diff --git a/bs/README.md b/bs/README.md
index 7bb265d..ab5c031 100644
--- a/bs/README.md
+++ b/bs/README.md
@@ -4,9 +4,6 @@ This project uses [jaandrle/bs: The simplest possible build system using executa
 ## Available executables
 If it makes sense, arguments are passed to internally used commands (e.g. `tsc`), e. g. `--help`.
 
-### bs/lint
-This lints the project using `tsc`.
-
 ### bs/test
 This lints the project and runs tests using `wtr`.
 
@@ -19,8 +16,17 @@ This builds the project using `rollup`.
 ### bs/analyze
 This analyze Custom Element manifest using the `@custom-elements-manifest/analyzer`.
 
+### bs/dev/assets
+Copies assets using `cp` into proper destination in `.tmp`.
+
+### bs/dev/tsc
+Builds typescript files using `tsc`.
+
+### bs/dev/lint
+Lints the project using `tsc`.
+
 ### bs/npm/lint
-Linted projects’ npm dependencies.
+Lints projects’ npm dependencies.
 
 ### bs/npm/update
 Updates projects’ npm dependencies.
diff --git a/bs/analyze b/bs/analyze
index 366e78a..9d55be5 100755
--- a/bs/analyze
+++ b/bs/analyze
@@ -5,8 +5,12 @@ set -eo pipefail # this can be harmful, see https://www.youtube.com/watch?v=4Jo3
 	exit 1;
 }
 # depends on
-declare -r app='src/app-cfpodcasts.ts'
-declare -r cem='node_modules/.bin/cem'
+declare -r app=(
+	'src/**/c-*.ts'
+	'src/**/app-*/index.ts'
+	'src/index.ts'
+)
+declare -r cem='node_modules/.bin/custom-elements-manifest'
 
 help(){
 	if ! isHelp "${@}"; then return 0; fi
@@ -17,7 +21,7 @@ help(){
 }
 main(){
 	help "${@}"
-	$cem analyze --litelement --globs "$app" "${@}"
+	$cem analyze --litelement --globs "${app[@]}" "${@}"
 }
 
 main "${@}"
diff --git a/bs/build b/bs/build
index 8b43cab..761ccad 100755
--- a/bs/build
+++ b/bs/build
@@ -5,7 +5,8 @@ set -eo pipefail # this can be harmful, see https://www.youtube.com/watch?v=4Jo3
 	exit 1;
 }
 # depends on
-declare -r lint='bs/lint'
+declare -r tsc='bs/dev/tsc'
+declare -r assets='bs/dev/assets'
 declare -r rollup='node_modules/.bin/rollup'
 declare -r analyze='bs/analyze'
 declare -r config='rollup.config.js'
@@ -21,7 +22,8 @@ help(){
 main(){
 	help "${@}"
 
-	$lint
+	$tsc
+	$assets
 	rm -rf "$dist"
 	$rollup -c $config "${@}"
 	$analyze --exclude "$dist"
diff --git a/bs/dev/assets b/bs/dev/assets
new file mode 100755
index 0000000..02647ac
--- /dev/null
+++ b/bs/dev/assets
@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+set -eo pipefail # this can be harmful, see https://www.youtube.com/watch?v=4Jo3Ml53kvc
+. bs/.common || {
+	echo 'Please run this script from the project root directory' >&2;
+	exit 1;
+}
+# depends on
+declare -r paths='bs/dev/paths.js'
+declare -r assets="$($paths 'src')/**/assets"
+declare -r target="$($paths 'tscoutput')"
+
+help(){
+	if ! isHelp "${@}"; then return 0; fi
+	echoReadmeInfo
+	echo
+	exit 0
+}
+main(){
+	help "${@}"
+	shopt -s globstar nullglob
+	for dir in $assets; do
+		cp -r "$dir" "$target/$dir"
+	done
+}
+
+main "${@}"
diff --git a/bs/lint b/bs/dev/lint
similarity index 75%
rename from bs/lint
rename to bs/dev/lint
index 37a0e9a..b5a3313 100755
--- a/bs/lint
+++ b/bs/dev/lint
@@ -6,21 +6,17 @@ set -eo pipefail # this can be harmful, see https://www.youtube.com/watch?v=4Jo3
 }
 # depends on
 declare -r tsc='node_modules/.bin/tsc'
-declare -r tscAlias='node_modules/.bin/tsc-alias'
 
