diff --git a/.github/workflows/deploy-script.yml b/.github/workflows/deploy-script.yml
index 38045f4..04ca6cf 100644
--- a/.github/workflows/deploy-script.yml
+++ b/.github/workflows/deploy-script.yml
@@ -25,7 +25,7 @@ on:
 jobs:
   script:
     name: Script
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     environment: ${{ inputs.environment }}
     steps:
       - uses: appleboy/ssh-action@v1.0.3
diff --git a/biome.json b/biome.json
index 11d1c49..e8c5dd7 100644
--- a/biome.json
+++ b/biome.json
@@ -11,6 +11,9 @@
     "enabled": true,
     "rules": {
       "recommended": true,
+      "a11y": {
+        "useSemanticElements": "off"
+      },
       "nursery": {
         "useSortedClasses": {
           "level": "warn",
diff --git a/bun.lockb b/bun.lockb
index c4e9ff5..68cb166 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/global.d.ts b/global.d.ts
index 9ce5fc0..977f992 100644
--- a/global.d.ts
+++ b/global.d.ts
@@ -1,5 +1,3 @@
 // Use type safe message keys with `next-intl`
-// eslint-disable-next-line @typescript-eslint/consistent-type-imports
 type Messages = typeof import('./messages/en.json');
-// eslint-disable-next-line @typescript-eslint/no-empty-interface
 declare interface IntlMessages extends Messages {}
diff --git a/lefthook.yml b/lefthook.yml
index cf9b74e..b05d112 100644
--- a/lefthook.yml
+++ b/lefthook.yml
@@ -1,6 +1,6 @@
 pre-commit:
   commands:
     check:
-      glob: "*.{js,ts,cjs,mjs,d.cts,d.mts,jsx,tsx,json,jsonc}"
+      glob: "*.{js,ts,tsx,json}"
       stage_fixed: true
       run: bunx @biomejs/biome check --write --no-errors-on-unmatched --files-ignore-unknown=true --colors=off {staged_files}
diff --git a/lighthouserc.cjs b/lighthouserc.cjs
new file mode 100644
index 0000000..210334c
--- /dev/null
+++ b/lighthouserc.cjs
@@ -0,0 +1,66 @@
+const PAGES_EXCLUDED = ['news', 'storage'];
+
+// Do not convert into an ES6 export.
+// lighthouse-ci (as of 0.14.0) uses require() to import, and this is not supported with ES6 modules.
+module.exports = {
+  ci: {
+    collect: {
+      url: [
+        'http://localhost:3000/en/', // Trailing slash required, else the regex for default lighthouse rules won't catch this one
+        'http://localhost:3000/en/about',
+        'http://localhost:3000/en/events',
+        'http://localhost:3000/en/news',
+        'http://localhost:3000/en/news/1',
+        'http://localhost:3000/en/storage',
+        'http://localhost:3000/en/storage/shopping-cart',
+      ],
+      startServerCommand: 'bun run start',
+    },
+    upload: {
+      target: 'lhci',
+      serverBaseUrl: 'https://lhci.hackerspace-ntnu.no', // build token is set by the GH Action
+    },
+    assert: {
+      assertMatrix: [
+        {
+          matchingUrlPattern: `http://.*/en/(?!${PAGES_EXCLUDED.join('|')}).*`, // match all routes, except for pages with special rules. See https://github.com/GoogleChrome/lighthouse-ci/issues/511 and https://github.com/GoogleChrome/lighthouse-ci/issues/208#issuecomment-784501105
+          preset: 'lighthouse:recommended',
+          assertions: {
+            'bf-cache': 'off',
+            'color-contrast': 'off',
+            'heading-order': 'off',
+            'largest-contentful-paint': 'off',
+            'render-blocking-resources': 'off',
+          },
+        },
+        {
+          matchingUrlPattern: 'http://.*/en/news.*',
+          preset: 'lighthouse:recommended',
+          assertions: {
+            'bf-cache': 'off',
+            'color-contrast': 'off',
+            'heading-order': 'off',
+            'largest-contentful-paint': 'off',
+            'render-blocking-resources': 'off',
+            interactive: 'off',
+            'uses-responsive-images': 'off', // Should be removed when we obtain images from backend
+          },
+        },
+        {
+          matchingUrlPattern: 'http://.*/en/storage.*',
+          preset: 'lighthouse:recommended',
+          assertions: {
+            'bf-cache': 'off',
+            'color-contrast': 'off',
+            'heading-order': 'off',
+            'largest-contentful-paint': 'off',
+            'render-blocking-resources': 'off',
+            'unused-javascript': 'off',
+            'cumulative-layout-shift': 'off', // We don't always know how many items are in the cart, which can lead to layout shifts when loading completes
+            'max-potential-fid': 'off',
+          },
+        },
+      ],
+    },
+  },
+};
diff --git a/lighthouserc.yml b/lighthouserc.yml
deleted file mode 100644
index 5c8c3e1..0000000
--- a/lighthouserc.yml
+++ /dev/null
@@ -1,48 +0,0 @@
-ci:
-  collect:
-    url:
-      - 'http://localhost:3000/en'
-      - 'http://localhost:3000/en/events'
-      - 'http://localhost:3000/en/news'
-      - 'http://localhost:3000/en/news/1'
-      - 'http://localhost:3000/en/about'
-      - 'http://localhost:3000/en/storage'
-      - 'http://localhost:3000/en/storage/shopping-cart'
-    startServerCommand: 'bun run start'
-  upload:
-    target: 'lhci'
-    serverBaseUrl: 'https://lhci.hackerspace-ntnu.no' # build token is set by the GH Action
-  assert:
-    assertMatrix:
-      - matchingUrlPattern: '.*'
-        preset: 'lighthouse:recommended'
-        assertions:
-          first-contentful-paint:
-            - error
-            - maxNumericValue: 2000
-              aggregationMethod: optimistic
-          interactive:
-            - error
-            - maxNumericValue: 5000
-              aggregationMethod: optimistic
-          bf-cache: 'off'
-          csp-xss: 'off'
-          identical-links-same-purpose: 'off'
-          total-byte-weight: 'off'
-          color-contrast: 'off'
-          heading-order: 'off'
-          mainthread-work-breakdown: 'off'
-          bootup-time: 'off'
-          largest-contentful-paint: 'off'
-          dom-size: 'off'
-          render-blocking-resources: 'off'
-          server-response-time: 'off'
-          uses-responsive-images: 'off'
-          maskable-icon: 'off'
-          installable-manifest: 'off'
-      - matchingUrlPattern: 'http://[^/]+/storage.*'
-        preset: 'lighthouse:recommended'
-        assertions:
-          unused-javascript: 'off'
-          cumulative-layout-shift: 'off'
-          max-potential-fid: 'off'
diff --git a/next.config.js b/next.config.js
index 69a418a..819aad4 100644
--- a/next.config.js
+++ b/next.config.js
@@ -1,11 +1,7 @@
 import nextIntl from 'next-intl/plugin';
-
-/**
- * Run `build` or `dev` with `SKIP_ENV_VALIDATION` to skip env validation. This is especially useful
- * for Docker builds.
- */
 await import('./src/env.js');
-const withNextIntl = nextIntl('./src/lib/locale/i18n.ts');
+
+const withNextIntl = nextIntl('./src/lib/locale/request.ts');
 
