diff --git a/src/lib/components/Gallery.svelte b/src/lib/components/Gallery.svelte
index 3b6b2d7..9962120 100644
--- a/src/lib/components/Gallery.svelte
+++ b/src/lib/components/Gallery.svelte
@@ -1,12 +1,13 @@
-<script>
+<script type="ts">
 	import Photo from './Photo.svelte';
 
-  /** @type {Album} */
-  export let album;
+  /** The album. */
+  export let album: Album;
 
-  /** @type {Item[]?} */
-  export let items = null;
+  /** The items to show. Set to `null` (or leave unset) to use all items of the album. */
+  export let items: Item[] | null = null;
 
+  /** Base URL */
   export let base = '';
 </script>
 
diff --git a/src/lib/components/Header.svelte b/src/lib/components/Header.svelte
index e7d5062..add0a37 100644
--- a/src/lib/components/Header.svelte
+++ b/src/lib/components/Header.svelte
@@ -1,10 +1,9 @@
-<script>
+<script type="ts">
 	import Icon from "./Icon.svelte";
 
   export let title = 'Galerie';
   export let description = '';
-  /** @type {string | undefined} */
-  export let back = undefined;
+  export let back: string | undefined = undefined;
 </script>
 
 <header>
diff --git a/src/lib/components/Icon.svelte b/src/lib/components/Icon.svelte
index b3d0847..7660f62 100644
--- a/src/lib/components/Icon.svelte
+++ b/src/lib/components/Icon.svelte
@@ -1,30 +1,28 @@
-<script>
+<script type="ts">
+  /** Class name for additional CSS styling */
   export let clazz = '';
   export { clazz as class };
+
+  /** Icon color. */
   export let color = 'currentColor';
 
-  /** @type {string} */
-  export let mdi;
+  /** Material Design Icons icon name */
+  export let mdi: string;
 
-  /** @type {number | string} */
-  export let size = 1;
+  /** Icon size. Numbers are treated as `<value>em`, strings as `<value>`. */
+  export let size: number | string = 1;
 
   let mdiOld = '';
   let path = '';
 
-  $: {
-    loadIcon(mdi);
-  }
+  $: loadIcon(mdi);
 
   $: width = size ? (typeof size === 'number' || !Number.isNaN(Number(size)) ? `${size}em` : size) : '1em';
 
-  /**
-	 * @param {string} mdi
-	 */
-  async function loadIcon(mdi) {
+  /** Load the icon from the `$lib/icons` folder. */
+  async function loadIcon(mdi: string) {
     if (mdi === mdiOld) return;
     path = (await import(`$lib/icons/${mdi}.js`)).default;
-    //path = icon.path;
   }
 </script>
 
diff --git a/src/lib/components/Photo.svelte b/src/lib/components/Photo.svelte
index 73beebf..86abc6f 100644
--- a/src/lib/components/Photo.svelte
+++ b/src/lib/components/Photo.svelte
@@ -1,43 +1,28 @@
-<script>
+<script type="ts">
 	import { strf } from "$lib/data/language";
 	import { getFileName } from "$lib/util/links";
 	import Icon from "./Icon.svelte";
 
-  /**
-   * The source of the image.
-   * @type {string}
-   */
-  export let src;
+  /** The source of the image. */
+  export let src: string;
 
-  /** @type {Album} */
-  export let album;
+  /** The album. */
+  export let album: Album;
 
-  /**
-   * The item.
-   * @type {Item}
-   */
-  export let item;
+  /** The item. */
+  export let item: Item;
 
-  /**
-   * Whether the image is the first one in the viewport.
-   * @type {boolean}
-   */
+  /** Whether the image is the first one in the viewport. */
   export let lazy = false;
 
-  /**
-   * The click handler for the image.
-   * @param {MouseEvent} event
-   */
-  async function clickHandler(event) {
+  /** The click handler for the image. */
+  async function clickHandler(event: MouseEvent) {
     event.preventDefault();
     console.log('click', event);
   }
 
