diff --git a/.prettierrc.mjs b/.prettierrc.mjs
index 990614f..1748ccb 100644
--- a/.prettierrc.mjs
+++ b/.prettierrc.mjs
@@ -30,7 +30,7 @@ export default {
 		},
 	],
 	plugins: ["prettier-plugin-astro"],
-	printWidth: 180,
+	printWidth: 256,
 	proseWrap: "never",
 	quoteProps: "consistent",
 	requirePragma: false,
diff --git a/src/components/Analytics.astro b/src/components/Analytics.astro
index 8235dea..3be88c7 100644
--- a/src/components/Analytics.astro
+++ b/src/components/Analytics.astro
@@ -1,2 +1,2 @@
 <!-- AppMetrix -->
-<script is:inline src="https://appmetrix.com/pixel/T5X0z12SoASBV8Dv"></script>
+<script is:inline defer src="https://appmetrix.com/pixel/T5X0z12SoASBV8Dv"></script>
diff --git a/src/components/Comments.astro b/src/components/Comments.astro
index 5474d89..c2d6531 100644
--- a/src/components/Comments.astro
+++ b/src/components/Comments.astro
@@ -15,6 +15,7 @@ const theme = "transparent_dark";
 
 <script
 	is:inline
+	defer
 	src="https://giscus.app/client.js"
 	data-category-id={categoryId}
 	data-category={category}
diff --git a/src/components/Header.astro b/src/components/Header.astro
index f2089a7..bd04320 100644
--- a/src/components/Header.astro
+++ b/src/components/Header.astro
@@ -10,6 +10,6 @@
 </style>
 
 <header>
-	<a href="/">Home</a>
-	<a href="/blog/">Blog</a>
+	<a href="/" lang="en" aria-label="Home">Home</a>
+	<a href="/blog/" lang="en" aria-label="Blog">Blog</a>
 </header>
diff --git a/src/components/PostElement.astro b/src/components/PostElement.astro
index e5a9c50..2263e92 100644
--- a/src/components/PostElement.astro
+++ b/src/components/PostElement.astro
@@ -25,10 +25,10 @@ const formattedDate = dayjs(post.data.pubDate.toString()).format("MMMM DD, YYYY"
 </style>
 
