diff --git a/.sass-cache/02489c73d862e060640389629d6692bb14c5a48b/_layout.scssc b/.sass-cache/02489c73d862e060640389629d6692bb14c5a48b/_layout.scssc
index 2abf82f..da42314 100644
Binary files a/.sass-cache/02489c73d862e060640389629d6692bb14c5a48b/_layout.scssc and b/.sass-cache/02489c73d862e060640389629d6692bb14c5a48b/_layout.scssc differ
diff --git a/404.html b/404.html
new file mode 100644
index 0000000..be50d1b
--- /dev/null
+++ b/404.html
@@ -0,0 +1,18 @@
+---
+layout: main
+permalink: /404.html
+---
+<h1>404 - page not found</h1>
+
+<p>
+If you didn't come on purpose I apologise, but the page you are searching doesn't exist.
+If you came on purpose enjoy this minimal <code>gif</code> of a dancing Rick Astley.
+</p>
+
+<p>
+<img class="block-center" src="./astley.gif" alt="Rick Astley gif">
+</p>
+
+<p>
+Thanks to <a href="https://github.com/Giorgio-Croci">Giorgio Croci
+</a> for the <code>gif</code>!</p>
diff --git a/404.md b/404.md
deleted file mode 100644
index ad8c0f9..0000000
--- a/404.md
+++ /dev/null
@@ -1,22 +0,0 @@
----
-layout: main
-permalink: /404.html
----
-
-# 404 - page not found
-
-If you didn't come on purpose I apologise, but the page you are searching doesn't exist.
-But, if you came on purpose, enjoy a flat Rick Astley gif dancing.
-
-![Rick gif](/astley.gif)
-
-<style>
-    img{
-        display: inline-block
-    }
-    main{
-        text-align: center
-    }
-</style>
-
-Thanks [Giorgio Croci!](https://github.com/Giorgio-Croci)
diff --git a/_sass/_layout.scss b/_sass/_layout.scss
index eb39070..eab578d 100644
--- a/_sass/_layout.scss
+++ b/_sass/_layout.scss
@@ -117,3 +117,9 @@ a.icon i.fa {
     display: table-cell;
     vertical-align: middle;
 }
+
+/* Utility class for centering block elements */
+.block-center {
+  display: block;
+  margin: auto;
+}
diff --git a/_site/404.html b/_site/404.html
index 944da26..5b89b21 100644
--- a/_site/404.html
+++ b/_site/404.html
@@ -12,8 +12,8 @@
   <link rel="stylesheet" href="/css/main.css">
   <link href='https://fonts.googleapis.com/css?family=Hammersmith+One' rel='stylesheet' type='text/css'>
   <link href="https://fonts.googleapis.com/css?family=Source+Code+Pro" rel="stylesheet"> 
-  <link rel="canonical" href="http://localhost:4000/404.html">
-  <link rel="alternate" type="application/rss+xml" title="maggioni.xyz" href="http://localhost:4000/feed.xml">
+  <link rel="canonical" href="http://praticamentetilde.github.io/404.html">
+  <link rel="alternate" type="application/rss+xml" title="maggioni.xyz" href="http://praticamentetilde.github.io/feed.xml">
   <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
   <script src="https://rawgit.com/snaptortoise/konami-js/master/konami.js"></script>
   <!-- Favicon -->
@@ -90,23 +90,20 @@
 
         </header>
         <main class="container">
-        <h1 id="404---page-not-found">404 - page not found</h1>
+        <h1>404 - page not found</h1>
 
-<p>If you didn’t come on purpose I apologise, but the page you are searching doesn’t exist.
-But, if you came on purpose, enjoy a flat Rick Astley gif dancing.</p>
+<p>
+If you didn't come on purpose I apologise, but the page you are searching doesn't exist.
+If you came on purpose enjoy this minimal <code>gif</code> of a dancing Rick Astley.
+</p>
 