-  /**
-   * The right click handler for the image.
-   * @param {MouseEvent} event
-   */
-  async function rightClickHandler(event) {
+  /** The right click handler for the image. */
+  async function rightClickHandler(event: MouseEvent) {
     event.preventDefault();
     console.log('right click', event);
   }
@@ -83,22 +68,24 @@
     height: fit-content;
     border-radius: 10px;
     overflow: hidden;
-    min-width: 30vw;
+    min-width: 28.125em
   }
 
   figure {
-    width: 30vw;
-    height: 20vw;
+    width: 28.125em;
+    height: 18.75em;
     background-color: rgba(0,0,0,.25);
-    background-image: var(--image);
+    background-image: linear-gradient(rgba(0,0,0,.125), rgba(0,0,0,.25)), var(--image);
     background-position: center;
     background-size: cover;
   }
 
   img {
-    width: 30vw;
-    height: 20vw;
+    position: absolute;
+    width: 28.125em;
+    height: 18.75em;
     object-fit: contain;
+    top: 0;
   }
 
   figcaption {
diff --git a/src/lib/data/album.js b/src/lib/data/album.ts
similarity index 100%
rename from src/lib/data/album.js
rename to src/lib/data/album.ts
diff --git a/src/lib/data/language.js b/src/lib/data/language.ts
similarity index 72%
rename from src/lib/data/language.js
rename to src/lib/data/language.ts
index ac28627..a841901 100644
--- a/src/lib/data/language.js
+++ b/src/lib/data/language.ts
@@ -1,12 +1,8 @@
-import { writable, derived } from "svelte/store";
+import { writable, derived, type Writable } from "svelte/store";
 
-/** @type {import('svelte/store').Writable<TranslationKey>} */
-export const language = writable('de');
+export const language: Writable<TranslationKey> = writable('de');
 
-/**
- * @type {Record<TranslationKey, Record<String, String>>}
- */
-const translations = {
+const translations: Record<TranslationKey, Record<string, string>> = {
   de: {
     'gallery': 'Galerie',
     'album': 'Album',
@@ -42,11 +38,7 @@ const translations = {
 };
 
 export const str = derived(language, $language => {
-  /**
-   * @param {string} key 
-   * @param  {...any} args
-   */
-  function translate(key, ...args) {
+  function translate(key: string, ...args: any[]) {
     const str = translations[$language][key];
     if (str === undefined) return key;
     return str.replace(/\{(\d+)\}/g, (_, i) => args[i]);
@@ -55,11 +47,7 @@ export const str = derived(language, $language => {
 });
 
