npm init svelte@next (w/o the README)

.eslintrc.cjs

@@ -0,0 +1,20 @@
+module.exports = {
+	root: true,
+	parser: '@typescript-eslint/parser',
+	extends: ['eslint:recommended', 'plugin:@typescript-eslint/recommended', 'prettier'],
+	plugins: ['svelte3', '@typescript-eslint'],
+	ignorePatterns: ['*.cjs'],
+	overrides: [{ files: ['*.svelte'], processor: 'svelte3/svelte3' }],
+	settings: {
+		'svelte3/typescript': () => require('typescript')
+	},
+	parserOptions: {
+		sourceType: 'module',
+		ecmaVersion: 2020
+	},
+	env: {
+		browser: true,
+		es2017: true,
+		node: true
+	}
+};

.gitignore

@@ -0,0 +1,10 @@
+.DS_Store
+node_modules
+/build
+/.svelte-kit
+/package
+.env
+.env.*
+!.env.example
+.vercel
+.output

.npmrc

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+engine-strict=true

.prettierrc

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+{
+	"useTabs": true,
+	"singleQuote": true,
+	"trailingComma": "none",
+	"printWidth": 100
+}

package.json

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+{
+  "name": "sveltekit-demo",
+  "version": "0.0.1",
+  "scripts": {
+    "dev": "svelte-kit dev",
+    "build": "svelte-kit build",
+    "package": "svelte-kit package",
+    "preview": "svelte-kit preview",
+    "check": "svelte-check --tsconfig ./tsconfig.json",
+    "check:watch": "svelte-check --tsconfig ./tsconfig.json --watch",
+    "lint": "prettier --ignore-path .gitignore --check --plugin-search-dir=. . && eslint --ignore-path .gitignore .",
+    "format": "prettier --ignore-path .gitignore --write --plugin-search-dir=. ."
+  },
+  "devDependencies": {
+    "@sveltejs/adapter-auto": "next",
+    "@sveltejs/kit": "next",
+    "@types/cookie": "^0.4.1",
+    "@typescript-eslint/eslint-plugin": "^4.31.1",
+    "@typescript-eslint/parser": "^4.31.1",
+    "eslint": "^7.32.0",
+    "eslint-config-prettier": "^8.3.0",
+    "eslint-plugin-svelte3": "^3.2.1",
+    "prettier": "^2.4.1",
+    "prettier-plugin-svelte": "^2.4.0",
+    "svelte": "^3.44.0",
+    "svelte-check": "^2.2.6",
+    "svelte-preprocess": "^4.9.4",
+    "tslib": "^2.3.1",
+    "typescript": "^4.4.3"
+  },
+  "type": "module",
+  "dependencies": {
+    "@fontsource/fira-mono": "^4.5.0",
+    "@lukeed/uuid": "^2.0.0",
+    "cookie": "^0.4.1"
+  }
+}

src/app.css

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+@import '@fontsource/fira-mono';
+
+:root {
+	font-family: Arial, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu,
+		Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
+	--font-mono: 'Fira Mono', monospace;
+	--pure-white: #ffffff;
+	--primary-color: #b9c6d2;
+	--secondary-color: #d0dde9;
+	--tertiary-color: #edf0f8;
+	--accent-color: #ff3e00;
+	--heading-color: rgba(0, 0, 0, 0.7);
+	--text-color: #444444;
+	--background-without-opacity: rgba(255, 255, 255, 0.7);
+	--column-width: 42rem;
+	--column-margin-top: 4rem;
+}
+
+body {
+	min-height: 100vh;
+	margin: 0;
+	background-color: var(--primary-color);
+	background: linear-gradient(
+		180deg,
+		var(--primary-color) 0%,
+		var(--secondary-color) 10.45%,
+		var(--tertiary-color) 41.35%
+	);
+}
+
+body::before {
+	content: '';
+	width: 80vw;
+	height: 100vh;
+	position: absolute;
+	top: 0;
+	left: 10vw;
+	z-index: -1;
+	background: radial-gradient(
+		50% 50% at 50% 50%,
+		var(--pure-white) 0%,
+		rgba(255, 255, 255, 0) 100%
+	);
+	opacity: 0.05;
+}
+
+#svelte {
+	min-height: 100vh;
+	display: flex;
+	flex-direction: column;
+}
+
+h1,
+h2,
+p {
+	font-weight: 400;
+	color: var(--heading-color);
+}
+
+p {
+	line-height: 1.5;
+}
+
+a {
+	color: var(--accent-color);
+	text-decoration: none;
+}
+
+a:hover {
+	text-decoration: underline;
+}
+
+h1 {
+	font-size: 2rem;
+	text-align: center;
+}
+
+h2 {
+	font-size: 1rem;
+}
+
+pre {
+	font-size: 16px;
+	font-family: var(--font-mono);
+	background-color: rgba(255, 255, 255, 0.45);
+	border-radius: 3px;
+	box-shadow: 2px 2px 6px rgb(255 255 255 / 25%);
+	padding: 0.5em;
+	overflow-x: auto;
+	color: var(--text-color);
+}
+
+input,
+button {
+	font-size: inherit;
+	font-family: inherit;
+}
+
+button:focus:not(:focus-visible) {
+	outline: none;
+}
+
+@media (min-width: 720px) {
+	h1 {
+		font-size: 2.4rem;
+	}
+}