 /** @type {import("next").NextConfig} */
 const config = {
diff --git a/package.json b/package.json
index 4640edb..43e37e9 100644
--- a/package.json
+++ b/package.json
@@ -36,8 +36,6 @@
     "@trpc/client": "^11.0.0-rc.490",
     "@trpc/react-query": "^11.0.0-rc.490",
     "@trpc/server": "^11.0.0-rc.490",
-    "autoprefixer": "^10.4.19",
-    "client-only": "^0.0.1",
     "cmdk": "1.0.0",
     "country-flag-icons": "^1.5.12",
     "cva": "^1.0.0-beta.1",
@@ -47,7 +45,6 @@
     "lucide-react": "^0.396.0",
     "next": "^14.2.10",
     "next-intl": "^3.18.1",
-    "next-sitemap": "^4.2.3",
     "next-themes": "^0.3.0",
     "nuqs": "^1.17.4",
     "postgres": "^3.4.4",
@@ -56,25 +53,29 @@
     "react-dom": "^18.3.1",
     "react-hook-form": "^7.53.0",
     "reading-time": "^1.5.0",
-    "server-only": "^0.0.1",
     "sharp": "^0.33.4",
     "superjson": "^2.2.1",
     "tailwind-merge": "^2.5.2",
     "zod": "^3.23.8"
   },
   "devDependencies": {
-    "@biomejs/biome": "1.8.3",
+    "@biomejs/biome": "^1.9.1",
     "@fluid-tailwind/tailwind-merge": "^0.0.2",
     "@types/node": "^20.14.8",
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.3.0",
+    "autoprefixer": "^10.4.20",
+    "client-only": "^0.0.1",
     "drizzle-kit": "^0.24.1",
     "fluid-tailwind": "^1.0.3",
     "lefthook": "^1.7.14",
+    "next-sitemap": "^4.2.3",
     "postcss": "^8.4.38",
+    "server-only": "^0.0.1",
     "tailwind-scrollbar": "^3.1.0",
     "tailwindcss": "^3.4.4",
     "tailwindcss-animate": "^1.0.7",
+    "tailwindcss-radix": "^3.0.5",
     "typescript": "^5.5.0"
   },
   "packageManager": "bun@1.1.12"
diff --git a/postcss.config.cjs b/postcss.config.js
similarity index 52%
rename from postcss.config.cjs
rename to postcss.config.js
index e305dd9..2ef30fc 100644
--- a/postcss.config.cjs
+++ b/postcss.config.js
@@ -1,3 +1,4 @@
+/** @type {import('postcss-load-config').Config} */
 const config = {
   plugins: {
     tailwindcss: {},
@@ -5,4 +6,4 @@ const config = {
   },
 };
 
