Add the templates for the feed and the episode file class

app/src/Domain/Entity/Episode/File.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace Slovocast\Domain\Entity\Episode;
+
+/**
+ * Represents the file for the episode itself.
+ */
+class File
+{
+    public function __construct(
+        private string $url,
+        private int $length,
+        private string $type
+    ) { }
+
+    public function getUrl(): string
+    {
+        return $this->url;
+    }
+
+    public function getLength(): int
+    {
+        return $this->length;
+    }
+
+    public function getType(): string
+    {
+        return $this->type;
+    }
+}

app/templates/feed/skeleton.xml.twig

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<rss version="2.0"
+     xmlns:content="http://purl.org/rss/1.0/modules/content/"
+     xmlns:wfw="http://wellformedweb.org/CommentAPI/"
+     xmlns:dc="http://purl.org/dc/elements/1.1/"
+     xmlns:atom="http://www.w3.org/2005/Atom"
+     xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd"
+     xmlns:googleplay="http://www.google.com/schemas/play-podcasts/1.0"
+     xmlns:spotify="http://www.spotify.com/ns/rss"
+     xmlns:media="http://search.yahoo.com/mrss/">
+    
+    <channel>
+        {% block channel %}{% endblock %}
+        {% block image %}{% endblock %}
+
+        {# Render each episoe in here #}
+        {% block episodes %}{% endblock %}
+    </channel>
+
+</rss>