 help(){
 	if ! isHelp "${@}"; then return 0; fi
 	echoReadmeInfo
 	echo
 	$tsc --help
-	$tscAlias --help
 	exit 0
 }
 main(){
 	help "${@}"
-	$tsc "${@}"
-	echo "$tscAlias ${@}"
-	$tscAlias "${@}"
+	$tsc --noEmit "${@}"
 }
 
 main "${@}"
diff --git a/bs/dev/paths.js b/bs/dev/paths.js
new file mode 100755
index 0000000..e56e4cf
--- /dev/null
+++ b/bs/dev/paths.js
@@ -0,0 +1,44 @@
+#!/bin/env node
+import tsconfig from "../../tsconfig.json" with { type: "json" };
+export const paths = {
+	/** code source */
+	src: "src",
+	/** code processed by tsc */
+	tscoutput: tsconfig.compilerOptions.outDir,
+	/** code processed by tsc and rollup */
+	dist: "dist",
+	/** tempral results of tsc, tests, … */
+	tmp: ".tmp",
+};
+export default paths;
+
+import { argv, exit } from "node:process";
+import { fileURLToPath } from "node:url";
+const [ _, script ] = argv;
+if (script === fileURLToPath(import.meta.url))
+	main(argv.slice(2));
+
+function main(args) {
+	if(args.includes("--help") || args.includes("-h")){
+		console.log(`
+Usage: ${script} [options]
+
+	Options:
+		[type] … if omitted, echo all
+`);
+		exit(0);
+	}
+	if(args.length === 0){
+		console.log(paths);
+		exit(0);
+	}
+	for(const arg of args){
+		const path = paths[arg];
+		if(!path){
+			console.error(`Unknown path: ${arg}`);
+			exit(1);
+		}
+		console.log(path);
+	}
+}
+
diff --git a/bs/dev/tsc b/bs/dev/tsc
new file mode 100755
index 0000000..f39ed9d
--- /dev/null
+++ b/bs/dev/tsc
@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+set -eo pipefail # this can be harmful, see https://www.youtube.com/watch?v=4Jo3Ml53kvc
+. bs/.common || {
+	echo 'Please run this script from the project root directory' >&2;
+	exit 1;
+}
+# depends on
+declare -r tsc='node_modules/.bin/tsc'
+declare -r tscAlias='node_modules/.bin/tsc-alias'
+
+help(){
+	if ! isHelp "${@}"; then return 0; fi
+	echoReadmeInfo
+	echo
+	$tsc --help
+	$tscAlias --help
+	exit 0
+}
+main(){
+	help "${@}"
+	$tsc "${@}"
+	$tscAlias "${@}"
+}
+
+main "${@}"
diff --git a/bs/start b/bs/start
index 71362e4..620c2a6 100755
--- a/bs/start
+++ b/bs/start
@@ -6,7 +6,9 @@ set -eo pipefail # this can be harmful, see https://www.youtube.com/watch?v=4Jo3
 }
 # depends on
 declare -r server='node_modules/.bin/web-dev-server'
-declare -r lint='bs/lint'
+declare -r lint='bs/dev/lint'
+declare -r tsc='bs/dev/tsc'
+declare -r assets='bs/dev/assets'
 declare -r server_config='web-dev-server.config.js'
 
 help(){
@@ -25,12 +27,14 @@ EOF
 main(){
 	help "${@}"
 
