This is a quick snippet to embed fathom into a nuxt3 site.

fathom.client.js

/**
 * Add this as plugins/fathom.client.js and 
 * you are good to go - nothing else tod o.
 */

import * as fathom from 'fathom-client'

export default defineNuxtPlugin(nuxtApp => {
  fathom.load('YOUR-SITE-ID', {
    spa: 'history'
  })

  nuxtApp.provide('fathom', fathom)

  addRouteMiddleware('fathom', () => {
    fathom.trackPageview()
  }, { global: true })
})