Refactored latest posts and with a correct sort. Uses dates on posts rather than file creation dates (unreliable).

.eleventy.js

@@ -9,11 +9,15 @@ module.exports = function(eleventyConfig) {
   eleventyConfig.addLayoutAlias("post", "layouts/post.njk");
 
   eleventyConfig.addFilter("readableDate", dateObj => {
-    return DateTime.fromJSDate(dateObj).toFormat("dd LLL yyyy");
+    return DateTime.fromJSDate(dateObj, {zone: 'utc'}).toFormat("dd LLL yyyy");
   });
 
   // Get the first `n` elements of a collection.
   eleventyConfig.addFilter("head", (array, n) => {
+    if( n < 0 ) {
+      return array.slice(n);
+    }
+
     return array.slice(0, n);
   });
 
@@ -24,8 +28,8 @@ module.exports = function(eleventyConfig) {
 
   // only content in the `posts/` directory
   eleventyConfig.addCollection("posts", function(collection) {
-    return collection.getAllSorted().filter(function(item) {
-      return item.inputPath.startsWith('./posts');
+    return collection.getFilteredByGlob("./posts/*").sort(function(a, b) {
+      return a.date - b.date;
     });
   });
 

archive.njk

@@ -3,10 +3,10 @@ layout: layouts/home.njk
 tags:
   - nav
 navtitle: Archive
-permalink: posts/index.html
+permalink: /posts/
 ---
 
-<h1>Blog post archive</h1>
+<h1>Archive</h1>
 
 {% set postslist = collections.posts %}
 {% include "postslist.njk" %}

index.njk

@@ -5,9 +5,9 @@ tags:
 navtitle: Home
 ---
 
-<h1>Latest 2 blog posts</h1>
+<h1>Latest 3 Posts</h1>
 
-{% set postslist = collections.posts | head(2) %}
+{% set postslist = collections.posts | head(-3) %}
 {% include "postslist.njk" %}
 
-<p>More posts can be found in <a href="/posts/">the blog archive</a>.</p>
+<p>More posts can be found in <a href="/posts/">the archive</a>.</p>

posts/firstpost.md

@@ -1,5 +1,6 @@
 ---
 title: This is my first post.
+date: 2018-05-01
 tags:
   - post
   - another-tag

posts/fourthpost.md

@@ -1,5 +1,6 @@
 ---
 title: This is my fourth post.
+date: 2018-09-30
 tags: second-tag
 layout: layouts/post.njk
 ---

posts/secondpost.md

@@ -1,5 +1,6 @@
 ---
 title: This is my second post.
+date: 2018-07-04
 tags:
   - post
   - number-2

posts/thirdpost.md

@@ -1,5 +1,6 @@
 ---
 title: This is my third post.
+date: 2018-08-24
 tags:
   - post
   - second-tag