Custom single partial that allows hiding UI

single.html

{{ define "header" }}
   {{/* We can override any block in the baseof file be defining it in the template */}}
   {{ if not .Params.barePage }}
    {{ partial "page-header.html" . }}
   {{ end }}
{{ end }}

{{ define "main" }}
  {{ $section := .Site.GetPage "section" .Section }}
  <article class="flex-l flex-wrap justify-between mw8 center ph3">
    {{ if not .Params.barePage }}
      <header class="mt4 w-100">
        <aside class="instapaper_ignoref b helvetica tracked">
            {{/*
            CurrentSection allows us to use the section title instead of inferring from the folder.
            https://gohugo.io/variables/page/#section-variables-and-methods
            */}}
          {{with .CurrentSection.Title }}{{. | upper }}{{end}}
        </aside>
        {{ partial "social-share.html" . }}
        <h1 class="f1 athelas mt3 mb1">
          {{- .Title -}}
        </h1>
        {{ with .Params.author }}
        <p class="tracked">
            By <strong>
            {{ if reflect.IsSlice . }}
                {{ delimit . ", " | markdownify }}
            {{else}}
                {{ . | markdownify }}
            {{ end }}
            </strong>
        </p>
        {{ end }}
        {{/* Hugo uses Go's date formatting is set by example. Here are two formats */}}
        <time class="f6 mv4 dib tracked" {{ printf `datetime="%s"` (.Date.Format "2006-01-02T15:04:05Z07:00") | safeHTMLAttr }}>
          {{- .Date.Format "January 2, 2006" -}}
        </time>

        {{/*
            Show "reading time" and "word count" but only if one of the following are true:
            1) A global config `params` value is set `show_reading_time = true`
            2) A section front matter value is set `show_reading_time = true`
            3) A page front matter value is set `show_reading_time = true`
          */}}
        {{ if (or (eq (.Param "show_reading_time") true) (eq $section.Params.show_reading_time true) )}}
          <span class="f6 mv4 dib tracked"> - {{ .ReadingTime}} minutes read</span>
          <span class="f6 mv4 dib tracked"> - {{ .WordCount}} words</span>
        {{ end }}
      </header>
    {{ end }}
    <div class="nested-copy-line-height lh-copy {{ $.Param "post_content_classes"  | default "serif"}} f4 nested-links nested-img mid-gray pr4-l">
      {{- .Content -}}
      {{- partial "tags.html" . -}}
      {{ if not .Params.barePage }}
        <div class="mt6 instapaper_ignoref">
        {{ if .Site.DisqusShortname }}
          {{ template "_internal/disqus.html" . }}
        {{ end }}
        {{ if .Site.Params.commentoEnable }}
          {{- partial "commento.html" . -}}
        {{ end }}
      {{ end }}
      </div>
    </div>

    {{ if not .Params.barePage }}
      <aside class="w-30-l mt6-l">
        {{- partial "menu-contextual.html" . -}}
      </aside>
    {{ end }}

  </article>
{{ end }}