diff --git a/config.toml b/config.toml
index b066945..138f8d6 100644
--- a/config.toml
+++ b/config.toml
@@ -52,8 +52,8 @@ toc = true
 bottom_footnotes = true
 copy_button = true
 code_block_name_links = true
-katex = true
-mermaid = true
+katex = false     # can be set to true in individual posts as needed
+mermaid = false   # can be set to true in individual posts as needed
 show_reading_time = false
 
 copyright = "© $CURRENT_YEAR Fabian Montero $SEPARATOR Unless otherwise noted, the content in this website is available under the [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) license."
@@ -76,6 +76,7 @@ footer_menu = [
     {name = "notes", url = "https://notes.posixlycorrect.com"},
     {name = "ebooks", url = "https://calibre.posixlycorrect.com"},
     {name = "photos", url = "https://photos.posixlycorrect.com"},
+    {name = "sitemap", url = "sitemap.xml"},
 ]
 
 
@@ -92,3 +93,17 @@ u_key = "https://public.posixlycorrect.com/pki/A8981D346F8F4130CA16A7775517E687F
 # https://webmention.io/settings
 enable = true
 domain = "posixlycorrect.com"
+
+
+[extra.isso]
+enabled_for_all_posts = false
+automatic_loading = true
+endpoint_url = "http://isso.posixlycorrect.com"
+page_id_is_slug = true
+lang = ""
+max_comments_top = "inf"
+max_comments_nested = "5"
+avatar = false
+voting = true
+page_author_hashes = ""
+lazy_loading = true
diff --git a/content/_index.md b/content/_index.md
index 45d5eeb..2e27552 100644
--- a/content/_index.md
+++ b/content/_index.md
@@ -6,3 +6,5 @@
 Welcome. You have reached the root endpoint of the posixlycorrect server, my home server.
 
