirements [L25-L40]
   • Path resolution changes (resolvePath → resolveRoute) [L103-L119]
   • Relative vs. absolute paths [L85-L90]

If you're looking to migrate a Next.js app to SvelteKit or vice versa, that would require rewriting your application since they have different architectures, routing systems, and component models. Neither repository contains guidance for cross-framework migration.

FOLLOW_UPS:

• How do SvelteKit routes differ from Next.js routes?
• What's the process for upgrading SvelteKit 1 to 2?
• How does SvelteKit handle data loading compared to Next.js?