diff --git a/public/img/compressed_noise.gif b/public/img/compressed_noise.gif
deleted file mode 100644
index f960f34..0000000
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diff --git a/public/img/noise.webm b/public/img/noise.webm
deleted file mode 100644
index 08b0ae5..0000000
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diff --git a/public/img/resized_noise.gif b/public/img/resized_noise.gif
deleted file mode 100644
index 157efac..0000000
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diff --git a/src/components/head/seo.astro b/src/components/head/seo.astro
index d106192..e12a2b2 100644
--- a/src/components/head/seo.astro
+++ b/src/components/head/seo.astro
@@ -4,7 +4,7 @@ import RichResults from './richResults.astro'
 ---
 
 <meta charset='UTF-8' />
-<meta name='description' content='jamerrq.dev' />
+<meta name='description' content='Jamer José: Software Development' />
 <meta
   name='viewport'
   content='width=device-width,initial-scale=1,viewport-fit=cover'
@@ -114,8 +114,8 @@ import RichResults from './richResults.astro'
 }
 
 <SEO
-  title='Jamer José - Backend Developer'
-  description="I'm a backend developer with a focus on Node.js, Python, C# (.NET) and TypeScript. I am passionate about building scalable and maintainable systems."
+  title='Jamer José - Software Development'
+  description="Hi! I'm Jamer José. A software (backend) developer with a focus on Node.js, Python, C# (.NET) and TypeScript. I am passionate about building scalable and maintainable systems."
   openGraph={{
     basic: {
       title: 'jamerrq.dev',
@@ -127,7 +127,7 @@ import RichResults from './richResults.astro'
     creator: '@jamerrq',
     card: 'summary_large_image',
     description:
-      "I'm a backend developer with a focus on Node.js, Python, C# (.NET) and TypeScript. I am passionate about building scalable and maintainable systems.",
+      "Hi! I'm Jamer José. A software (backend) developer with a focus on Node.js, Python, C# (.NET) and TypeScript. I am passionate about building scalable and maintainable systems.",
     image: 'https://jamerrq.dev/og-image2.png',
     site: '@jamerrq',
     title: 'jamerrq.dev'
diff --git a/src/components/main/container.astro b/src/components/main/container.astro
index 2bde9b5..6a1100e 100644
--- a/src/components/main/container.astro
+++ b/src/components/main/container.astro
@@ -12,7 +12,7 @@
     font-family: 'Fira Sans', sans-serif;
     text-align: center;
     padding: 1rem;
-    /* box-shadow: 0 0.05rem 0 0.1rem #000; */
+    box-shadow: 0 0.05rem 0 0.1rem #000;
     border: 2px solid white;
     font-weight: 600;
     gap: 0.5rem;
diff --git a/src/components/tech-stack/title.astro b/src/components/tech-stack/title.astro
index f063910..19deb75 100644
--- a/src/components/tech-stack/title.astro
+++ b/src/components/tech-stack/title.astro
@@ -22,8 +22,8 @@ const { lang = 'en' }: Props = Astro.props
     <p class='font-semibold text-balance text-sm xl:text-base'>
       {
         lang === 'en'
-          ? 'Painters have brushes, I got these <3'
-          : 'Los pintores tienen pinceles, yo tengo estas <3'
+          ? 'Painters have brushes, I got these 🦜'
+          : 'Los pintores tienen pinceles, yo tengo estas 🦜'
       }