src/app.html

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+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8" />
+		<meta name="description" content="Svelte demo app" />
+		<link rel="icon" href="/favicon.png" />
+		<meta name="viewport" content="width=device-width, initial-scale=1" />
+		%svelte.head%
+	</head>
+	<body>
+		<div id="svelte">%svelte.body%</div>
+	</body>
+</html>

src/global.d.ts

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+/// <reference types="@sveltejs/kit" />

src/hooks.ts

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+import cookie from 'cookie';
+import { v4 as uuid } from '@lukeed/uuid';
+import type { Handle } from '@sveltejs/kit';
+
+export const handle: Handle = async ({ request, resolve }) => {
+	const cookies = cookie.parse(request.headers.cookie || '');
+	request.locals.userid = cookies.userid || uuid();
+
+	// TODO https://github.com/sveltejs/kit/issues/1046
+	const method = request.url.searchParams.get('_method');
+	if (method) {
+		request.method = method.toUpperCase();
+	}
+
+	const response = await resolve(request);
+
+	if (!cookies.userid) {
+		// if this is the first time the user has visited this app,
+		// set a cookie so that we recognise them when they return
+		response.headers['set-cookie'] = cookie.serialize('userid', request.locals.userid, {
+			path: '/',
+			httpOnly: true
+		});
+	}
+
+	return response;
+};

src/lib/Counter.svelte

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+<script lang="ts">
+	import { spring } from 'svelte/motion';
+
+	let count = 0;
+
+	const displayed_count = spring();
+	$: displayed_count.set(count);
+	$: offset = modulo($displayed_count, 1);
+
+	function modulo(n: number, m: number) {
+		// handle negative numbers
+		return ((n % m) + m) % m;
+	}
+</script>
+
+<div class="counter">
+	<button on:click={() => (count -= 1)} aria-label="Decrease the counter by one">
+		<svg aria-hidden="true" viewBox="0 0 1 1">
+			<path d="M0,0.5 L1,0.5" />
+		</svg>
+	</button>
+
+	<div class="counter-viewport">
+		<div class="counter-digits" style="transform: translate(0, {100 * offset}%)">
+			<strong style="top: -100%" aria-hidden="true">{Math.floor($displayed_count + 1)}</strong>
+			<strong>{Math.floor($displayed_count)}</strong>
+		</div>
+	</div>
+
+	<button on:click={() => (count += 1)} aria-label="Increase the counter by one">
+		<svg aria-hidden="true" viewBox="0 0 1 1">
+			<path d="M0,0.5 L1,0.5 M0.5,0 L0.5,1" />
+		</svg>
+	</button>
+</div>
+
+<style>
+	.counter {
+		display: flex;
+		border-top: 1px solid rgba(0, 0, 0, 0.1);
+		border-bottom: 1px solid rgba(0, 0, 0, 0.1);
+		margin: 1rem 0;
+	}
+
+	.counter button {
+		width: 2em;
+		padding: 0;
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		border: 0;
+		background-color: transparent;
+		color: var(--text-color);
+		font-size: 2rem;
+	}
+
+	.counter button:hover {
+		background-color: var(--secondary-color);
+	}
+
+	svg {
+		width: 25%;
+		height: 25%;
+	}
+
+	path {
+		vector-effect: non-scaling-stroke;
+		stroke-width: 2px;
+		stroke: var(--text-color);
+	}
+
+	.counter-viewport {
+		width: 8em;
+		height: 4em;
+		overflow: hidden;
+		text-align: center;
+		position: relative;
+	}
+
+	.counter-viewport strong {
+		position: absolute;
+		display: flex;
+		width: 100%;
+		height: 100%;
+		font-weight: 400;
+		color: var(--accent-color);
+		font-size: 4rem;
+		align-items: center;
+		justify-content: center;
+	}
+
+	.counter-digits {
+		position: absolute;
+		width: 100%;
+		height: 100%;
+	}
+</style>