+	$lint
 	local -r target="${1:-./src}" # ./src or ./dist
 	if [[ "$target" =~ 'dist' ]]; then
 		# console warns because of config file, use npx serve?
 		$server "${@}"
 	else
-		$lint --watch --preserveWatchOutput &
+		$assets
+		$tsc --watch --preserveWatchOutput &
 		$server "${@}" &
 		wait
 	fi
diff --git a/bs/test b/bs/test
index c4a602b..1dd30d8 100755
--- a/bs/test
+++ b/bs/test
@@ -5,8 +5,8 @@ set -eo pipefail # this can be harmful, see https://www.youtube.com/watch?v=4Jo3
 	exit 1;
 }
 # depends on
-declare -r lint='bs/lint'
-declare -r wtr='node_modules/.bin/wtr'
+declare -r tsc='bs/dev/tsc'
+declare -r wtr='node_modules/.bin/web-test-runner'
 
 help(){
 	if ! isHelp "${@}"; then return 0; fi
@@ -20,12 +20,12 @@ EOF
 main(){
 	help "$1"
 	if [[ "$1" != "--watch" ]]; then
-		$lint
+		$tsc
 		$wtr "$@" --coverage
 		exit
 	fi
 
-	$lint --watch --preserveWatchOutput &
+	$tsc --watch --preserveWatchOutput &
 	$wtr "${*}" &
 	wait
 }
diff --git a/index.html b/index.html
index ec6ed8e..61afdad 100644
--- a/index.html
+++ b/index.html
@@ -5,7 +5,7 @@
 	<meta charset="utf-8">
 	<meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
 	<meta name="Description" content="Put your description here.">
-	<link rel="icon" type="image/svg+xml" href="./assets/logo.svg">
+	<link rel="icon" type="image/svg+xml" href="./.tmp/tsc/src/assets/logo.svg">
 	<base href="/">
 
 	<style>
@@ -23,7 +23,7 @@
 <body>
 	<app-cfpodcasts></app-cfpodcasts>
 
-	<script type="module" src="./out-tsc/src/index.js"></script>
+	<script type="module" src="./.tmp/tsc/src/index.js"></script>
 </body>
 
 </html>
diff --git a/rollup.config.js b/rollup.config.js
index 7f30547..e5044c8 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -4,8 +4,10 @@ import { rollupPluginHTML as html } from "@web/rollup-plugin-html";
 import { importMetaAssets } from "@web/rollup-plugin-import-meta-assets";
 import esbuild from "rollup-plugin-esbuild";
 import { generateSW } from "rollup-plugin-workbox";
+import { paths } from "./bs/dev/paths.js";
 import { join } from "node:path";
 
+const pathDist = join.bind(null, paths.dist);
 export default {
 	input: "index.html",
 	output: {
@@ -13,7 +15,7 @@ export default {
 		chunkFileNames: "[hash].js",
 		assetFileNames: "[hash][extname]",
 		format: "es",
-		dir: "dist",
+		dir: pathDist(),
 	},
 	preserveEntrySignatures: false,
 
@@ -22,7 +24,7 @@ export default {
 		html({
 			minify: true,
 			injectServiceWorker: true,
-			serviceWorkerPath: "dist/sw.js",
+			serviceWorkerPath: pathDist("sw.js"),
 		}),
 		/** Resolve bare module imports */
 		nodeResolve(),
@@ -59,9 +61,9 @@ export default {
 			globIgnores: ["polyfills/*.js", "nomodule-*.js"],
 			navigateFallback: "/index.html",
 			// where to output the generated sw
-			swDest: join("dist", "sw.js"),
+			swDest: pathDist("sw.js"),
 			// directory to match patterns against to be precached
-			globDirectory: join("dist"),
+			globDirectory: pathDist(),
 			// cache any html js and css by default
 			globPatterns: ["**/*.{html,js,css,webmanifest}"],
 			skipWaiting: true,
diff --git a/src/app-episodes/:id/routes.ts b/src/app-episodes/:id/routes.ts
index d5050af..aeefe05 100644
--- a/src/app-episodes/:id/routes.ts
+++ b/src/app-episodes/:id/routes.ts
@@ -1,10 +1,10 @@
 import { route } from "@/core/route.js";
 import { html } from "lit";
 