-module.exports = config;
+export default config;
diff --git a/src/app/not-found.tsx b/src/app/not-found.tsx
index 5dd6846..17d77be 100644
--- a/src/app/not-found.tsx
+++ b/src/app/not-found.tsx
@@ -1,10 +1,11 @@
 'use client';
 
+import { routing } from '@/lib/locale';
 import NextError from 'next/error';
 
 export default function NotFoundPage() {
   return (
-    <html lang='en'>
+    <html lang={routing.defaultLocale}>
       <body>
         <NextError statusCode={404} />
       </body>
diff --git a/src/components/layout/Footer.tsx b/src/components/layout/Footer.tsx
index 0c83b28..cc7f462 100644
--- a/src/components/layout/Footer.tsx
+++ b/src/components/layout/Footer.tsx
@@ -6,7 +6,7 @@ import {
 } from '@/components/assets/icons';
 import { IDILogo, NexusLogo } from '@/components/assets/sponsors';
 import { LogoLink } from '@/components/layout/LogoLink';
-import { Nav } from '@/components/layout/Nav';
+import { Nav } from '@/components/layout/header/Nav';
 import { Button } from '@/components/ui/Button';
 import { Link } from '@/lib/locale/navigation';
 import { BugIcon, MailIcon } from 'lucide-react';
diff --git a/src/components/layout/Header.tsx b/src/components/layout/Header.tsx
index 1d67cdd..85faf28 100644
--- a/src/components/layout/Header.tsx
+++ b/src/components/layout/Header.tsx
@@ -1,8 +1,8 @@
 import { LogoLink } from '@/components/layout/LogoLink';
-import { MobileSheet } from '@/components/layout/MobileSheet';
-import { Nav } from '@/components/layout/Nav';
 import { DarkModeMenu } from '@/components/layout/header/DarkModeMenu';
 import { LocaleMenu } from '@/components/layout/header/LocaleMenu';
+import { MobileSheet } from '@/components/layout/header/MobileSheet';
+import { Nav } from '@/components/layout/header/Nav';
 import { ProfileMenu } from '@/components/layout/header/ProfileMenu';
 import { useTranslations } from 'next-intl';
 
diff --git a/src/components/layout/MobileSheet.tsx b/src/components/layout/header/MobileSheet.tsx
similarity index 96%
rename from src/components/layout/MobileSheet.tsx
rename to src/components/layout/header/MobileSheet.tsx
index 12eddbd..9bcd6da 100644
--- a/src/components/layout/MobileSheet.tsx
+++ b/src/components/layout/header/MobileSheet.tsx
@@ -1,7 +1,7 @@
 'use client';
 
 import { LogoLink } from '@/components/layout/LogoLink';
-import { Nav } from '@/components/layout/Nav';
+import { Nav } from '@/components/layout/header/Nav';
 import { Button } from '@/components/ui/Button';
 import {
   Sheet,
diff --git a/src/components/layout/Nav.tsx b/src/components/layout/header/Nav.tsx
similarity index 100%
rename from src/components/layout/Nav.tsx
rename to src/components/layout/header/Nav.tsx
diff --git a/src/components/news/ArticleCard.tsx b/src/components/news/ArticleCard.tsx
index 041f2ee..b7e28d7 100644
--- a/src/components/news/ArticleCard.tsx
+++ b/src/components/news/ArticleCard.tsx
@@ -49,7 +49,10 @@ function ArticleCard({
             fill
           />
           <CardHeader className='mt-auto w-full bg-background/95 p-4 backdrop-blur supports-[backdrop-filter]:bg-background/60 lg:p-6'>
-            <CardTitle className='line-clamp-1 text-lg transition-colors group-hover:text-primary sm:text-xl lg:text-2xl'>
+            <CardTitle
+              className='line-clamp-1 text-lg transition-colors group-hover:text-primary sm:text-xl lg:text-2xl'
+              level='h2'
+            >
               {title}
             </CardTitle>
             <CardDescription className='line-clamp-1 text-xs sm:text-sm'>
diff --git a/src/components/storage/ItemCard.tsx b/src/components/storage/ItemCard.tsx
index d653433..ebd734c 100644
--- a/src/components/storage/ItemCard.tsx
+++ b/src/components/storage/ItemCard.tsx
@@ -33,7 +33,7 @@ function ItemCard({
             priority={true}
           />
         </div>
-        <CardTitle className='mt-2 truncate leading-tight'>
+        <CardTitle className='mt-2 truncate leading-tight' level='h2'>
           {item.name}
         </CardTitle>
         <CardDescription>{item.location}</CardDescription>
diff --git a/src/components/ui/Card.tsx b/src/components/ui/Card.tsx
index 0479465..ac5b4b8 100644
--- a/src/components/ui/Card.tsx
+++ b/src/components/ui/Card.tsx
@@ -1,6 +1,10 @@
 import { cx } from '@/lib/utils';
 import * as React from 'react';
 