     </p>
   </div>
diff --git a/src/layouts/blog-layout.astro b/src/layouts/blog-layout.astro
index ebbe985..a65cdcc 100644
--- a/src/layouts/blog-layout.astro
+++ b/src/layouts/blog-layout.astro
@@ -39,7 +39,7 @@ import '@fontsource/fira-mono'
   <div
     class='dark:bg-gray-900/95 py-8 bg-[#76ABAE] xl:h-[100dvh] h-[95dvh] lg:w-[80dvw] md:w-[95dvw] w-[65dvw] xs:w-[95dvw] mx-auto px-4 dark:text-emerald-50 [&>*]:text-balance overflow-y-auto max-h-[100dvh] [scrollbar-width:thin] relative'
   >
-    <aside class='sticky -top-5'>
+    <aside class='sticky -top-5 z-50'>
       <Buttons href={frontmatter.hrefLang} border />
     </aside>
     <br />
@@ -48,13 +48,13 @@ import '@fontsource/fira-mono'
       class='flex font-secondary bg-slate-300/90 p-2 cursor-pointer font-bold rounded'
       onclick='window.history.back()'
     >
-      <h1 class='-z-10 text-slate-950'>
+      <h1 class='text-slate-950'>
         {frontmatter.title}
       </h1>
     </header>
     <br />
     <div
-      class='[&>h1]:font-bold font-secondary font-semibold text-sm [&_h1]:text-emerald-950 [&_h1]:dark:text-emerald-300 [&_h2]:text-emerald-950 [&_h2]:dark:text-emerald-300 [&_h3]:text-emerald-900 [&_h3]:dark:text-emerald-300 [&_h1]:text-xl [&_h1]:xl:text-3xl [&_h1]:font-bold [&_h2]:font-semibold [&_h2]:text-lg [&_h2]:xl:text-2xl [&_h3]:text-base [&_h3]:xl:text-xl [&_h3]:font-semibold [&_p]:text-pretty [&_ul]:m-4 [&_ul]:list-disc max-w-[800px] [&_a]:font-semibold [&_a]:text-[#153448] [&_a]:dark:text-cyan-300 flex flex-col gap-5 mb-8 [&_blockquote]:[font-secondary] [&_code]:[font-firaMono] [&_a]:underline [&_a]:[target=_blank] [&_pre]:p-2 [&_pre]:overflow-x-hidden px-2 [&_table]:border [&_table]:rounded [&_table]:text-center [&_thead]:border [&_table]:p-2'
+      class='[&>h1]:font-bold font-secondary font-semibold text-sm [&_h1]:text-emerald-950 [&_h1]:dark:text-emerald-300 [&_h2]:text-slate-950 [&_h2]:dark:text-emerald-300 [&_h3]:text-emerald-900 [&_h3]:dark:text-emerald-300 [&_h1]:text-xl [&_h1]:xl:text-3xl [&_h1]:font-bold [&_h2]:font-semibold [&_h2]:text-lg [&_h2]:xl:text-2xl [&_h3]:text-base [&_h3]:xl:text-xl [&_h3]:font-semibold [&_p]:text-pretty [&_ul]:m-4 [&_ul]:list-disc max-w-[800px] [&_a]:font-semibold [&_a]:text-cyan-950 [&_a]:dark:text-cyan-300 flex flex-col gap-5 mb-8 [&_blockquote]:[font-secondary] [&_code]:[font-firaMono] [&_a]:underline [&_a]:[target=_blank] [&_pre]:p-2 [&_pre]:overflow-x-hidden px-2 [&_table]:border [&_table]:rounded [&_table]:text-center [&_thead]:border [&_table]:p-2'
       id='mdx-content'
     >
       <slot />
diff --git a/src/movies/Movie.astro b/src/movies/Movie.astro
index 20d3e4f..e2c9781 100644
--- a/src/movies/Movie.astro
+++ b/src/movies/Movie.astro
@@ -30,7 +30,7 @@ const {
     playsinline
     preload='auto'
     data-abs={absolute}
-    class='object-cover rounded h-48'
+    class='object-cover rounded-md h-48 shadow shadow-black'
   >
   </video>
 </a>
diff --git a/src/pages/404.astro b/src/pages/404.astro
index d286efa..71d4c3a 100644
--- a/src/pages/404.astro
+++ b/src/pages/404.astro
@@ -1,6 +1,7 @@
 ---
 import Layout from '@layouts/layout.astro'
 import Container from '@components/main/container.astro'
+import { Image } from 'astro:assets'
 ---
 
