Allow embedding tweets

_plugins/embed_tweets.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+class TweetEmbedGenerator < Jekyll::Generator
+  def generate(site)
+    return if !site.config["embed_tweets"]
+
+    all_notes = site.collections['notes'].docs
+    all_pages = site.pages
+    all_docs = all_notes + all_pages
+
+    all_docs.each do |current_note|
+      current_note.content.gsub!(
+        /^https?:\/\/twitter\.com\/(?:#!\/)?(\w+)\/status(es)?\/(\d+)$/i,
+        <<~HTML
+          <blockquote class="twitter-tweet">
+           This tweet could not be embedded. <a href="#{'\0'}">View it on Twitter instead.</a>
+          </blockquote>
+          <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>
+        HTML
+      )
+    end
+  end
+end