-<p><img src="/astley.gif" alt="Rick gif" /></p>
+<p>
+<img class="block-center" src="./astley.gif" alt="Rick Astley gif">
+</p>
 
-<style>
-    img{
-        display: inline-block
-    }
-    main{
-        text-align: center
-    }
-</style>
-
-<p>Thanks <a href="https://github.com/Giorgio-Croci">Giorgio Croci!</a></p>
+<p>
+Thanks to <a href="https://github.com/Giorgio-Croci">Giorgio Croci
+</a> for the <code>gif</code>!</p>
 
         </main>
         <footer class="site-footer">
diff --git a/_site/blog/index.html b/_site/blog/index.html
index 00a47ce..dae7e92 100644
--- a/_site/blog/index.html
+++ b/_site/blog/index.html
@@ -12,8 +12,8 @@
   <link rel="stylesheet" href="/css/main.css">
   <link href='https://fonts.googleapis.com/css?family=Hammersmith+One' rel='stylesheet' type='text/css'>
   <link href="https://fonts.googleapis.com/css?family=Source+Code+Pro" rel="stylesheet"> 
-  <link rel="canonical" href="http://localhost:4000/blog/">
-  <link rel="alternate" type="application/rss+xml" title="maggioni.xyz" href="http://localhost:4000/feed.xml">
+  <link rel="canonical" href="http://praticamentetilde.github.io/blog/">
+  <link rel="alternate" type="application/rss+xml" title="maggioni.xyz" href="http://praticamentetilde.github.io/feed.xml">
   <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
   <script src="https://rawgit.com/snaptortoise/konami-js/master/konami.js"></script>
   <!-- Favicon -->
diff --git a/_site/css/main.css b/_site/css/main.css
index 0b551a7..ac40523 100644
--- a/_site/css/main.css
+++ b/_site/css/main.css
@@ -233,6 +233,11 @@ a.icon i.fa {
   display: table-cell;
   vertical-align: middle; }
 
+/* Utility class for centering block elements */
+.block-center {
+  display: block;
+  margin: auto; }
+
 /**
  * Syntax highlighting styles
  */
diff --git a/_site/feed.xml b/_site/feed.xml
index eb655d4..a4c246c 100644
--- a/_site/feed.xml
+++ b/_site/feed.xml
@@ -4,10 +4,10 @@
     <title>maggioni.xyz</title>
     <description>Eat polenta and do not counter-aim!
 </description>
-    <link>http://localhost:4000/</link>
-    <atom:link href="http://localhost:4000/feed.xml" rel="self" type="application/rss+xml"/>
-    <pubDate>Tue, 23 Oct 2018 17:00:52 +0200</pubDate>
-    <lastBuildDate>Tue, 23 Oct 2018 17:00:52 +0200</lastBuildDate>
+    <link>http://praticamentetilde.github.io/</link>
+    <atom:link href="http://praticamentetilde.github.io/feed.xml" rel="self" type="application/rss+xml"/>
+    <pubDate>Tue, 23 Oct 2018 17:16:39 +0200</pubDate>
+    <lastBuildDate>Tue, 23 Oct 2018 17:16:39 +0200</lastBuildDate>
     <generator>Jekyll v3.8.4</generator>
     
       <item>
@@ -80,8 +80,8 @@ done&lt;/span&gt;
 &lt;p&gt;If you want even more security, you can rename this script to &lt;code class=&quot;highlighter-rouge&quot;&gt;/bin/rm&lt;/code&gt; and move the original one in some other place, getting rid of all the aliases. I prefer the solution above because it’s tidier: you haven’t to move anything. In fact, this could be just an AUR package…&lt;/p&gt;
 </description>
         <pubDate>Thu, 28 Jul 2016 16:00:00 +0200</pubDate>
-        <link>http://localhost:4000/linux/2016/07/28/how-to-rickroll-people-launching-rm-rf-on-your-system.html</link>
-        <guid isPermaLink="true">http://localhost:4000/linux/2016/07/28/how-to-rickroll-people-launching-rm-rf-on-your-system.html</guid>
+        <link>http://praticamentetilde.github.io/linux/2016/07/28/how-to-rickroll-people-launching-rm-rf-on-your-system.html</link>
+        <guid isPermaLink="true">http://praticamentetilde.github.io/linux/2016/07/28/how-to-rickroll-people-launching-rm-rf-on-your-system.html</guid>
         
