Using Bun functions in server functions

// s3.ts
import { randomUUIDv7, s3 } from 'bun'

function getPresignedUploadURL(file: File): string {
  const fileId = randomUUIDv7()

  const uploadUrl = s3.presign(fileId, {
    method: 'PUT',
    expiresIn: 3600,
    type: file.type,
    acl: 'public-read',
  })

  return uploadUrl
}

import { createServerFn } from '@tanstack/react-start'
import { z } from 'zod'
import { getPresignedUploadURL } from '@/lib/s3'

const getUploadURL = createServerFn({ method: 'POST' })
  .validator(uploadCretationSchema)
  .handler(({ data }) => {
    console.log('handler', data.title)
    return getPresignedUploadURL(data.image)
  })

function RouteComponent() {

  const getURL = useServerFn(getUploadURL)

  const form = useForm({
    onSubmit: async ({ value }: { value: UploadCreationSchema }) => {
      const uploadURL = await getURL({ data: value })

      await fetch(uploadURL, {
        method: 'PUT',
        body: value.image,
        headers: {
          'Content-Type': 'image/jpeg',
        },
      })
    },
//...

Error when evaluating SSR module /Users/......../src/routes/mypage/creations/submit.tsx?tsr-split=component&tsr-directive-use-server=: Cannot find module 'bun' imported from '/Users/........../src/lib/s3.ts'