src/lib/form.ts

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+// this action (https://svelte.dev/tutorial/actions) allows us to
+// progressively enhance a <form> that already works without JS
+export function enhance(
+	form: HTMLFormElement,
+	{
+		pending,
+		error,
+		result
+	}: {
+		pending?: (data: FormData, form: HTMLFormElement) => void;
+		error?: (res: Response | null, error: Error | null, form: HTMLFormElement) => void;
+		result: (res: Response, form: HTMLFormElement) => void;
+	}
+): { destroy: () => void } {
+	let current_token: unknown;
+
+	async function handle_submit(e: Event) {
+		const token = (current_token = {});
+
+		e.preventDefault();
+
+		const body = new FormData(form);
+
+		if (pending) pending(body, form);
+
+		try {
+			const res = await fetch(form.action, {
+				method: form.method,
+				headers: {
+					accept: 'application/json'
+				},
+				body
+			});
+
+			if (token !== current_token) return;
+
+			if (res.ok) {
+				result(res, form);
+			} else if (error) {
+				error(res, null, form);
+			} else {
+				console.error(await res.text());
+			}
+		} catch (e: any) {
+			if (error) {
+				error(null, e, form);
+			} else {
+				throw e;
+			}
+		}
+	}
+
+	form.addEventListener('submit', handle_submit);
+
+	return {
+		destroy() {
+			form.removeEventListener('submit', handle_submit);
+		}
+	};
+}

src/lib/header/Header.svelte

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+<script lang="ts">
+	import { page } from '$app/stores';
+	import logo from './svelte-logo.svg';
+</script>
+
+<header>
+	<div class="corner">
+		<a href="https://kit.svelte.dev">
+			<img src={logo} alt="SvelteKit" />
+		</a>
+	</div>
+
+	<nav>
+		<svg viewBox="0 0 2 3" aria-hidden="true">
+			<path d="M0,0 L1,2 C1.5,3 1.5,3 2,3 L2,0 Z" />
+		</svg>
+		<ul>
+			<li class:active={$page.url.pathname === '/'}><a sveltekit:prefetch href="/">Home</a></li>
+			<li class:active={$page.url.pathname === '/about'}>
+				<a sveltekit:prefetch href="/about">About</a>
+			</li>
+			<li class:active={$page.url.pathname === '/todos'}>
+				<a sveltekit:prefetch href="/todos">Todos</a>
+			</li>
+		</ul>
+		<svg viewBox="0 0 2 3" aria-hidden="true">
+			<path d="M0,0 L0,3 C0.5,3 0.5,3 1,2 L2,0 Z" />
+		</svg>
+	</nav>
+
+	<div class="corner">
+		<!-- TODO put something else here? github link? -->
+	</div>
+</header>
+
+<style>
+	header {
+		display: flex;
+		justify-content: space-between;
+	}
+
+	.corner {
+		width: 3em;
+		height: 3em;
+	}
+
+	.corner a {
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		width: 100%;
+		height: 100%;
+	}
+
+	.corner img {
+		width: 2em;
+		height: 2em;
+		object-fit: contain;
+	}
+
+	nav {
+		display: flex;
+		justify-content: center;
+		--background: rgba(255, 255, 255, 0.7);
+	}
+
+	svg {
+		width: 2em;
+		height: 3em;
+		display: block;
+	}
+
+	path {
+		fill: var(--background);
+	}
+
+	ul {
+		position: relative;
+		padding: 0;
+		margin: 0;
+		height: 3em;
+		display: flex;
+		justify-content: center;
+		align-items: center;
+		list-style: none;
+		background: var(--background);
+		background-size: contain;
+	}
+
+	li {
+		position: relative;
+		height: 100%;
+	}
+
+	li.active::before {
+		--size: 6px;
+		content: '';
+		width: 0;
+		height: 0;
+		position: absolute;
+		top: 0;
+		left: calc(50% - var(--size));
+		border: var(--size) solid transparent;
+		border-top: var(--size) solid var(--accent-color);
+	}
+
+	nav a {
+		display: flex;
+		height: 100%;
+		align-items: center;
+		padding: 0 1em;
+		color: var(--heading-color);
+		font-weight: 700;
+		font-size: 0.8rem;
+		text-transform: uppercase;
+		letter-spacing: 0.1em;
+		text-decoration: none;
+		transition: color 0.2s linear;
+	}
+
+	a:hover {
+		color: var(--accent-color);
+	}
+</style>

