{{ $lazysizes := resources.Get "js/vendor/lazysizes/lazysizes.min.js" -}}
{{ if eq (hugo.Environment) "development" -}}
  {{ $app := resources.Get "js/app.js" -}}
  {{ $js := slice $lazysizes $app | resources.Concat "main.js" -}}
  <script src="{{ $js.Permalink }}" defer></script>
{{ else -}}
  {{ $app := resources.Get "js/app.js" | minify -}}
  {{ $js := slice $lazysizes $app | resources.Concat "main.js" -}}
  {{ $secureJS := $js | resources.Fingerprint "sha512" -}}
  <script src="{{ $secureJS.Permalink }}" integrity="{{ $secureJS.Data.Integrity }}" crossorigin="anonymous" defer></script>
{{ end -}}