 export const strf = derived(language, $language => {
-  /**
-   * @param {Translation | string} translations
-   * @param  {...any} args
-   */
-  function translate(translations, ...args) {
+  function translate(translations: Translation | string, ...args: any[]) {
     if (translations === undefined) return undefined;
     if (typeof translations === 'string') return translations;
     const str = translations[$language];
diff --git a/src/lib/icons/arrow-expand.js b/src/lib/icons/arrow-expand.js
deleted file mode 100644
index b489305..0000000
--- a/src/lib/icons/arrow-expand.js
+++ /dev/null
@@ -1,2 +0,0 @@
-const path = 'M10,21V19H6.41L10.91,14.5L9.5,13.09L5,17.59V14H3V21H10M14.5,10.91L19,6.41V10H21V3H14V5H17.59L13.09,9.5L14.5,10.91Z';
-export default path;
diff --git a/src/lib/icons/arrow-expand.ts b/src/lib/icons/arrow-expand.ts
new file mode 100644
index 0000000..0f8b18a
--- /dev/null
+++ b/src/lib/icons/arrow-expand.ts
@@ -0,0 +1 @@
+export default 'M10,21V19H6.41L10.91,14.5L9.5,13.09L5,17.59V14H3V21H10M14.5,10.91L19,6.41V10H21V3H14V5H17.59L13.09,9.5L14.5,10.91Z';
diff --git a/src/lib/icons/arrow-left.js b/src/lib/icons/arrow-left.js
deleted file mode 100644
index aa0c039..0000000
--- a/src/lib/icons/arrow-left.js
+++ /dev/null
@@ -1,2 +0,0 @@
-const path = 'M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z';
-export default path;
diff --git a/src/lib/icons/arrow-left.ts b/src/lib/icons/arrow-left.ts
new file mode 100644
index 0000000..baf0a41
--- /dev/null
+++ b/src/lib/icons/arrow-left.ts
@@ -0,0 +1 @@
+export default 'M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z';
diff --git a/src/lib/util/album.js b/src/lib/util/album.js
deleted file mode 100644
index ea09f24..0000000
--- a/src/lib/util/album.js
+++ /dev/null
@@ -1,103 +0,0 @@
-import { error } from "@sveltejs/kit";
-import StreamZip from "node-stream-zip";
-
-/** @param {string} zipName */
-async function _getZip(zipName) {
-  let zip = null;
-  try {
-    zip = new StreamZip.async({ file: `./zip/${zipName}` });
-  } catch (err) {
-    console.error(`${err.stack}`.replaceAll('/home/sveltekit', '.'));
-    throw error(404, `Album not found.`);
-  }
-  return zip;
-}
-/** @param {import('node-stream-zip').StreamZipAsync} zip @param {string} entryName */
-async function _getFile(zip, entryName) {
-  return await zip.entryData(entryName);
-}
-/** @param {import('node-stream-zip').StreamZipAsync} zip */
-async function _getMetadata(zip) {
-  const metadataContent = await _getFile(zip, 'album.json');
-  return JSON.parse(metadataContent.toString());
-}
-/** @param {import('node-stream-zip').StreamZipAsync} zip @param {boolean} keepOpen */
-async function _close(zip, keepOpen) {
-  if (!keepOpen)
-    await zip.close();
-}
-
-/**
- * 
- * @param {string} zipName 
- * @param {boolean} keepOpen
- * @returns {Promise<{album: Album, zip: import('node-stream-zip').StreamZipAsync}>}
- */
-export async function getMetadataOpen(zipName, keepOpen = true) {
-  const zip = await _getZip(zipName);
-  const album = await _getMetadata(zip);
-  await _close(zip, keepOpen);
-  return { album, zip };
-}
-
-/**
- * @param {string} zipName
- * @returns {Promise<Album>}
- */
-export async function getMetadata(zipName) {
-  return (await getMetadataOpen(zipName, false)).album;
-}
-
-/**
- * @param {string} zipName 
- * @param {string} entryName
- * @param {boolean} keepOpen
- * @returns {Promise<{album: Album, content: Buffer, zip: import('node-stream-zip').StreamZipAsync}>}
- */
-export async function getMetadataAndFileOpen(zipName, entryName, keepOpen = true) {
-  const zip = await _getZip(zipName);
-  const album = await _getMetadata(zip);
-  const content = await _getFile(zip, entryName);
-  await _close(zip, keepOpen);
-  return { album, content, zip };
-}
-
-/**
- * 
- * @param {string} zipName 
- * @param {string} entryName
- * @returns {Promise<{album: Album, content: Buffer}>}
- */
-export async function getMetadataAndFile(zipName, entryName) {
-  const { album, content } = await getMetadataAndFileOpen(zipName, entryName, false);
-  return { album, content };
-}
-
-/**
- * @param {string} zipName 
- * @param {string} entryName 
- * @param {boolean} keepOpen 
- * @returns {Promise<{content: Buffer, zip: import('node-stream-zip').StreamZipAsync}>}
- */
-export async function getFileOpen(zipName, entryName, keepOpen = true) {
-  const zip = await _getZip(zipName);
-  let content = null;
-  try {
-    console.log(`Getting ${entryName} from ${zipName}`);
-    content = await zip.entryData(entryName);
-  } catch (err) {
-    console.error(`${err.stack}`.replaceAll('/home/sveltekit', '.'));
-    throw error(404, `File ${entryName} not found.`);
-  }
-  await _close(zip, keepOpen);
-  return { content, zip };
-}
-
-/**
- * @param {string} zipName
- * @param {string} entryName
- * @returns {Promise<Buffer>}
- */