         
         <category>linux</category>
@@ -122,8 +122,8 @@ done&lt;/span&gt;
 &lt;p&gt;I’ve not installed Gentoo in dual boot because I didn’t figured out how to switch my bluetooth dongle in HID mode yet, so I can’t select the OS with &lt;code class=&quot;highlighter-rouge&quot;&gt;rEFInd&lt;/code&gt;. Hope this rambling was, if not useful, at least entertaining!&lt;/p&gt;
 </description>
         <pubDate>Tue, 12 Jul 2016 13:00:00 +0200</pubDate>
-        <link>http://localhost:4000/linux/2016/07/12/installing-gentoo-on-a-thinkpad-x60s.html</link>
-        <guid isPermaLink="true">http://localhost:4000/linux/2016/07/12/installing-gentoo-on-a-thinkpad-x60s.html</guid>
+        <link>http://praticamentetilde.github.io/linux/2016/07/12/installing-gentoo-on-a-thinkpad-x60s.html</link>
+        <guid isPermaLink="true">http://praticamentetilde.github.io/linux/2016/07/12/installing-gentoo-on-a-thinkpad-x60s.html</guid>
         
         
         <category>linux</category>
@@ -217,8 +217,8 @@ This incredibly worked. I think the problem was that &lt;code&gt;multi-user.targ
 &lt;/p&gt;
 </description>
         <pubDate>Thu, 07 Jul 2016 14:49:18 +0200</pubDate>
-        <link>http://localhost:4000/linux/2016/07/07/get-a-bluetooth-keyboard-work-with-arch.html</link>
-        <guid isPermaLink="true">http://localhost:4000/linux/2016/07/07/get-a-bluetooth-keyboard-work-with-arch.html</guid>
+        <link>http://praticamentetilde.github.io/linux/2016/07/07/get-a-bluetooth-keyboard-work-with-arch.html</link>
+        <guid isPermaLink="true">http://praticamentetilde.github.io/linux/2016/07/07/get-a-bluetooth-keyboard-work-with-arch.html</guid>
         