 <li>
-	<a href={`/blog/${post.slug}`}>{post.data.title}</a>
+	<a href={`/blog/${post.slug}`} lang={post.data.lang}>{post.data.title}</a>
 	<div>
 		<small>
-			<time datetime={post.data.pubDate.toISOString()}>{formattedDate}</time>
+			<time datetime={post.data.pubDate.toISOString()} lang="en">{formattedDate}</time>
 			<span>•</span>
 			<span>{remarkPluginFrontmatter.minutesRead}</span>
 		</small>
diff --git a/src/components/Sections/LatestPosts.astro b/src/components/Sections/LatestPosts.astro
index 04ce9fe..070dc46 100644
--- a/src/components/Sections/LatestPosts.astro
+++ b/src/components/Sections/LatestPosts.astro
@@ -26,7 +26,9 @@ const latestPosts = posts.slice(0, 5);
 		{
 			latestPosts.map((post) => (
 				<li>
-					<a href={`/blog/${post.slug}`}>{post.data.title}</a>
+					<a href={`/blog/${post.slug}`} lang={post.data.lang}>
+						{post.data.title}
+					</a>
 					<small>{dayjs(post.data.pubDate.toString()).format("MMMM DD, YYYY")}</small>
 				</li>
 			))
diff --git a/src/components/Sections/SocialLinks.astro b/src/components/Sections/SocialLinks.astro
index ff04834..53b8243 100644
--- a/src/components/Sections/SocialLinks.astro
+++ b/src/components/Sections/SocialLinks.astro
@@ -19,7 +19,7 @@
 <section>
 	<div>
 		<a href="https://github.com/valentineus" title="GitHub" target="_blank">
-			<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+			<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-label="GitHub">
 				<path
 					d="M9 19c-5 1.5-5-2.5-7-3m14 6v-3.87a3.37 3.37 0 0 0-.94-2.61c3.14-.35 6.44-1.54 6.44-7A5.44 5.44 0 0 0 20 4.77 5.07 5.07 0 0 0 19.91 1S18.73.65 16 2.48a13.38 13.38 0 0 0-7 0C6.27.65 5.09 1 5.09 1A5.07 5.07 0 0 0 5 4.77a5.44 5.44 0 0 0-1.5 3.78c0 5.42 3.3 6.61 6.44 7A3.37 3.37 0 0 0 9 18.13V22"
 				>
@@ -27,13 +27,13 @@
 			</svg>
 		</a>
 		<a href="mailto:valentin@popov.link" title="E-Mail" target="_blank">
-			<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+			<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-label="E-Mail">
 				<path d="M4 4h16c1.1 0 2 .9 2 2v12c0 1.1-.9 2-2 2H4c-1.1 0-2-.9-2-2V6c0-1.1.9-2 2-2z"></path>
 				<polyline points="22,6 12,13 2,6"></polyline>
 			</svg>
 		</a>
 		<a href="/feed.xml" title="RSS" target="_blank">
-			<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+			<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-label="RSS">
 				<path d="M4 11a9 9 0 0 1 9 9"></path>
 				<path d="M4 4a16 16 0 0 1 16 16"></path>
 				<circle cx="5" cy="19" r="1"></circle>
diff --git a/src/components/Sections/Welcome.astro b/src/components/Sections/Welcome.astro
index acbeeac..8056202 100644
--- a/src/components/Sections/Welcome.astro
+++ b/src/components/Sections/Welcome.astro
@@ -1,10 +1,7 @@
 <section>
 	<div>
 		<h1>Hi, I'm Valentin Popov 👋</h1>
-		<p>
-			I'm a professional software developer currently working as a project manager and team lead. On my personal website, I share thoughts on tech, leadership, and digital
-			life.
-		</p>
+		<p>I'm a professional software developer currently working as a project manager and team lead. On my personal website, I share thoughts on tech, leadership, and digital life.</p>
 		<p>Welcome, and feel free to explore!</p>
 	</div>
 </section>
diff --git a/src/content/blog/create-lib-file-from-dll.md b/src/content/blog/create-lib-file-from-dll.md
index 54b61e2..78d8e63 100644
--- a/src/content/blog/create-lib-file-from-dll.md
+++ b/src/content/blog/create-lib-file-from-dll.md
@@ -3,6 +3,7 @@ title: 'Create ".lib" file from ".dll" (archive)'
 author: "Adrian Henke"
 pubDate: "2023-05-04"
 description: "Learn how to generate a *.lib file from a *.dll with this comprehensive guide. Using the Visual Studio Command Prompt and Microsoft's recommended tools, this article walks you through the steps for a seamless process. Perfect for developers working with 3rd party win dll's."
+lang: "en"
 ---
 
 > This's a copy of a non-my post. The original article [is here](https://adrianhenke.wordpress.com/2008/12/05/create-lib-file-from-dll/) ([archive](https://web.archive.org/web/20161118122539/https://adrianhenke.wordpress.com/2008/12/05/create-lib-file-from-dll/)).
diff --git a/src/content/blog/electron-reload.md b/src/content/blog/electron-reload.md
index a07d274..8470d95 100644
--- a/src/content/blog/electron-reload.md
+++ b/src/content/blog/electron-reload.md
@@ -3,6 +3,7 @@ title: "Горячая перезагрузка ElectronJS приложения"
 author: "Valentin Popov"
 pubDate: "2019-08-15"
 description: "Руководство по автоматической перезагрузке приложений на Electron с помощью пакетов electron-reload и electron-webpack. Обход проблем с совместимостью и использование HMR для renderer процесса."
+lang: "ru"
 ---
 
 ## Main процесс
diff --git a/src/content/blog/example-content.md b/src/content/blog/example-content.md
index 662b2b3..1d54603 100644
--- a/src/content/blog/example-content.md
+++ b/src/content/blog/example-content.md
@@ -3,6 +3,7 @@ title: "Example Content"
 author: "Example User"
 pubDate: "2018-01-01"
 description: "Howdy! This is an example blog post that shows several types of HTML content supported in this theme."
+lang: "en"
 draft: true
 ---
 
diff --git a/src/content/blog/getting-source-code-of-chromium.md b/src/content/blog/getting-source-code-of-chromium.md
index 161a40f..b08c7a7 100644
--- a/src/content/blog/getting-source-code-of-chromium.md
+++ b/src/content/blog/getting-source-code-of-chromium.md
@@ -3,6 +3,7 @@ title: 'Получение исходного кода "Chromium Projects"'
 author: "Valentin Popov"
 pubDate: "2012-01-30"
 description: "Изучение исходных кодов Chromium: подготовка системы и установка необходимых программных компонентов. Руководство для начинающих разработчиков. Получите инструкции по установке Microsoft Visual Studio, Cygwin, Python и других инструментов. Действительно на январь-февраль 2012 года."
+lang: "ru"
 ---
 
