“Read more” for {{ .Content }}

Found a way to do what I was looking for. For anyone that is the “same boat”, I found this on this site[0]:

{{ $parts := split .Content "<!-- readmore -->" }}
{{ $summary := index $parts 0 }}
{{ $summaryHTML := safeHTML $summary }}

{{ if eq $summaryHTML .Content }}
    {{ .Content }}
{{ else }}
    {{ $summaryHTML }}
    <a href="{{ .Permalink }}”>Read more...</a>
{{ end }}

[0] How to show the full post unless there’s a user defined summary in Hugo · Elliot Jackson