Would it be possible to provide a mechanism for writing templates in JSX rather than svelte? I guess it would be a welcome addition and could potentially address the barrier to entry for people coming from a react background.
I'm not @Rich-Harris but I'm guessing this is a no. Sapper uses svelte because svelte provides all the hot reloading, code splitting, compilation tools for free. To support jsx there'd need to be a wrapper that provided the same compiler interface as svelte to jsx components.
I'm think sapper is (purposely) coupled very heavily to svelte.
Yeah, Sapper is, by its very nature, Next.js but for Svelte. If you want Next.js but for Svelte but for React, just use Next.js 😝
I will add that svelte is stupidly easy to learn.
Closing for the reasons outlined above — this would defeat the object of Sapper
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I will add that svelte is stupidly easy to learn.