 > Перенос [оригинальной статьи](https://adeptus-mechanicus.blogspot.com/2012/01/chromium-projects.html) 2012 года из моего [старого блога](https://adeptus-mechanicus.blogspot.com/) ([зеркало](https://web.archive.org/web/20160217052148/http://adeptus-mechanicus.blogspot.com/)).
diff --git a/src/content/blog/installing-moodle-to-fedora.md b/src/content/blog/installing-moodle-to-fedora.md
index 12e2e4e..c7b4de0 100644
--- a/src/content/blog/installing-moodle-to-fedora.md
+++ b/src/content/blog/installing-moodle-to-fedora.md
@@ -3,6 +3,7 @@ title: "Установка Moodle в Fedora"
 author: "Valentin Popov"
 pubDate: "2018-07-23"
 description: "Решение проблем установки Moodle из-за SELinux: как настроить правила доступа для устранения ошибок в веб-интерфейсе и при работе с cURL. Практические советы и команды."
+lang: "ru"
 ---
 
 Во время установки Moodle, сталкиваешься со следующими проблемами:
diff --git a/src/content/blog/rust-and-tl-mr3020.md b/src/content/blog/rust-and-tl-mr3020.md
index 2e23f3b..54d0d69 100644
--- a/src/content/blog/rust-and-tl-mr3020.md
+++ b/src/content/blog/rust-and-tl-mr3020.md
@@ -3,6 +3,7 @@ title: "Компиляция Rust на TL-MR3020"
 author: "Valentin Popov"
 pubDate: "2023-05-01"
 description: 'Как настроить и оптимизировать проект Rust для кросс-компиляции на TP-Link TL-MR3020 с использованием Fedora Linux 38 и OpenWrt 22.03.4. Шаг за шагом от базового "Hello, World!" до асинхронного TCP сервера.'
+lang: "ru"
 ---
 
 Информация в статье актуальна для дистрибутива [Fedora Linux 38](https://docs.fedoraproject.org/en-US/releases/f38/), прошивки [OpenWrt 22.03.4](https://openwrt.org/releases/22.03/notes-22.03.4) и устройства [TP-Link TL-MR3020](https://www.tp-link.com/en/home-networking/3g-4g-router/tl-mr3020/) ревизии v3.20.
diff --git a/src/content/config.ts b/src/content/config.ts
index 245f20e..3467bda 100644
--- a/src/content/config.ts
+++ b/src/content/config.ts
@@ -8,6 +8,7 @@ const blog = defineCollection({
 		draft: z.optional(z.boolean()),
 		pubDate: z.coerce.date(),
 		title: z.string(),
+		lang: z.string(),
 	}),
 });
 
diff --git a/src/env.d.ts b/src/env.d.ts
new file mode 100644
index 0000000..d714331
--- /dev/null
+++ b/src/env.d.ts
@@ -0,0 +1,9 @@
+/// <reference path="../.astro/types.d.ts" />
+interface ImportMetaEnv {
+	readonly DEFAULT_TITLE: string;
+	readonly DEFAULT_DESCRIPTION: string;
+}
+
+interface ImportMeta {
+	readonly env: ImportMetaEnv;
+}
diff --git a/src/layouts/BaseLayout.astro b/src/layouts/BaseLayout.astro
index 908078e..f33ca69 100644
--- a/src/layouts/BaseLayout.astro
+++ b/src/layouts/BaseLayout.astro
@@ -7,12 +7,13 @@ import "../scss/global.scss";
 type Props = {
 	readonly description: string;
 	readonly title: string;
+	readonly lang: string;
 };
 
-const { title, description } = Astro.props;
+const { title, description, lang } = Astro.props;
 ---
 
-<html lang="ru">
+<html lang={lang}>
 	<Head title={title} description={description} />
 
 	<body>
diff --git a/src/pages/404.astro b/src/pages/404.astro
index 7c2b420..8bbd18a 100644
--- a/src/pages/404.astro
+++ b/src/pages/404.astro
@@ -3,9 +3,10 @@ import Layout from "../layouts/BaseLayout.astro";
 
 const title = "404 — Page Not Found | Valentin Popov";
 const description = "The page you're looking for doesn't exist!";
+const lang = "en";
 ---
 
