Refactor app in to its own slice

slices/main/templates/feeds/rss.xml.builder

@@ -0,0 +1,35 @@
+xml.instruct! "xml-stylesheet", {href: "/assets/style.xslt", type: "text/xsl"}
+
+xml.channel do |channel|
+  channel.title "Daniel Nitsikopoulos"
+  channel.description "The personal blog of Daniel Nitsikopoulos, software engineer from Canberra, ACT"
+  channel.link "https://dnitza.com"
+  channel.name "dnitza.com"
+  channel.lastBuildDate Time.now.rfc2822
+  channel.pubDate Time.now.rfc2822
+  channel.ttl 1800
+
+  channel.alternate_feed do |item|
+    item.link "/feeds/rss"
+    item.title "Main feed (this feed)"
+    item.description "Containing longer text posts and bookmarks"
+  end
+
+  channel.alternate_feed do |item|
+    item.link "/feeds/statuses_rss"
+    item.title "Statuses / Microblog"
+    item.description "Only shorter posts and photo posts, usually also appearing on Mastodon"
+  end
+
+  posts.each do |post|
+    channel.item do |item|
+      item.title post.display_title
+      item.description do |desc|
+        desc.cdata! post.feed_content
+      end
+      item.link(post.permalink)
+      item.guid(post.slug, isPermaLink: true)
+      item.pubDate post.machine_published_at
+    end
+  end
+end