Svelte without SvelteKit probably won't be supported - it's a question of when

[dev-guy]

For example, Skeleton has dropped support for code that isn’t running in SvelteKit and they speculate that Svelte will do the same. skeletonlabs/skeleton#721

The end of support for Svelte without SvelteKit seems to be coming soon. Our small community which includes Chrome extensions and some Electron-based apps will be on our own.

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Here is a summary of the issue with Skeleton but other libraries like Carbon Components are facing similar challenges.

I don’t think this is an issue with Skeleton but is instead a dependency of Svelte 3.59 on SvelteKit which I’m not using (I’m using LiveSvelte with Phoenix). For example, if you try to use the v 1.6 Accordion component with Svelte 3.59, you will get the error described in sveltejs/svelte#6584

Uncaught (in promise) TypeError: Cannot read property '$$' of null

If there is something Skeleton-specific about this issue, it’s that Skeleton 1.6 should probably declare a dependency on ~3.58 instead of ^3.58 because this issue didn’t, for me, appear until Skeleton 1.6 was released. But perhaps the minority of non-SvelteKit users should just add that on their own, which I do.

[dev-guy]

I am using Skeleton 1.9 and Svelte 4 with no issues. It doesn't resolve the issue that Svelte 5 is likely to only work with SvelteKit but we can only wait and see.