Initial build.

includes/class-output.php

@@ -0,0 +1,31 @@
+<?php
+/**
+ * @package CleverOgre
+ * @subpackage OgreSchema
+ * @version 0.1.0
+ * @since 0.1.0
+ */
+
+namespace OgreSchema;
+
+if (!defined('ABSPATH')) exit;
+
+class Output {
+    use Singleton;
+
+    public function __construct() {
+        add_action('wp_footer', [$this, 'render']);
+    }
+
+    // Add JSON to Footer
+    public function render() {
+        if (!Data::has_schema()) return;
+        printf(
+            '<script type="application/ld+json">%s</script>',
+            json_encode(Data::get_schema()) // NOTE: esc_js()?
+        );
+    }
+
+}
+
+Output::instance();