 My name is Fabian Montero, I am a Linux Embedded Engineer. Check out my projects [here](https://git.posixlycorrect.com/fabian?tab=activity) or email me at *fabian [at] posixlycorrect [dot] com*. Get my gpg key [here](https://public.posixlycorrect.com/pki/A8981D346F8F4130CA16A7775517E687FCCE0BB9.asc).
+
+Please sign my [guestbook](https://posixlycorrect.com/guestbook/). :)
diff --git a/content/guestbook.md b/content/guestbook.md
new file mode 100644
index 0000000..2cdcabb
--- /dev/null
+++ b/content/guestbook.md
@@ -0,0 +1,6 @@
++++
+title = "guestbook"
+
+[extra]
+isso = true
++++
diff --git a/content/lib/_index.md b/content/lib/_index.md
index 5b50db7..f461529 100644
--- a/content/lib/_index.md
+++ b/content/lib/_index.md
@@ -6,3 +6,4 @@ title = "lib"
 [visual thinking](@/lib/visual_thinking.md)  
 [be methodical](@/lib/be_methodical.md)  
 [digital gardening](https://git.posixlycorrect.com/fabian/digital-gardeners)  
+[indieweb](https://https://indieweb.org/)  
diff --git a/content/lib/art_collection.md b/content/lib/art_collection.md
deleted file mode 100644
index 54366a2..0000000
--- a/content/lib/art_collection.md
+++ /dev/null
@@ -1,25 +0,0 @@
-+++
-title = "art collection"
-+++
-I own a very small art collection. Here are some photos of the pieces in it and
-some info about them.
-
-# La tertulia
-Screen Printing  
-35x45cm  
-2021  
-
-La Tertulia is a screen printing ("serigrafía", in spanish) by Costa Rican
-artist Rafa Gutierrez.
-
-![La Tertulia](../../art_collection/la_tertulia1.jpg)
-
-![La Tertulia](../../art_collection/la_tertulia2.jpg)
-
-This is how I framed it:
-
-![La Tertulia](../../art_collection/la_tertulia3.jpg)
-
-This piece has a "sister" which I gifted to my father. It's called "Caribe":
-
-![Caribe](../../art_collection/caribe.jpg)
diff --git a/content/lib/places_to_eat_out.md b/content/lib/places_to_eat_out.md
deleted file mode 100644
index 2cd6424..0000000
--- a/content/lib/places_to_eat_out.md
+++ /dev/null
@@ -1,76 +0,0 @@
-+++
-title = "places to eat out"
-+++
-<ul id="randomize-list">
-    <li>Olive Garden</li>
-    <li>La Hacienda Mexicana</li>
-    <li>Wings on Fire</li>
-    <li>La 45</li>
-    <li>El Higuerón</li>
-    <li>La Casona de Laly</li>
-    <li>Pizza Hut</li>
-    <li>Spoon</li>
-    <li>Casa Rojas</li>
-    <li>Neko Sushi</li>
-    <li>Fitos</li>
-    <li>Cosí</li>
-    <li>La Caverna de Monto</li>
-    <li>Cantón</li>
-    <li>Ichiraku Sushi</li>
-    <li>Taquería Taquitos</li>
-    <li>95 Grados</li>
-    <li>Ciros</li>
-    <li>Family Pizza</li>
-</ul>
-
-<script>
-  // Function to randomize an array using the Fisher-Yates algorithm
-  function shuffleArray(array) {
-    for (let i = array.length - 1; i > 0; i--) {
-      const j = Math.floor(Math.random() * (i + 1));
-      [array[i], array[j]] = [array[j], array[i]];
-    }
-    return array;
-  }
-
-  // Get the list element by its ID
-  const listElement = document.getElementById('randomize-list');
-
-  // Function to randomize the list
-  function randomizeList() {
-    // Get the list items from the list element
-    const listItems = Array.from(listElement.getElementsByTagName('li'));
-
-    // Randomize the order of list items
-    const randomizedList = shuffleArray(listItems);
-
-    // Clear the existing list
-    listElement.innerHTML = '';
-
-    // Append the randomized list items back to the list element
-    randomizedList.forEach((item) => {
-      listElement.appendChild(item);
-    });
-  }
-
-  // Create a button element
-  const button = document.createElement('button');
-  button.textContent = 'Randomize!';
-  button.style.background = 'none';
-  button.style.border = 'none';
-  button.style.color = 'rgb(252, 147, 0)';
-  button.style.textDecoration = 'bold';
-  button.style.cursor = 'pointer';
-  button.style.padding = '5';
-  button.style.fontSize = '18px';
-  button.style.border = '1px solid rgb(252, 147, 0)';
-  button.style.borderRadius = '0';
-  button.style.fontFamily = 'Liberation Mono';
-  button.addEventListener('click', randomizeList);
-
-  // Insert the button before the list element
-  listElement.parentNode.insertBefore(button, listElement);
-
-  // Randomize the list initially
-  randomizeList();
-</script>
diff --git a/themes/tabi-lean/templates/partials/footer.html b/themes/tabi-lean/templates/partials/footer.html
index 34415a4..7e64fdd 100644
--- a/themes/tabi-lean/templates/partials/footer.html
+++ b/themes/tabi-lean/templates/partials/footer.html
@@ -84,7 +84,8 @@
                                 {%- set url = get_url(path=menu.url, lang=lang, trailing_slash=trailing_slash) -%}
                             {%- endif -%}
 
-                            <a class="nav-links no-hover-padding" href="{{ url }}">
+                            <a class="nav-links no-hover-padding" href="{{ url }}"
+                                {%- if menu.url is starting_with("http") -%} target="_blank" rel="noopener noreferrer"{%- endif -%}>
                                 {{ macros_translate::translate(key=menu.name, default=menu.name, language_strings=language_strings) }}
                             </a>
                         </li>
diff --git a/themes/tabi-lean/templates/partials/nav.html b/themes/tabi-lean/templates/partials/nav.html
index a225671..db93240 100644
--- a/themes/tabi-lean/templates/partials/nav.html
+++ b/themes/tabi-lean/templates/partials/nav.html
@@ -14,11 +14,10 @@
                                 {%- if menu.url is starting_with("http") -%}
                                     {%- if trailing_slash -%}
                                         <a class="nav-links no-hover-padding" href="{{ menu.url }}/"
-                                        target="_blank" rel="noopener noreferrer">
                                     {%- else -%}
                                         <a class="nav-links no-hover-padding" href="{{ menu.url }}"
-                                        target="_blank" rel="noopener noreferrer">
                                     {%- endif -%}
+                                    target="_blank" rel="noopener noreferrer">
                                 {%- else -%}
                                     <a class="nav-links no-hover-padding" href="{{ get_url(path=menu.url, lang=lang, trailing_slash=trailing_slash) }}">
                                 {%- endif -%}