-export async function getFile(zipName, entryName) {
-  return (await getFileOpen(zipName, entryName, false)).content;
-}
diff --git a/src/lib/util/album.ts b/src/lib/util/album.ts
new file mode 100644
index 0000000..b9b0ff0
--- /dev/null
+++ b/src/lib/util/album.ts
@@ -0,0 +1,66 @@
+import { error } from "@sveltejs/kit";
+import StreamZip, { StreamZipAsync } from "node-stream-zip";
+
+async function _getZip(zipName: string) {
+  let zip = null;
+  try {
+    zip = new StreamZip.async({ file: `./zip/${zipName}` });
+  } catch (err: any) {
+    console.error(`${err.stack}`.replaceAll('/home/sveltekit', '.'));
+    throw error(404, `Album not found.`);
+  }
+  return zip;
+}
+async function _getFile(zip: StreamZipAsync, entryName: string) {
+  return await zip.entryData(entryName);
+}
+async function _getMetadata(zip: StreamZipAsync) {
+  const metadataContent = await _getFile(zip, 'album.json');
+  return JSON.parse(metadataContent.toString());
+}
+async function _close(zip: StreamZipAsync, keepOpen: boolean) {
+  if (!keepOpen)
+    await zip.close();
+}
+
+export async function getMetadataOpen(zipName: string, keepOpen = true): Promise<{ album: Album, zip: StreamZipAsync }> {
+  const zip = await _getZip(zipName);
+  const album = await _getMetadata(zip);
+  await _close(zip, keepOpen);
+  return { album, zip };
+}
+
+export async function getMetadata(zipName: string): Promise<Album> {
+  return (await getMetadataOpen(zipName, false)).album;
+}
+
+export async function getMetadataAndFileOpen(zipName: string, entryName: string, keepOpen = true): Promise<{ album: Album, content: Buffer, zip: StreamZipAsync }> {
+  const zip = await _getZip(zipName);
+  const album = await _getMetadata(zip);
+  const content = await _getFile(zip, entryName);
+  await _close(zip, keepOpen);
+  return { album, content, zip };
+}
+
+export async function getMetadataAndFile(zipName: string, entryName: string): Promise<{ album: Album, content: Buffer }> {
+  const { album, content } = await getMetadataAndFileOpen(zipName, entryName, false);
+  return { album, content };
+}
+
+export async function getFileOpen(zipName: string, entryName: string, keepOpen = true): Promise<{ content: Buffer, zip: StreamZipAsync }> {
+  const zip = await _getZip(zipName);
+  let content = null;
+  try {
+    console.log(`Getting ${entryName} from ${zipName}`);
+    content = await zip.entryData(entryName);
+  } catch (err: any) {
+    console.error(`${err.stack}`.replaceAll('/home/sveltekit', '.'));
+    throw error(404, `File ${entryName} not found.`);
+  }
+  await _close(zip, keepOpen);
+  return { content, zip };
+}
+
+export async function getFile(zipName: string, entryName: string): Promise<Buffer> {
+  return (await getFileOpen(zipName, entryName, false)).content;
+}
diff --git a/src/lib/util/links.js b/src/lib/util/links.js
deleted file mode 100644
index 48982a3..0000000
--- a/src/lib/util/links.js
+++ /dev/null
@@ -1,42 +0,0 @@
-/**
- * @param {string} str 
- * @returns {string}
- */
-export function safe(str) {
-  return str.replace(/[^\w.-]/gi, '');
-}
-
-/**
- * @param {string} str 
- * @returns {string}
- */
-export function getFileName(str) {
-  return safe(str.split('/').pop() || '');
-}
-
-/**
- * @param {string} str
- * @returns {string}
- */
-export function getFilePath(str) {
-  console.log(`getFilePath(${str})`);
-  return str.split('/').map(safe).join('/');
-}
-
-/**
- * @param {any} params 
- * @returns {string}
- */
-export function getZipName(params) {
-  const { slug, timestamp } = params;
-  return `${safe(slug)}${timestamp ? '-' + safe(timestamp) :''}.zip`;
-}
-
-/**
- * @param {any} params
- * @returns {string}
- */
-export function getAlbumUri(params) {
-  const { slug, timestamp } = params;
-  return `/g/${safe(slug)}${timestamp ? '/' + safe(timestamp) :''}`;
-}
diff --git a/src/lib/util/links.ts b/src/lib/util/links.ts
new file mode 100644
index 0000000..70222f6
--- /dev/null
+++ b/src/lib/util/links.ts
@@ -0,0 +1,22 @@
+export function safe(str: string): string {
+  return str.replace(/[^\w.-]/gi, '');
+}
+
+export function getFileName(str: string): string {
+  return safe(str.split('/').pop() || '');
+}
+
+export function getFilePath(str: string): string {
+  console.log(`getFilePath(${str})`);
+  return str.split('/').map(safe).join('/');
+}
+
+export function getZipName(params: any): string {
+  const { slug, timestamp } = params;
+  return `${safe(slug)}${timestamp ? '-' + safe(timestamp) :''}.zip`;
+}
+
+export function getAlbumUri(params: any): string {
+  const { slug, timestamp } = params;
+  return `/g/${safe(slug)}${timestamp ? '/' + safe(timestamp) :''}`;
+}
diff --git a/src/routes/+error.svelte b/src/routes/+error.svelte
index be786a2..dcc9e2d 100644
--- a/src/routes/+error.svelte
+++ b/src/routes/+error.svelte
@@ -1,4 +1,4 @@
-<script>
+<script type="ts">
   import { page } from '$app/stores';
 </script>
 