+type CardTitleProps = {
+  level?: 'h2' | 'h3' | 'h4';
+} & React.HTMLAttributes<HTMLHeadingElement>;
+
 const Card = React.forwardRef<
   HTMLDivElement,
   React.HTMLAttributes<HTMLDivElement>
@@ -28,19 +32,22 @@ const CardHeader = React.forwardRef<
 ));
 CardHeader.displayName = 'CardHeader';
 
-const CardTitle = React.forwardRef<
-  HTMLParagraphElement,
-  React.HTMLAttributes<HTMLHeadingElement>
->(({ className, ...props }, ref) => (
-  <h3
-    ref={ref}
-    className={cx(
-      'font-semibold text-2xl leading-none tracking-tight',
-      className,
-    )}
-    {...props}
-  />
-));
+const CardTitle = React.forwardRef<HTMLParagraphElement, CardTitleProps>(
+  ({ level = 'h3', className, ...props }, ref) => {
+    const Component = level;
+
+    return (
+      <Component
+        ref={ref}
+        className={cx(
+          'font-semibold text-2xl leading-none tracking-tight',
+          className,
+        )}
+        {...props}
+      />
+    );
+  },
+);
 CardTitle.displayName = 'CardTitle';
 
 const CardDescription = React.forwardRef<
diff --git a/src/components/ui/Combobox.tsx b/src/components/ui/Combobox.tsx
index fff8634..d51c3b2 100644
--- a/src/components/ui/Combobox.tsx
+++ b/src/components/ui/Combobox.tsx
@@ -50,7 +50,7 @@ function Combobox({
       <PopoverTrigger asChild>
         <Button
           variant='outline'
-          role='combobox' // biome-ignore lint: Button is styled, so we're not using the select element
+          role='combobox'
           aria-expanded={open}
           aria-label={ariaLabel}
           className={cx('w-[200px] justify-between', buttonClassName)}
diff --git a/src/lib/locale/i18n.ts b/src/lib/locale/request.ts
similarity index 81%
rename from src/lib/locale/i18n.ts
rename to src/lib/locale/request.ts
index 5754d72..5a5fb6e 100644
--- a/src/lib/locale/i18n.ts
+++ b/src/lib/locale/request.ts
@@ -3,8 +3,7 @@ import { getRequestConfig } from 'next-intl/server';
 import { notFound } from 'next/navigation';
 
 export default getRequestConfig(async ({ locale }) => {
-  // @ts-ignore
-  if (!routing.locales.includes(locale)) notFound();
+  if (!routing.locales.includes(locale as 'en')) notFound();
   return {
     messages: (await import(`../../../messages/${locale}.json`))
       .default as Messages,
diff --git a/tailwind.config.ts b/tailwind.config.ts
index 73a4ee5..6480b71 100644
--- a/tailwind.config.ts
+++ b/tailwind.config.ts
@@ -2,6 +2,7 @@ import tailwindFluid, { extract, screens, fontSize } from 'fluid-tailwind';
 import tailwindScrollbar from 'tailwind-scrollbar';
 import type { Config } from 'tailwindcss';
 import tailwindAnimate from 'tailwindcss-animate';
+import tailwindRadix from 'tailwindcss-radix';
 import { fontFamily } from 'tailwindcss/defaultTheme';
 
 const config = {
@@ -78,6 +79,9 @@ const config = {
     },
   },
   plugins: [
+    tailwindRadix({
+      variantPrefix: false,
+    }),
     tailwindFluid,
     tailwindAnimate,
     tailwindScrollbar({ nocompatible: true }),
diff --git a/tsconfig.json b/tsconfig.json
index 6cb01c3..9c1115c 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -31,10 +31,10 @@
   },
   "include": [
     ".eslintrc.js",
+    "postcss.config.js",
     "next-env.d.ts",
     "**/*.ts",
     "**/*.tsx",
-    "**/*.cjs",
     "**/*.js",
     ".next/types/**/*.ts"
   ],