         
         <category>linux</category>
diff --git a/_site/index.html b/_site/index.html
index 5cc29f4..4cc7317 100644
--- a/_site/index.html
+++ b/_site/index.html
@@ -12,8 +12,8 @@
   <link rel="stylesheet" href="/css/main.css">
   <link href='https://fonts.googleapis.com/css?family=Hammersmith+One' rel='stylesheet' type='text/css'>
   <link href="https://fonts.googleapis.com/css?family=Source+Code+Pro" rel="stylesheet"> 
-  <link rel="canonical" href="http://localhost:4000/">
-  <link rel="alternate" type="application/rss+xml" title="maggioni.xyz" href="http://localhost:4000/feed.xml">
+  <link rel="canonical" href="http://praticamentetilde.github.io/">
+  <link rel="alternate" type="application/rss+xml" title="maggioni.xyz" href="http://praticamentetilde.github.io/feed.xml">
   <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
   <script src="https://rawgit.com/snaptortoise/konami-js/master/konami.js"></script>
   <!-- Favicon -->
diff --git a/_site/linux/2016/07/07/get-a-bluetooth-keyboard-work-with-arch.html b/_site/linux/2016/07/07/get-a-bluetooth-keyboard-work-with-arch.html
index e7544a6..e37d1dd 100644
--- a/_site/linux/2016/07/07/get-a-bluetooth-keyboard-work-with-arch.html
+++ b/_site/linux/2016/07/07/get-a-bluetooth-keyboard-work-with-arch.html
@@ -11,8 +11,8 @@
   <link rel="stylesheet" href="/css/main.css">
   <link href='https://fonts.googleapis.com/css?family=Hammersmith+One' rel='stylesheet' type='text/css'>
   <link href="https://fonts.googleapis.com/css?family=Source+Code+Pro" rel="stylesheet"> 
-  <link rel="canonical" href="http://localhost:4000/linux/2016/07/07/get-a-bluetooth-keyboard-work-with-arch.html">
-  <link rel="alternate" type="application/rss+xml" title="maggioni.xyz" href="http://localhost:4000/feed.xml">
+  <link rel="canonical" href="http://praticamentetilde.github.io/linux/2016/07/07/get-a-bluetooth-keyboard-work-with-arch.html">
+  <link rel="alternate" type="application/rss+xml" title="maggioni.xyz" href="http://praticamentetilde.github.io/feed.xml">
   <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
   <script src="https://rawgit.com/snaptortoise/konami-js/master/konami.js"></script>
   <!-- Favicon -->
diff --git a/_site/linux/2016/07/12/installing-gentoo-on-a-thinkpad-x60s.html b/_site/linux/2016/07/12/installing-gentoo-on-a-thinkpad-x60s.html
index 24a9885..9cf8548 100644
--- a/_site/linux/2016/07/12/installing-gentoo-on-a-thinkpad-x60s.html
+++ b/_site/linux/2016/07/12/installing-gentoo-on-a-thinkpad-x60s.html
@@ -11,8 +11,8 @@
   <link rel="stylesheet" href="/css/main.css">
   <link href='https://fonts.googleapis.com/css?family=Hammersmith+One' rel='stylesheet' type='text/css'>
   <link href="https://fonts.googleapis.com/css?family=Source+Code+Pro" rel="stylesheet"> 
-  <link rel="canonical" href="http://localhost:4000/linux/2016/07/12/installing-gentoo-on-a-thinkpad-x60s.html">
-  <link rel="alternate" type="application/rss+xml" title="maggioni.xyz" href="http://localhost:4000/feed.xml">
+  <link rel="canonical" href="http://praticamentetilde.github.io/linux/2016/07/12/installing-gentoo-on-a-thinkpad-x60s.html">
+  <link rel="alternate" type="application/rss+xml" title="maggioni.xyz" href="http://praticamentetilde.github.io/feed.xml">
   <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
   <script src="https://rawgit.com/snaptortoise/konami-js/master/konami.js"></script>
   <!-- Favicon -->
diff --git a/_site/linux/2016/07/28/how-to-rickroll-people-launching-rm-rf-on-your-system.html b/_site/linux/2016/07/28/how-to-rickroll-people-launching-rm-rf-on-your-system.html
index 912cabd..dee8490 100644
--- a/_site/linux/2016/07/28/how-to-rickroll-people-launching-rm-rf-on-your-system.html
+++ b/_site/linux/2016/07/28/how-to-rickroll-people-launching-rm-rf-on-your-system.html
@@ -11,8 +11,8 @@
   <link rel="stylesheet" href="/css/main.css">
   <link href='https://fonts.googleapis.com/css?family=Hammersmith+One' rel='stylesheet' type='text/css'>
   <link href="https://fonts.googleapis.com/css?family=Source+Code+Pro" rel="stylesheet"> 
-  <link rel="canonical" href="http://localhost:4000/linux/2016/07/28/how-to-rickroll-people-launching-rm-rf-on-your-system.html">
-  <link rel="alternate" type="application/rss+xml" title="maggioni.xyz" href="http://localhost:4000/feed.xml">
+  <link rel="canonical" href="http://praticamentetilde.github.io/linux/2016/07/28/how-to-rickroll-people-launching-rm-rf-on-your-system.html">
+  <link rel="alternate" type="application/rss+xml" title="maggioni.xyz" href="http://praticamentetilde.github.io/feed.xml">
   <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
   <script src="https://rawgit.com/snaptortoise/konami-js/master/konami.js"></script>
   <!-- Favicon -->