From 3ee58f4e179447a5ecb0de5161666225af71b045 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Fri, 10 Apr 2026 14:43:20 +0000
Subject: [PATCH] Add blog-specific RSS feed at /blog/feed

Creates a blogPosts collection filtered to posts/blog/ directory and an
Atom feed template at blog/feed with the correct Content-Type header,
so https://sijobling.com/blog/feed is a valid, auto-updating RSS feed.

https://claude.ai/code/session_01Rzdb6FadiMnfFgKrBBDGfe
---
 .eleventy.js  |  8 ++++++++
 _headers      |  3 +++
 blog/feed.njk | 29 +++++++++++++++++++++++++++++
 3 files changed, 40 insertions(+)
 create mode 100644 blog/feed.njk

diff --git a/.eleventy.js b/.eleventy.js
index 5597bec..6a92a3f 100644
--- a/.eleventy.js
+++ b/.eleventy.js
@@ -227,6 +227,14 @@ module.exports = function (eleventyConfig) {
       .sort((a, b) => a.date - b.date)
       .slice(-5);
   });
+  eleventyConfig.addCollection("blogPosts", function (collectionApi) {
+    return collectionApi.getFilteredByTag("posts").filter((post) => {
+      const inputPath = post.inputPath || "";
+      const normalized = inputPath.replace(/^[.\\/]*posts[\\/]/, "");
+      const directory = normalized.split(/[/\\]/)[0];
+      return directory === "blog";
+    });
+  });
   eleventyConfig.addCollection("tagList", require("./_11ty/getTagList"));
   // Copy migrated assets from src/assets to /assets in the built site.
   eleventyConfig.addPassthroughCopy({ "src/assets": "assets" });
diff --git a/_headers b/_headers
index 34ca8c1..82a0421 100644
--- a/_headers
+++ b/_headers
@@ -11,3 +11,6 @@
   cache-control: public,max-age=31536000,immutable
 /favicon.svg
   cache-control: public,max-age=3600
+
+/blog/feed
+  Content-Type: application/atom+xml; charset=UTF-8
diff --git a/blog/feed.njk b/blog/feed.njk
new file mode 100644
index 0000000..cc45ec0
--- /dev/null
+++ b/blog/feed.njk
@@ -0,0 +1,29 @@
+---
+permalink: blog/feed
+eleventyExcludeFromCollections: true
+---
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom">
+	<title>{{ metadata.title }} - Blog</title>
+	<subtitle>{{ metadata.feed.subtitle }}</subtitle>
+	{% set absoluteUrl %}{{ "/blog/feed" | url | absoluteUrl(metadata.url) }}{% endset %}
+	<link href="{{ absoluteUrl }}" rel="self"/>
+	<link href="{{ metadata.url }}/blog/"/>
+	<updated>{{ collections.blogPosts | rssLastUpdatedDate }}</updated>
+	<id>{{ metadata.url }}/blog/</id>
+	<author>
+		<name>{{ metadata.author.name }}</name>
+	</author>
+	{%- for post in collections.blogPosts %}
+	{% set absolutePostUrl %}{{ post.url | url | absoluteUrl(metadata.url) }}{% endset %}
+	<entry>
+		<title>{{ post.data.title }}</title>
+		<link href="{{ absolutePostUrl }}"/>
+		<updated>{{ post.date | rssDate }}</updated>
+		<id>{{ absolutePostUrl }}</id>
+		<content type="html">
+		  {{ post.templateContent | htmlToAbsoluteUrls(absolutePostUrl) }}
+		</content>
+	</entry>
+	{%- endfor %}
+</feed>