src/lib/types.d.ts

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+/**
+ * Can be made globally available by placing this
+ * inside `global.d.ts` and removing `export` keyword
+ */
+export interface Locals {
+	userid: string;
+}

src/routes/__layout.svelte

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+<script lang="ts">
+	import Header from '$lib/header/Header.svelte';
+	import '../app.css';
+</script>
+
+<Header />
+
+<main>
+	<slot />
+</main>
+
+<footer>
+	<p>visit <a href="https://kit.svelte.dev">kit.svelte.dev</a> to learn SvelteKit</p>
+</footer>
+
+<style>
+	main {
+		flex: 1;
+		display: flex;
+		flex-direction: column;
+		padding: 1rem;
+		width: 100%;
+		max-width: 1024px;
+		margin: 0 auto;
+		box-sizing: border-box;
+	}
+
+	footer {
+		display: flex;
+		flex-direction: column;
+		justify-content: center;
+		align-items: center;
+		padding: 40px;
+	}
+
+	footer a {
+		font-weight: bold;
+	}
+
+	@media (min-width: 480px) {
+		footer {
+			padding: 40px 0;
+		}
+	}
+</style>

src/routes/about.svelte

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+<script context="module">
+	import { browser, dev } from '$app/env';
+
+	// we don't need any JS on this page, though we'll load
+	// it in dev so that we get hot module replacement...
+	export const hydrate = dev;
+
+	// ...but if the client-side router is already loaded
+	// (i.e. we came here from elsewhere in the app), use it
+	export const router = browser;
+
+	// since there's no dynamic data here, we can prerender
+	// it so that it gets served as a static asset in prod
+	export const prerender = true;
+</script>
+
+<svelte:head>
+	<title>About</title>
+</svelte:head>
+
+<div class="content">
+	<h1>About this app</h1>
+
+	<p>
+		This is a <a href="https://kit.svelte.dev">SvelteKit</a> app. You can make your own by typing the
+		following into your command line and following the prompts:
+	</p>
+
+	<!-- TODO lose the @next! -->
+	<pre>npm init svelte@next</pre>
+
+	<p>
+		The page you're looking at is purely static HTML, with no client-side interactivity needed.
+		Because of that, we don't need to load any JavaScript. Try viewing the page's source, or opening
+		the devtools network panel and reloading.
+	</p>
+
+	<p>
+		The <a href="/todos">TODOs</a> page illustrates SvelteKit's data loading and form handling. Try using
+		it with JavaScript disabled!
+	</p>
+</div>
+
+<style>
+	.content {
+		width: 100%;
+		max-width: var(--column-width);
+		margin: var(--column-margin-top) auto 0 auto;
+	}
+</style>

src/routes/index.svelte

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+<script context="module" lang="ts">
+	export const prerender = true;
+</script>
+
+<script lang="ts">
+	import Counter from '$lib/Counter.svelte';
+</script>
+
+<svelte:head>
+	<title>Home</title>
+</svelte:head>
+
+<section>
+	<h1>
+		<div class="welcome">
+			<picture>
+				<source srcset="svelte-welcome.webp" type="image/webp" />
+				<img src="svelte-welcome.png" alt="Welcome" />
+			</picture>
+		</div>
+
+		to your new<br />SvelteKit app
+	</h1>
+
+	<h2>
+		try editing <strong>src/routes/index.svelte</strong>
+	</h2>
+
+	<Counter />
+</section>
+
+<style>
+	section {
+		display: flex;
+		flex-direction: column;
+		justify-content: center;
+		align-items: center;
+		flex: 1;
+	}
+
+	h1 {
+		width: 100%;
+	}
+
+	.welcome {
+		position: relative;
+		width: 100%;
+		height: 0;
+		padding: 0 0 calc(100% * 495 / 2048) 0;
+	}
+
+	.welcome img {
+		position: absolute;
+		width: 100%;
+		height: 100%;
+		top: 0;
+		display: block;
+	}
+</style>

