diff --git a/eleventy.config.cjs b/eleventy.config.cjs
index 164fa14..4b38bc2 100644
--- a/eleventy.config.cjs
+++ b/eleventy.config.cjs
@@ -8,4 +8,16 @@ module.exports = function(eleventyConfig){
 	}, {debug: true})
 
 	eleventyConfig.addPlugin(EleventyHtmlBasePlugin);
+
+	eleventyConfig.addFilter(
+		"debug",
+		(content) =>
+			`<pre>
+				${require("node:util").inspect(content)}
+			</pre>`
+	);
+
+	eleventyConfig.addDataExtension("yml, yaml",
+		contents => require('js-yaml').load(contents)
+	)
 }
diff --git a/package.json b/package.json
index 409f7c4..e7ce6c0 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,7 @@
   },
   "devDependencies": {
     "@11ty/eleventy": "^2.0.1",
-    "@picocss/pico": "^1.5.10"
+    "@picocss/pico": "^1.5.10",
+    "js-yaml": "^4.1.0"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ed2ca60..8dbdf43 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -11,6 +11,9 @@ devDependencies:
   '@picocss/pico':
     specifier: ^1.5.10
     version: 1.5.10
+  js-yaml:
+    specifier: ^4.1.0
+    version: 4.1.0
 
 packages:
 
@@ -798,6 +801,13 @@ packages:
       esprima: 4.0.1
     dev: true
 
+  /js-yaml@4.1.0:
+    resolution: {integrity: sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==}
+    hasBin: true
+    dependencies:
+      argparse: 2.0.1
+    dev: true
+
   /jstransformer@1.0.0:
     resolution: {integrity: sha512-C9YK3Rf8q6VAPDCCU9fnqo3mAfOH6vUGnMcP4AQAYIEpWtfGLpwOTmZ+igtdK5y+VvI2n3CyYSzy4Qh34eq24A==}
     dependencies: