Vite has specific settings that need to be set in vite.config.ts and vitest.config.ts in order for it to work with Evolu. Those are:

export default defineConfig({
	worker: {
		format: "es",
	},
	optimizeDeps: {
		exclude: ["@evolu/react", "@sqlite.org/sqlite-wasm"],
		include: ["react-dom"],
	},
})

It would be great if this was included as part of the installation instructions!