src/routes/todos/[uid].json.ts

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+import { api } from './_api';
+import type { RequestHandler } from '@sveltejs/kit';
+import type { Locals } from '$lib/types';
+
+// PATCH /todos/:uid.json
+export const patch: RequestHandler<Locals, FormData> = async (request) => {
+	return api(request, `todos/${request.locals.userid}/${request.params.uid}`, {
+		text: request.body.get('text'),
+		done: request.body.has('done') ? !!request.body.get('done') : undefined
+	});
+};
+
+// DELETE /todos/:uid.json
+export const del: RequestHandler<Locals> = async (request) => {
+	return api(request, `todos/${request.locals.userid}/${request.params.uid}`);
+};

src/routes/todos/_api.ts

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+import type { EndpointOutput, Request } from '@sveltejs/kit';
+import type { Locals } from '$lib/types';
+
+/*
+	This module is used by the /todos.json and /todos/[uid].json
+	endpoints to make calls to api.svelte.dev, which stores todos
+	for each user. The leading underscore indicates that this is
+	a private module, _not_ an endpoint — visiting /todos/_api
+	will net you a 404 response.
+
+	(The data on the todo app will expire periodically; no
+	guarantees are made. Don't use it to organise your life.)
+*/
+
+const base = 'https://api.svelte.dev';
+
+export async function api(
+	request: Request<Locals>,
+	resource: string,
+	data?: Record<string, unknown>
+): Promise<EndpointOutput> {
+	// user must have a cookie set
+	if (!request.locals.userid) {
+		return { status: 401 };
+	}
+
+	const res = await fetch(`${base}/${resource}`, {
+		method: request.method,
+		headers: {
+			'content-type': 'application/json'
+		},
+		body: data && JSON.stringify(data)
+	});
+
+	// if the request came from a <form> submission, the browser's default
+	// behaviour is to show the URL corresponding to the form's "action"
+	// attribute. in those cases, we want to redirect them back to the
+	// /todos page, rather than showing the response
+	if (res.ok && request.method !== 'GET' && request.headers.accept !== 'application/json') {
+		return {
+			status: 303,
+			headers: {
+				location: '/todos'
+			}
+		};
+	}
+
+	return {
+		status: res.status,
+		body: await res.json()
+	};
+}

src/routes/todos/index.json.ts

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+import { api } from './_api';
+import type { RequestHandler } from '@sveltejs/kit';
+import type { Locals } from '$lib/types';
+
+// GET /todos.json
+export const get: RequestHandler<Locals> = async (request) => {
+	// request.locals.userid comes from src/hooks.js
+	const response = await api(request, `todos/${request.locals.userid}`);
+
+	if (response.status === 404) {
+		// user hasn't created a todo list.
+		// start with an empty array
+		return { body: [] };
+	}
+
+	return response;
+};
+
+// POST /todos.json
+export const post: RequestHandler<Locals, FormData> = async (request) => {
+	const response = await api(request, `todos/${request.locals.userid}`, {
+		// because index.svelte posts a FormData object,
+		// request.body is _also_ a (readonly) FormData
+		// object, which allows us to get form data
+		// with the `body.get(key)` method
+		text: request.body.get('text')
+	});
+
+	return response;
+};