 <style>
@@ -12,7 +13,7 @@ import Container from '@components/main/container.astro'
     justify-items: center;
     color: white;
     border-radius: 0.5rem;
-    background-color: #1b383c;
+    /* background-color: #1b383c; */
     font-family: 'Averia', sans-serif;
     /* font-size: 2rem; */
     text-align: center;
@@ -25,7 +26,6 @@ import Container from '@components/main/container.astro'
 
   .go-home-button {
     text-decoration: none;
-    border: 1px solid white;
     padding: 0.5rem 1rem;
     border-radius: 0.5rem;
     box-shadow: 0 0.05rem 0 0.1rem #000;
@@ -42,25 +42,56 @@ import Container from '@components/main/container.astro'
   #_404_background {
     filter: blur(1px);
     z-index: -1;
-    /* width: 100vw;
-    height: 100vh; */
+    width: 100vw;
+    height: 100vh;
     position: fixed;
-    background-image: url('/pizarra.webp');
+    background-image: url('/mandelbrot.webp');
+  }
+
+  img {
+    --a: 8deg; /* control the angle of rotation (the smaller, the better) */
+    transform: perspective(400px)
+      rotate3d(var(--r, 1, -1), 0, calc(var(--i, 1) * var(--a)));
+    -webkit-mask: linear-gradient(135deg, #000c 40%, #000, #000c 60%) 100% 100%/250%
+      250%;
+    transition: 0.4s;
+    cursor: pointer;
+  }
+  .alt {
+    --r: 1, 1;
+    -webkit-mask: linear-gradient(45deg, #000c 40%, #000, #000c 60%) 0 100%/250%
+      250%;
+  }
+  img:hover {
+    --i: -1;
+    -webkit-mask-position: 0 0;
+  }
+  .alt:hover {
+    -webkit-mask-position: 100% 0;
   }
 </style>
 
 <Layout title='Resource Not Found - jamerrq.dev'>
-  <div id='_404_background' class='hidden xl:grid'></div>
+  <div id='_404_background'></div>
   <main class='grid place-content-center [&>div>p]:text-balance'>
     <Container>
       <h1 class='text-emerald-300 text-2xl'>Page Not Found!</h1>
       <p class='text-sm xl:text-base font-secondary'>
-        Sorry, the resource you are looking for does not exist (yet?).
+        Sorry, the resource you are looking for does not exist (yet?) 🗿
       </p>
+      <Image
+        src='/img/this_is_fine.webp'
+        alt='404'
+        width='200'
+        height='200'
+        class='rounded'
+      />
       <p class='text-sm xl:text-base font-secondary'>
-        Please check the URL and try again or go back.
+        Please check the URL and try again or go back 🗣️
       </p>
-      <div class='flex gap-2 text-emerald-300'>
+      <div
+        class='flex flex-col xl:flex-row justify-center w-full gap-2 text-emerald-300'
+      >
         <button class='text-base go-home-button' onclick='window.history.back()'
           >Go Back</button
         >
diff --git a/src/pages/blog/linux-tools-improve-workflow.mdx b/src/pages/blog/linux-tools-improve-workflow.mdx
index af0aefc..67426a7 100644
--- a/src/pages/blog/linux-tools-improve-workflow.mdx
+++ b/src/pages/blog/linux-tools-improve-workflow.mdx
@@ -34,7 +34,6 @@ Linux terminal.
     alt='fzf logo'
     width='2560'
     height='1600'
-	class='shadow-md rounded shadow-black'
   />
 </a>
 
@@ -144,3 +143,4 @@ recap of the tools mentioned in this post:
 | Zoxide  | A faster way to navigate your filesystem | <a href='https://github.com/ajeetdsouza/zoxide' target='_blank' rel='noopener'>ajeetdsouza/zoxide</a> |
 
 Thanks for reading! I hope you found this post useful :P
+More tools will be added in the future, so stay tuned!
diff --git a/src/pages/es/404.astro b/src/pages/es/404.astro
deleted file mode 100644
index 479ff59..0000000
--- a/src/pages/es/404.astro
+++ /dev/null
@@ -1,83 +0,0 @@
----
-import Layout from '@layouts/layout.astro'
-import Container from '@components/main/container.astro'
----
-
-<style>
-  #_404_container {
-    width: 50dvw;
-    min-height: 50dvh;
-    display: grid;
-    align-items: center;
-    justify-items: center;
-    color: white;
-    border-radius: 0.5rem;
-    background-color: #1b383c;
-    font-family: 'Averia', sans-serif;
-    /* font-size: 2rem; */
-    text-align: center;
-    padding: 1rem;
-    box-shadow: 0 0.05rem 0 0.1rem #000;
-    border: 1px solid white;
-    font-weight: 600;
-    gap: 0.25rem;
-  }
-
-  .go-home-button {
-    text-decoration: none;
-    border: 1px solid white;
-    padding: 0.5rem 1rem;
-    border-radius: 0.5rem;
-    box-shadow: 0 0.05rem 0 0.1rem #000;
-    transition: all 0.2s ease-in-out;
-  }
-
-  .go-home-button:hover {
-    color: #1b383c;
-    background-color: white;
-    transform: scale(1.02);
-    transition: all 0.2s ease-in-out;
-  }
-
-  #_404_background {
-    filter: blur(1px);
-    z-index: -1;
-    /* width: 100vw;
-    height: 100vh; */
-    position: fixed;
-    background-image: url('/pizarra.webp');
-  }
-
-  a,
-  button {
-    font-family: 'Rubik Doodle Subset', sans-serif;
-  }
-</style>
-
-<Layout title='Resource Not Found - jamerrq.dev'>
-  <div id='_404_background' class='hidden xl:grid'></div>
-  <main class='grid place-content-center bg-black [&>div>p]:text-balance'>
-    <Container>
-      <h1 class='text-emerald-300 text-2xl'>Page Not Found!</h1>
-      <p class='text-sm xl:text-base font-secondary'>
-        Sorry, the resource you are looking for does not exist (yet?).
-      </p>
-      <p class='text-sm xl:text-base font-secondary'>
-        Please check the URL and try again or go back.
-      </p>
-      <div class='flex gap-2 text-emerald-300'>
-        <button class='text-base go-home-button' onclick='window.history.back()'
-          >Go Back</button
-        >
-        <button
-          class='text-base go-home-button'
-          onclick='window.location.reload()'
-        >
-          Try Again</button
-        >
-        <!-- Go home -->
-        <a href='/' class='text-base go-home-button'>Go Home</a>
-      </div>
-    </Container>
-  </main>
-</Layout>
diff --git a/src/pages/es/blog/acerca-de-esta-web.mdx b/src/pages/es/blog/acerca-de-esta-web.mdx
index d1ec22e..18b7f63 100644
--- a/src/pages/es/blog/acerca-de-esta-web.mdx
+++ b/src/pages/es/blog/acerca-de-esta-web.mdx
@@ -12,7 +12,7 @@ import { Image } from 'astro:assets'
 ## Mejor empezar que perfecto
 