diff --git a/src/routes/+layout.svelte b/src/routes/+layout.svelte
index 460904f..7957360 100644
--- a/src/routes/+layout.svelte
+++ b/src/routes/+layout.svelte
@@ -1,4 +1,4 @@
-<script>
+<script type="ts">
   import "$lib/styles/base.css";
 </script>
 
diff --git a/src/routes/+page.svelte b/src/routes/+page.svelte
index 1fc8ebe..6779e89 100644
--- a/src/routes/+page.svelte
+++ b/src/routes/+page.svelte
@@ -1,4 +1,4 @@
-<script>
+<script type="ts">
 
 </script>
 
diff --git a/src/routes/[slug]/[[timestamp]]/+page.server.js b/src/routes/[slug]/[[timestamp]]/+page.server.ts
similarity index 68%
rename from src/routes/[slug]/[[timestamp]]/+page.server.js
rename to src/routes/[slug]/[[timestamp]]/+page.server.ts
index 6852e83..7f2ced1 100644
--- a/src/routes/[slug]/[[timestamp]]/+page.server.js
+++ b/src/routes/[slug]/[[timestamp]]/+page.server.ts
@@ -1,8 +1,8 @@
 import { getMetadata } from '$lib/util/album';
 import { getAlbumUri, getZipName } from '$lib/util/links';
+import type { PageServerLoad } from './$types';
 
-/** @type {import('./$types').PageLoad} */
-export async function load({ params }) {
+export const load: PageServerLoad = async ({ params }) => {
   const album = await getMetadata(getZipName(params));
   const base = getAlbumUri(params);
 
diff --git a/src/routes/[slug]/[[timestamp]]/+page.svelte b/src/routes/[slug]/[[timestamp]]/+page.svelte
index f949c58..a38d9ea 100644
--- a/src/routes/[slug]/[[timestamp]]/+page.svelte
+++ b/src/routes/[slug]/[[timestamp]]/+page.svelte
@@ -1,13 +1,11 @@
-<script>
+<script type="ts">
   import { strf } from '$lib/data/language.js';
 
   import Header from '$lib/components/Header.svelte';
   import Gallery from '$lib/components/Gallery.svelte';
+	import type { PageData } from './$types';
 