src/routes/todos/index.svelte

@@ -0,0 +1,229 @@
+<script context="module" lang="ts">
+	import { enhance } from '$lib/form';
+	import type { Load } from '@sveltejs/kit';
+
+	// see https://kit.svelte.dev/docs#loading
+	export const load: Load = async ({ fetch }) => {
+		const res = await fetch('/todos.json');
+
+		if (res.ok) {
+			const todos = await res.json();
+
+			return {
+				props: { todos }
+			};
+		}
+
+		const { message } = await res.json();
+
+		return {
+			error: new Error(message)
+		};
+	};
+</script>
+
+<script lang="ts">
+	import { scale } from 'svelte/transition';
+	import { flip } from 'svelte/animate';
+
+	type Todo = {
+		uid: string;
+		created_at: Date;
+		text: string;
+		done: boolean;
+		pending_delete: boolean;
+	};
+
+	export let todos: Todo[];
+
+	async function patch(res: Response) {
+		const todo = await res.json();
+
+		todos = todos.map((t) => {
+			if (t.uid === todo.uid) return todo;
+			return t;
+		});
+	}
+</script>
+
+<svelte:head>
+	<title>Todos</title>
+</svelte:head>
+
+<div class="todos">
+	<h1>Todos</h1>
+
+	<form
+		class="new"
+		action="/todos.json"
+		method="post"
+		use:enhance={{
+			result: async (res, form) => {
+				const created = await res.json();
+				todos = [...todos, created];
+
+				form.reset();
+			}
+		}}
+	>
+		<input name="text" aria-label="Add todo" placeholder="+ tap to add a todo" />
+	</form>
+
+	{#each todos as todo (todo.uid)}
+		<div
+			class="todo"
+			class:done={todo.done}
+			transition:scale|local={{ start: 0.7 }}
+			animate:flip={{ duration: 200 }}
+		>
+			<form
+				action="/todos/{todo.uid}.json?_method=patch"
+				method="post"
+				use:enhance={{
+					pending: (data) => {
+						todo.done = !!data.get('done');
+					},
+					result: patch
+				}}
+			>
+				<input type="hidden" name="done" value={todo.done ? '' : 'true'} />
+				<button class="toggle" aria-label="Mark todo as {todo.done ? 'not done' : 'done'}" />
+			</form>
+
+			<form
+				class="text"
+				action="/todos/{todo.uid}.json?_method=patch"
+				method="post"
+				use:enhance={{
+					result: patch
+				}}
+			>
+				<input aria-label="Edit todo" type="text" name="text" value={todo.text} />
+				<button class="save" aria-label="Save todo" />
+			</form>
+
+			<form
+				action="/todos/{todo.uid}.json?_method=delete"
+				method="post"
+				use:enhance={{
+					pending: () => (todo.pending_delete = true),
+					result: () => {
+						todos = todos.filter((t) => t.uid !== todo.uid);
+					}
+				}}
+			>
+				<button class="delete" aria-label="Delete todo" disabled={todo.pending_delete} />
+			</form>
+		</div>
+	{/each}
+</div>
+
+<style>
+	.todos {
+		width: 100%;
+		max-width: var(--column-width);
+		margin: var(--column-margin-top) auto 0 auto;
+		line-height: 1;
+	}
+
+	.new {
+		margin: 0 0 0.5rem 0;
+	}
+
+	input {
+		border: 1px solid transparent;
+	}
+
+	input:focus-visible {
+		box-shadow: inset 1px 1px 6px rgba(0, 0, 0, 0.1);
+		border: 1px solid #ff3e00 !important;
+		outline: none;
+	}
+
+	.new input {
+		font-size: 28px;
+		width: 100%;
+		padding: 0.5em 1em 0.3em 1em;
+		box-sizing: border-box;
+		background: rgba(255, 255, 255, 0.05);
+		border-radius: 8px;
+		text-align: center;
+	}
+
+	.todo {
+		display: grid;
+		grid-template-columns: 2rem 1fr 2rem;
+		grid-gap: 0.5rem;
+		align-items: center;
+		margin: 0 0 0.5rem 0;
+		padding: 0.5rem;
+		background-color: white;
+		border-radius: 8px;
+		filter: drop-shadow(2px 4px 6px rgba(0, 0, 0, 0.1));
+		transform: translate(-1px, -1px);
+		transition: filter 0.2s, transform 0.2s;
+	}
+
+	.done {
+		transform: none;
+		opacity: 0.4;
+		filter: drop-shadow(0px 0px 1px rgba(0, 0, 0, 0.1));
+	}
+
+	form.text {
+		position: relative;
+		display: flex;
+		align-items: center;
+		flex: 1;
+	}
+
+	.todo input {
+		flex: 1;
+		padding: 0.5em 2em 0.5em 0.8em;
+		border-radius: 3px;
+	}
+
+	.todo button {
+		width: 2em;
+		height: 2em;
+		border: none;
+		background-color: transparent;
+		background-position: 50% 50%;
+		background-repeat: no-repeat;
+	}
+
+	button.toggle {
+		border: 1px solid rgba(0, 0, 0, 0.2);
+		border-radius: 50%;
+		box-sizing: border-box;
+		background-size: 1em auto;
+	}
+
+	.done .toggle {
+		background-image: url("data:image/svg+xml,%3Csvg width='22' height='16' viewBox='0 0 22 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20.5 1.5L7.4375 14.5L1.5 8.5909' stroke='%23676778' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+	}
+
+	.delete {
+		background-image: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M4.5 5V22H19.5V5H4.5Z' fill='%23676778' stroke='%23676778' stroke-width='1.5' stroke-linejoin='round'/%3E%3Cpath d='M10 10V16.5' stroke='white' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3Cpath d='M14 10V16.5' stroke='white' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3Cpath d='M2 5H22' stroke='%23676778' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3Cpath d='M8 5L9.6445 2H14.3885L16 5H8Z' fill='%23676778' stroke='%23676778' stroke-width='1.5' stroke-linejoin='round'/%3E%3C/svg%3E%0A");
+		opacity: 0.2;
+	}
+
+	.delete:hover,
+	.delete:focus {
+		transition: opacity 0.2s;
+		opacity: 1;
+	}
+
+	.save {
+		position: absolute;
+		right: 0;
+		opacity: 0;
+		background-image: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20.5 2H3.5C2.67158 2 2 2.67157 2 3.5V20.5C2 21.3284 2.67158 22 3.5 22H20.5C21.3284 22 22 21.3284 22 20.5V3.5C22 2.67157 21.3284 2 20.5 2Z' fill='%23676778' stroke='%23676778' stroke-width='1.5' stroke-linejoin='round'/%3E%3Cpath d='M17 2V11H7.5V2H17Z' fill='white' stroke='white' stroke-width='1.5' stroke-linejoin='round'/%3E%3Cpath d='M13.5 5.5V7.5' stroke='%23676778' stroke-width='1.5' stroke-linecap='round'/%3E%3Cpath d='M5.99844 2H18.4992' stroke='%23676778' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E%0A");
+	}
+
+	.todo input:focus + .save,
+	.save:focus {
+		transition: opacity 0.2s;
+		opacity: 1;
+	}
+</style>