 Empezar algo es a veces la clave para terminarlo.
-Siempre puedes mejorarlo más tarde.
+Siempre puedes irlo mejorando con el tiempo.
 
 ## ¿Qué puedes aprender de este proyecto?
 
@@ -23,13 +23,14 @@ Siempre puedes mejorarlo más tarde.
 - Integración de Preact con Astro
 - Cómo usar señales con Preact
 - Diseños con CSS Grid y Flexbox
-- Desarrollo de PWA dentro de una aplicación Astro
+- <a href="/blog/convert-astro-app-to-pwa">Desarrollo de PWA dentro de una aplicación Astro</a>
 - Trucos y plugins de Tailwind
 - Modo oscuro con Tailwind CSS
 - Cómo usar MDX en Astro
 - Accesibilidad y SEO en Astro
 - GitHub Projects y GitHub Actions
 - I18n routing con Astro (Multilenguaje)
+- <a href="/404">Páginas de error (404, 500) personalizadas</a>
 
 Explora el código fuente de esta web en <a
 href="https://github.com/jamerrq/jamerrq.dev" target="_blank" rel="noopener
diff --git a/src/pages/es/blog/herramientas-linux-mejorar-flujo-trabajo.mdx b/src/pages/es/blog/herramientas-linux-mejorar-flujo-trabajo.mdx
index c84760f..b7cef2a 100644
--- a/src/pages/es/blog/herramientas-linux-mejorar-flujo-trabajo.mdx
+++ b/src/pages/es/blog/herramientas-linux-mejorar-flujo-trabajo.mdx
@@ -34,7 +34,6 @@ trabajo cuando trabajo usando la terminal de Linux.
     alt='fzf logo'
     width='2560'
     height='1600'
-	class='shadow-md rounded shadow-black'
   />
 </a>
 
@@ -151,3 +150,5 @@ puedes ver un resumen de las herramientas mencionadas en esta publicación:
 | Zoxide      | Navega por tus archivos de manera más rápida | <a href='https://github.com/ajeetdsouza/zoxide' target='_blank' rel='noopener'>ajeetdsouza/zoxide</a> |
 
 ¡Gracias por leer! Espero que hayas encontrado útil esta publicación :)
+Agregaré más herramientas a esta lista en futuras ediciones, así que asegúrate
+de volver a visitar esta publicación de vez en cuando.
diff --git a/src/slides/oss/page1.astro b/src/slides/oss/page1.astro
index fd9b298..6b77411 100644
--- a/src/slides/oss/page1.astro
+++ b/src/slides/oss/page1.astro
@@ -72,10 +72,7 @@ import Template from './template.astro'
   </h2>
   <span class='italic text-slate-900 mt-8'>
     Puedes visitar esta presentación en
-    <a
-      href='https://jamerrq.deno.dev/oss'
-      class='text-blue-700 hover:underline'
-    >
+    <a href='https://jamerrq.dev/oss' class='text-blue-700 hover:underline'>
       jamerrq.dev/opensource
     </a>
   </span>