-  /** @type {import('./$types').PageData} */
-  export let data;
-
-  //const uriBase = `/s/apitest.php?slug=${data.slug}` + (data.timestamp ? `&timestamp=${data.timestamp}` : '');
+  export let data: PageData;
 </script>
 
 <Header title={$strf(data.album.title)}/>
diff --git a/src/routes/[slug]/[[timestamp]]/download/+server.js b/src/routes/[slug]/[[timestamp]]/download/+server.ts
similarity index 89%
rename from src/routes/[slug]/[[timestamp]]/download/+server.js
rename to src/routes/[slug]/[[timestamp]]/download/+server.ts
index 2547d86..b79febc 100644
--- a/src/routes/[slug]/[[timestamp]]/download/+server.js
+++ b/src/routes/[slug]/[[timestamp]]/download/+server.ts
@@ -2,9 +2,9 @@ import { getMetadata } from '$lib/util/album';
 import { getZipName } from '$lib/util/links';
 import { error } from '@sveltejs/kit';
 import fs from 'node:fs/promises';
+import type { RequestHandler } from './$types';
 
-/** @type {import('./$types').RequestHandler} */
-export async function GET({ params, url }) {
+export const GET: RequestHandler = async ({ params, url }) => {
   try {
     const zipName = getZipName(params);
     const album = await getMetadata(zipName);
diff --git a/src/routes/[slug]/[[timestamp]]/i/[...item]/+page.server.js b/src/routes/[slug]/[[timestamp]]/i/[...item]/+page.server.ts
similarity index 74%
rename from src/routes/[slug]/[[timestamp]]/i/[...item]/+page.server.js
rename to src/routes/[slug]/[[timestamp]]/i/[...item]/+page.server.ts
index bc30add..a1a3020 100644
--- a/src/routes/[slug]/[[timestamp]]/i/[...item]/+page.server.js
+++ b/src/routes/[slug]/[[timestamp]]/i/[...item]/+page.server.ts
@@ -1,8 +1,8 @@
 import { getMetadata } from '$lib/util/album';
-import { getFileName, getFilePath, getZipName } from '$lib/util/links.js';
+import { getFileName, getFilePath, getZipName } from '$lib/util/links';
+import type { PageServerLoad } from './$types';
 
-/** @type {import('./$types').PageLoad} */
-export async function load({ params }) {
+export const load: PageServerLoad = async ({ params }) => {
   const album = await getMetadata(getZipName(params));
   const filePath = getFilePath(params.item);
   const item = album.items.find(item => item.item === filePath);
diff --git a/src/routes/[slug]/[[timestamp]]/i/[...item]/+page.svelte b/src/routes/[slug]/[[timestamp]]/i/[...item]/+page.svelte
index 13fcbc6..a1382f0 100644
--- a/src/routes/[slug]/[[timestamp]]/i/[...item]/+page.svelte
+++ b/src/routes/[slug]/[[timestamp]]/i/[...item]/+page.svelte
@@ -1,8 +1,8 @@
-<script>
+<script type="ts">
 	import { strf } from '$lib/data/language';
+	import type { PageData } from './$types';
 
-  /** @type {import('./$types').PageData} */
-  export let data;
+  export let data: PageData;
 </script>
 