-export const path = "/episodes" as const;
+export const path = "/episodes/" as const;
 export const routes = route(
 	{
-		path: "/episodes/:id",
+		path: "/episodes/:id/",
 		async enter() {
 			await import("./index.js");
 			return true;
diff --git a/src/app-episodes/routes.ts b/src/app-episodes/routes.ts
index 9709619..8368ab8 100644
--- a/src/app-episodes/routes.ts
+++ b/src/app-episodes/routes.ts
@@ -2,7 +2,7 @@ import { route } from "@/core/route.js";
 import { routes as routeEpisode } from "./:id/routes.js";
 import { html } from "lit";
 
-export const path = "/episodes" as const;
+export const path = "/episodes/" as const;
 export const routes = route(
 	{
 		path,
diff --git a/src/app-home/index.css.ts b/src/app-home/index.css.ts
new file mode 100644
index 0000000..5c1060e
--- /dev/null
+++ b/src/app-home/index.css.ts
@@ -0,0 +1,9 @@
+import { css } from "lit";
+export const styles = css`
+	:host {
+		display: flex;
+		flex-direction: column;
+		align-items: center;
+		justify-content: flex-start;
+	}
+`;
diff --git a/src/app-home/index.test.ts b/src/app-home/index.test.ts
new file mode 100644
index 0000000..aee07ba
--- /dev/null
+++ b/src/app-home/index.test.ts
@@ -0,0 +1,22 @@
+import { html } from "lit";
+import { fixture, expect } from "@open-wc/testing";
+
+import type { AppHome } from "./index.js";
+import "./index.js";
+
+describe("AppHome", () => {
+	let element: AppHome;
+	beforeEach(async () => {
+		element = await fixture(html`<app-home></app-home>`);
+	});
+
+	it("renders a h1", () => {
+		const h1 = element.shadowRoot!.querySelector('h1')!;
+		expect(h1).to.exist;
+		expect(h1.textContent).to.equal('My app');
+	});
+
+	it("passes the a11y audit", async () => {
+		await expect(element).shadowDom.to.be.accessible();
+	});
+});
diff --git a/src/app-home/index.ts b/src/app-home/index.ts
new file mode 100644
index 0000000..71d6819
--- /dev/null
+++ b/src/app-home/index.ts
@@ -0,0 +1,15 @@
+import { LitElement, html } from "lit";
+import { customElement } from "lit/decorators.js";
+import { styles } from "./index.css.js";
+
+@customElement("app-home")
+export class AppHome extends LitElement {
+	static override styles = styles;
+	override render() {
+		return html`
+			<h1>My app</h1>
+			<p>Hello world</p>
+			<a href="/episodes">Episode</a>
+		`;
+	}
+}
diff --git a/src/app-home/routes.ts b/src/app-home/routes.ts
new file mode 100644
index 0000000..81b6ab0
--- /dev/null
+++ b/src/app-home/routes.ts
@@ -0,0 +1,16 @@
+import { route } from "@/core/route.js";
+import { html } from "lit";
+
+export const path = "/" as const;
+export const routes = route(
+	{
+		path,
+		async enter() {
+			await import("./index.js");
+			return true;
+		},
+		render(){
+			return html`<app-home></app-home>`;
+		},
+	},
+);
diff --git a/assets/logo.svg b/src/assets/logo.svg
similarity index 100%
rename from assets/logo.svg
rename to src/assets/logo.svg
diff --git a/src/core/route.ts b/src/core/route.ts
index b72d963..432f787 100644
--- a/src/core/route.ts
+++ b/src/core/route.ts
@@ -5,9 +5,11 @@ export function route(...routes: (PathRouteConfig|PathRouteConfig[])[]): PathRou
 		if (Array.isArray(route)) // already processed
 			return route;
 		const { path, ...rest }= route;
+		if (!path.endsWith("/"))
+			throw new Error("path must end with „/”!");
 		return [
 			{ path, ...rest },
-			{ path: path + "/", rest },
+			{ path: path.slice(0, -1), ...rest },
 		];
 	});
 }
diff --git a/src/index.test.ts b/src/index.test.ts
new file mode 100644
index 0000000..9bd0afb
--- /dev/null
+++ b/src/index.test.ts
@@ -0,0 +1,27 @@
+import { html } from "lit";
+import { fixture, expect } from "@open-wc/testing";
+
+import type { AppCfpodcasts } from "./index.js";
+import "./index.js";
+
+describe("App", () => {
+	let element: AppCfpodcasts;
+	let nav: HTMLElement;
+	beforeEach(async () => {
+		element = await fixture(html`<app-cfpodcasts></app-cfpodcasts>`);
+		nav = element.shadowRoot!.querySelector("nav")!;
+	});
+
+	it("renders <main>", () => {
+		const content = element.shadowRoot!.querySelector('main')!;
+		expect(content).to.exist;
+	});
+
+	it("has all pages", async () => {
+		const links = nav.querySelectorAll("a");
+		await expect(links.length).to.equal(2);
+	});
+	it("passes the a11y audit", async () => {
+		await expect(nav).shadowDom.to.be.accessible();
+	});
+});
diff --git a/src/index.ts b/src/index.ts
index dc15309..1d32119 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -3,16 +3,17 @@ import { customElement } from "lit/decorators.js";
 import { styles } from "./index.css.js";
 import { Router } from "@lit-labs/router";
 