static/robots.txt

@@ -0,0 +1,3 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow:

svelte.config.js

@@ -0,0 +1,18 @@
+import adapter from '@sveltejs/adapter-auto';
+import preprocess from 'svelte-preprocess';
+
+/** @type {import('@sveltejs/kit').Config} */
+const config = {
+	// Consult https://github.com/sveltejs/svelte-preprocess
+	// for more information about preprocessors
+	preprocess: preprocess(),
+
+	kit: {
+		adapter: adapter(),
+
+		// hydrate the <div id="svelte"> element in src/app.html
+		target: '#svelte'
+	}
+};
+
+export default config;

tsconfig.json

@@ -0,0 +1,31 @@
+{
+	"compilerOptions": {
+		"moduleResolution": "node",
+		"module": "es2020",
+		"lib": ["es2020", "DOM"],
+		"target": "es2020",
+		/**
+			svelte-preprocess cannot figure out whether you have a value or a type, so tell TypeScript
+			to enforce using \`import type\` instead of \`import\` for Types.
+			*/
+		"importsNotUsedAsValues": "error",
+		"isolatedModules": true,
+		"resolveJsonModule": true,
+		/**
+			To have warnings/errors of the Svelte compiler at the correct position,
+			enable source maps by default.
+			*/
+		"sourceMap": true,
+		"esModuleInterop": true,
+		"skipLibCheck": true,
+		"forceConsistentCasingInFileNames": true,
+		"baseUrl": ".",
+		"allowJs": true,
+		"checkJs": true,
+		"paths": {
+			"$lib": ["src/lib"],
+			"$lib/*": ["src/lib/*"]
+		}
+	},
+	"include": ["src/**/*.d.ts", "src/**/*.js", "src/**/*.ts", "src/**/*.svelte"]
+}