 <div class="container">
diff --git a/src/routes/[slug]/[[timestamp]]/i/[...item]/download/+server.js b/src/routes/[slug]/[[timestamp]]/i/[...item]/download/+server.ts
similarity index 90%
rename from src/routes/[slug]/[[timestamp]]/i/[...item]/download/+server.js
rename to src/routes/[slug]/[[timestamp]]/i/[...item]/download/+server.ts
index d5c2dc9..65538bd 100644
--- a/src/routes/[slug]/[[timestamp]]/i/[...item]/download/+server.js
+++ b/src/routes/[slug]/[[timestamp]]/i/[...item]/download/+server.ts
@@ -1,9 +1,9 @@
 import { getMetadataAndFile } from '$lib/util/album';
 import { getZipName, getFileName, getFilePath } from '$lib/util/links';
 import { error } from '@sveltejs/kit';
+import type { RequestHandler } from './$types';
 
-/** @type {import('./$types').RequestHandler} */
-export async function GET({ params }) {
+export const GET: RequestHandler = async ({ params }) => {
   try {
     const {album, content} = await getMetadataAndFile(getZipName(params), getFilePath(params.item));
     const allowDownload = album.allowDownload === false ? false : true;
diff --git a/src/routes/[slug]/[[timestamp]]/i/[...item]/t/[[width]]/+server.js b/src/routes/[slug]/[[timestamp]]/i/[...item]/t/[[width]]/+server.ts
similarity index 88%
rename from src/routes/[slug]/[[timestamp]]/i/[...item]/t/[[width]]/+server.js
rename to src/routes/[slug]/[[timestamp]]/i/[...item]/t/[[width]]/+server.ts
index 9ac6fb4..9b271bd 100644
--- a/src/routes/[slug]/[[timestamp]]/i/[...item]/t/[[width]]/+server.js
+++ b/src/routes/[slug]/[[timestamp]]/i/[...item]/t/[[width]]/+server.ts
@@ -2,9 +2,10 @@ import { getFile } from '$lib/util/album';
 import { getFileName, getFilePath, getZipName } from '$lib/util/links';
 import { error } from '@sveltejs/kit';
 import sharp from 'sharp';
+import type { RequestHandler } from './$types';
 
-/** @type {import('./$types').RequestHandler} */
-export async function GET({ params }) {
+/** @type {RequestHandler} */
+export const GET: RequestHandler = async ({ params }) => {
   let thumbnail = null;
   console.log(`Getting thumbnail for ${params}`);
   let width = 400;
@@ -24,7 +25,7 @@ export async function GET({ params }) {
       }
     }
     thumbnail = thumbnail || await sharp(content).resize(width).webp({ quality: 90 }).toBuffer();
-  } catch (err) {
+  } catch (err: any) {
     console.error(`${/** @type {Error} */(err).stack}`.replaceAll('/home/sveltekit', '.'));
     throw error(500, 'Error getting thumbnail');
   }
diff --git a/src/routes/[slug]/[[timestamp]]/random/+server.js b/src/routes/[slug]/[[timestamp]]/random/+server.ts
similarity index 83%
rename from src/routes/[slug]/[[timestamp]]/random/+server.js
rename to src/routes/[slug]/[[timestamp]]/random/+server.ts
index 35b23fe..5856dfc 100644
--- a/src/routes/[slug]/[[timestamp]]/random/+server.js
+++ b/src/routes/[slug]/[[timestamp]]/random/+server.ts
@@ -1,8 +1,9 @@
 import StreamZip from 'node-stream-zip';
 import sharp from 'sharp';
+import type { RequestHandler } from './$types';
 
-/** @type {import('./$types').RequestHandler} */
-export async function GET({ params }) {
+/** @type {RequestHandler} */
+export const GET: RequestHandler = async ({ params }) => {
 
   let entryData = null;
   try {
diff --git a/static/vime.svelte b/static/vime.svelte
index 7bc0647..89ad5a8 100644
--- a/static/vime.svelte
+++ b/static/vime.svelte
@@ -1,4 +1,4 @@
-<script>
+<script type="ts">
   import { Player, Video, DefaultUi } from '@vime/svelte';
 </script>
 
diff --git a/jsconfig.json b/tsconfig.json
similarity index 100%
rename from jsconfig.json
rename to tsconfig.json