+import * as routeHome from "./app-home/routes.js";
 import * as routeEpisodes from "./app-episodes/routes.js";
 
 import "./components/c-sronly.js";
-const logo = new URL("../../assets/logo.svg", import.meta.url);
+const logo = new URL("./assets/logo.svg", import.meta.url);
 
 @customElement("app-cfpodcasts")
 export class AppCfpodcasts extends LitElement {
 	static override styles = styles;
 	private _routes = new Router(this, [
-		{ path: "/", render: () => html`Hello world` },
+		...routeHome.routes,
 		...routeEpisodes.routes,
 	]);
 	override render() {
@@ -24,7 +25,7 @@ export class AppCfpodcasts extends LitElement {
 					href="${this._routes.link("/")}"
 					title="Home"
 					>
-					<img src=${logo} />
+					<img alt="" src=${logo} />
 					<c-sronly>Home</c-sronly>
 				</a>
 				<a
diff --git a/test/app-cfpodcasts.test.ts b/test/app-cfpodcasts.test.ts
deleted file mode 100644
index 8f9626b..0000000
--- a/test/app-cfpodcasts.test.ts
+++ /dev/null
@@ -1,22 +0,0 @@
-import { html } from 'lit';
-import { fixture, expect } from '@open-wc/testing';
-
-import type { AppCfpodcasts } from '../src/index.js';
-import '../src/index.js';
-
-describe('AppCfpodcasts', () => {
-  let element: AppCfpodcasts;
-  beforeEach(async () => {
-    element = await fixture(html`<app-cfpodcasts></app-cfpodcasts>`);
-  });
-
-  it('renders a h1', () => {
-    const h1 = element.shadowRoot!.querySelector('h1')!;
-    expect(h1).to.exist;
-    expect(h1.textContent).to.equal('My app');
-  });
-
-  it('passes the a11y audit', async () => {
-    await expect(element).shadowDom.to.be.accessible();
-  });
-});
diff --git a/tsconfig.json b/tsconfig.json
index 57314a7..908063d 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -26,7 +26,7 @@
 
