#get pages based on their secondary tag

Developer help
1

I have a page template which uses this section of code below, but I need to make a slight modification:

{{#get "pages" include="tags,authors,tiers" filter="tags:[{{post.tags}}]" limit="all"}}
          {{#foreach pages}}
            {{> resource-card}}
          {{/foreach}}
        {{/get}}

The current behavior is to fetch all pages sharing any tag with this page, then render post cards for each of those pages.

I want to make it so that post cards are rendered only for pages whose secondary tag matches the primary tag of this page.

I know that there’s a few ways to reference specific tags, like

{{primary_tag}}

for the primary tag and

{{tags.[1]}}

for the secondary tag.
But I’m having trouble putting this information together into a logical statement. I’m also not sure whether the logic should be applied in the #get filter or in the #foreach loop…

Could anyone give me a hint to push me in the right direction?