-<Layout title={title} description={description}>
+<Layout title={title} description={description} lang={lang}>
 	<div style="text-align:center;">
 		<h1>404</h1>
 		<p><strong>Page not found</strong></p>
diff --git a/src/pages/blog/[...slug].astro b/src/pages/blog/[...slug].astro
index 6c904d0..c625057 100644
--- a/src/pages/blog/[...slug].astro
+++ b/src/pages/blog/[...slug].astro
@@ -24,6 +24,7 @@ const { Content, remarkPluginFrontmatter } = await post.render();
 const date = dayjs(post.data.pubDate.toString()).format("MMMM DD, YYYY");
 const title = `${post.data.title} | Valentin Popov`;
 const description = post.data.description;
+const lang = post.data.lang;
 ---
 
 <style lang="scss">
@@ -34,7 +35,7 @@ const description = post.data.description;
 	}
 </style>
 
-<Layout title={title} description={description}>
+<Layout title={title} description={description} lang={lang}>
 	<article>
 		<section>
 			<h1>{post.data.title}</h1>
@@ -44,7 +45,7 @@ const description = post.data.description;
 			<p>
 				<small>
 					Posted
-					<time datetime={post.data.pubDate.toISOString()}>{date}</time>
+					<time datetime={post.data.pubDate.toISOString()} lang="en">{date}</time>
 					by&nbsp;{post.data.author}
 					<span>&nbsp;•&nbsp;</span>
 					<span>{remarkPluginFrontmatter.minutesRead}</span>
diff --git a/src/pages/blog/index.astro b/src/pages/blog/index.astro
index b240cfa..f800268 100644
--- a/src/pages/blog/index.astro
+++ b/src/pages/blog/index.astro
@@ -4,8 +4,9 @@ import { getCollection } from "astro:content";
 import Layout from "../../layouts/BaseLayout.astro";
 import PostElement from "../../components/PostElement.astro";
 
-const title = "Blog | Valentin Popov";
-const description = "A collection of articles on software development, tech leadership and open-source experiments.";
+const title = "Valentin Popov's Blog | Software Development, Leadership & Open-Source";
+const description = "Explore Valentin Popov's blog on software development, tech leadership, and open-source experiments. Stay updated with in-depth tutorials and expert insights.";
+const lang = "en";
 
 const posts = await getCollection("blog", ({ data }) => {
 	return data.draft !== true;
@@ -25,12 +26,16 @@ const postsByYear = posts.reduce<Record<string, CollectionEntry<"blog">[]>>((acc
 const years = Object.keys(postsByYear).sort((a, b) => Number(b) - Number(a));
 ---
 
-<Layout title={title} description={description}>
+<Layout title={title} description={description} lang={lang}>
+	<section>
+		<h1>Blog posts</h1>
+	</section>
+
 	<section style={{ "margin-top": "3rem" }}>
 		{
 			years.map((year) => (
 				<div>
-					<div style={{ "margin-bottom": "1rem" }}>{year}</div>
+					<h2>{year}</h2>
 					<ul>
 						{postsByYear[year].map((post) => (
 							<PostElement post={post} />
diff --git a/src/pages/feed.xml.js b/src/pages/feed.xml.js
index 05dd3ac..7c41b4f 100644
--- a/src/pages/feed.xml.js
+++ b/src/pages/feed.xml.js
@@ -10,7 +10,7 @@ export async function GET(context) {
 	});
 
 	return rss({
-		customData: `<language>ru-ru</language>`,
+		customData: `<language>en</language>`,
 		description: description,
 		items: posts.map((post) => ({
 			customData: post.data.customData,
diff --git a/src/pages/index.astro b/src/pages/index.astro
index 42db836..f595b94 100644
--- a/src/pages/index.astro
+++ b/src/pages/index.astro
@@ -4,11 +4,12 @@ import LatestPostsSection from "../components/Sections/LatestPosts.astro";
 import SocialLinksSection from "../components/Sections/SocialLinks.astro";
 import WelcomeSection from "../components/Sections/Welcome.astro";
 
-const title = "Valentin Popov";
-const description = "A personal website of Valentin Popov, a software developer and team lead.";
+const title = "Valentin Popov – Software Developer & Team Lead | Tech Insights";
+const description = "Valentin Popov is an experienced project manager and team lead sharing expert insights on software development, leadership, and digital innovation.";
+const lang = "en";
 ---
 
-<Layout title={title} description={description}>
+<Layout title={title} description={description} lang={lang}>
 	<WelcomeSection />
 	<SocialLinksSection />
 	<LatestPostsSection />