 		"noErrorTruncation": false,
 
-		"outDir": "out-tsc",
+		"outDir": ".tmp/tsc",
 		"sourceMap": true,
 		"inlineSources": true,
 		"rootDir": "./",
diff --git a/web-dev-server.config.js b/web-dev-server.config.js
index a7d520f..73fc08c 100644
--- a/web-dev-server.config.js
+++ b/web-dev-server.config.js
@@ -3,14 +3,18 @@
 /** Use Hot Module replacement by adding --watch to the start command */
 //const hmr = process.argv.includes("--watch");
 const [ mode ] = process.argv.slice(2);
+import { paths } from "./bs/dev/paths.js";
+import { join } from "node:path";
+
+const pathDist = join.bind(null, paths.dist);
 const target = mode !== "dist" // OR "src"
 	? {
 		rootDir: ".",
-		appIndex: "./index.html",
+		appIndex: "index.html",
 	}
 	: {
-		rootDir: "./dist",
-		appIndex: "./dist/index.html",
+		rootDir: pathDist(),
+		appIndex: pathDist("index.html"),
 	};
 
 export default /** @type {import("@web/dev-server").DevServerConfig} */ ({
diff --git a/web-test-runner.config.js b/web-test-runner.config.js
index e198fad..6401f66 100644
--- a/web-test-runner.config.js
+++ b/web-test-runner.config.js
@@ -1,41 +1,47 @@
 // import { playwrightLauncher } from '@web/test-runner-playwright';
 
-const filteredLogs = ['Running in dev mode', 'Lit is in dev mode'];
+const filteredLogs = ["Running in dev mode", "Lit is in dev mode"];
+import { paths } from "./bs/dev/paths.js";
+import { join } from "node:path";
 
 export default /** @type {import("@web/test-runner").TestRunnerConfig} */ ({
-  /** Test files to run */
-  files: 'out-tsc/test/**/*.test.js',
+	/** Test files to run */
+	files: join(paths.tscoutput, "src/**/*.test.js"),
 
-  /** Resolve bare module imports */
-  nodeResolve: {
-    exportConditions: ['browser', 'development'],
-  },
+	/** Resolve bare module imports */
+	nodeResolve: {
+		exportConditions: ["browser", "development"],
+	},
 
-  /** Filter out lit dev mode logs */
-  filterBrowserLogs(log) {
-    for (const arg of log.args) {
-      if (typeof arg === 'string' && filteredLogs.some(l => arg.includes(l))) {
-        return false;
-      }
-    }
-    return true;
-  },
+	/** Filter out lit dev mode logs */
+	filterBrowserLogs(log) {
+		for (const arg of log.args) {
+			if (typeof arg === "string" && filteredLogs.some(l => arg.includes(l))) {
+				return false;
+			}
+		}
+		return true;
+	},
 
-  /** Compile JS for older browsers. Requires @web/dev-server-esbuild plugin */
-  // esbuildTarget: 'auto',
+	coverageConfig: {
+		reportDir: join(paths.tmp, "coverage"),
+	},
 
-  /** Amount of browsers to run concurrently */
-  // concurrentBrowsers: 2,
+	/** Compile JS for older browsers. Requires @web/dev-server-esbuild plugin */
+	// esbuildTarget: 'auto',
 
-  /** Amount of test files per browser to test concurrently */
-  // concurrency: 1,
+	/** Amount of browsers to run concurrently */
+	// concurrentBrowsers: 2,
 
-  /** Browsers to run tests on */
-  // browsers: [
-  //   playwrightLauncher({ product: 'chromium' }),
-  //   playwrightLauncher({ product: 'firefox' }),
-  //   playwrightLauncher({ product: 'webkit' }),
-  // ],
+	/** Amount of test files per browser to test concurrently */
+	// concurrency: 1,
 
-  // See documentation for all available options
+	/** Browsers to run tests on */
+	// browsers: [
+	//	 playwrightLauncher({ product: 'chromium' }),
+	//	 playwrightLauncher({ product: 'firefox' }),
+	//	 playwrightLauncher({ product: 'webkit' }),
+	// ],
+
+	// See documentation for all available options
 });