Some snippets on how to use

article-playground.liquid

{% comment %}
  If you have questions regarding the blog/article list interface, see :
  https://gist.github.com/TeamDijon/15684d1bef3c4bb5ca9dfd8a9381a156
  
  As always, with collections/blogs/articles, mind the potential conflicts with pagination

  For the article handle source, I usually go with a "ricthext" setting using unordered list.
  From this, I can retrieve the data and store everything in an array before using it on the following snippets of code
{% endcomment %}

{% # Here, we render article cards from a list of article handles %}
{% for article_handle in article_handle_list %}
  {% liquid
    assign blog_handle = article_handle | split: '/' | first
    assign article_blog = blogs[blog_handle]
  %}
  {% render 'article-card', blog: article_blog, article: articles[article_handle]
{% endfor %}


{% # Here, we get a sorted list of recent posts from multiple blogs %}
{% liquid
  assign recent_post_list = ''
  for blog_handle in blog_handle_list
    assign associated_blog = blogs[blog_handle]

    if associated_blog == null
      continue
    endif

    assign blog_post_list = associated_blog.articles

    if recent_post_list == blank
      assign recent_post_list = blog_post_list
    else
      assign recent_post_list = recent_post_list | concat: blog_post_list
    endif
  endfor
  
  if recent_post_list != blank
    assign recent_post_list = recent_post_list | sort: 'published_at' | reverse
  endif
%}

{% for recent_post in recent_post_list %}
  {% assign associed_blog_handle = recent_post.handle | split: '/' | first %}
  {% render 'article-card', blog: blogs[associated_blog_handle], article: recent_post %}
{% endfor %}