Add preferences and privacy policy

src/lib/components/ui/cards/NearbyStationsCard.svelte

@@ -2,6 +2,8 @@
 	import BaseCard from '$lib/components/ui/cards/BaseCard.svelte';
 	import Button from '$lib/components/ui/form-elements/Button.svelte';
 
+	import { prefs } from '$lib/preferences.svelte';
+
 	import { fade } from 'svelte/transition';
 	import { flip } from 'svelte/animate';
 
@@ -12,7 +14,9 @@
 
 <BaseCard header={'Nearby Stations'}>
 	<div class="card-content">
-		{#if nearestStationsState.error && nearestStationsState.list.length === 0}
+		{#if !prefs.current.NearToMe}
+			<Button onclick={() => prefs.toggleLocation(true)}>Enable Location</Button>
+		{:else if nearestStationsState.error && nearestStationsState.list.length === 0}
 			<p class="msg">{nearestStationsState.error}</p>
 		{:else if nearestStationsState.loading && nearestStationsState.list.length === 0}
 			<p class="msg">Locating stations...</p>

src/lib/components/ui/form-elements/Toggle.svelte

@@ -0,0 +1,112 @@
+<script lang="ts">
+	interface Props {
+		checked: boolean;
+		id: string;
+		label: string;
+		disabled?: boolean;
+		onchange?: (checked: boolean) => void;
+	}
+
+	let { checked = $bindable(false), id, label, disabled = false, onchange }: Props = $props();
+
+	function handleInput(e: Event) {
+		const target = e.target as HTMLInputElement;
+		checked = target.checked;
+		onchange?.(checked);
+	}
+</script>
+
+<div class="toggle-wrapper" class:is-disabled={disabled}>
+	<!-- 1. Interactive Switch Mechanism (Sits Left) -->
+	<div class="toggle-control">
+		<input type="checkbox" {id} {disabled} {checked} onchange={handleInput} class="toggle-input" />
+		<label for={id} class="toggle-track">
+			<span class="toggle-thumb"></span>
+		</label>
+	</div>
+
+	<!-- 2. Visible Text Label (Sits Right) -->
+	<label for={id} class="toggle-label-text">
+		{label}
+	</label>
+</div>
+
+<style>
+	.toggle-wrapper {
+		display: flex;
+		align-items: center;
+		justify-content: flex-start;
+		gap: 1.75rem;
+		width: 100%;
+	}
+
+	.toggle-control {
+		position: relative;
+		display: inline-flex;
+		align-items: center;
+	}
+
+	.toggle-input {
+		position: absolute;
+		width: 1px;
+		height: 1px;
+		padding: 0;
+		margin: -1px;
+		overflow: hidden;
+		clip: rect(0, 0, 0, 0);
+		border: 0;
+	}
+
+	.toggle-track {
+		position: relative;
+		display: inline-block;
+		width: 3.75rem;
+		height: 2rem;
+		background-color: rgb(93, 45, 45);
+		border-radius: 1rem;
+		cursor: pointer;
+		transition: background-color 0.2s ease;
+	}
+
+	.toggle-thumb {
+		position: absolute;
+		top: 0.25rem;
+		left: 0.25rem;
+		width: 1.5rem;
+		height: 1.5rem;
+		background-color: var(--color-accent);
+		border-radius: 50%;
+		transition: transform 0.2s ease;
+		box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
+		filter: brightness(0.95);
+	}
+
+	.toggle-input:checked + .toggle-track {
+		background-color: rgb(11, 70, 11);
+	}
+
+	.toggle-input:checked + .toggle-track .toggle-thumb {
+		transform: translateX(1.75rem);
+	}
+
+	.toggle-input:focus-visible + .toggle-track {
+		outline: 2px solid #3b82f6;
+		outline-offset: 2px;
+	}
+
+	.toggle-label-text {
+		font-weight: 600;
+		cursor: pointer;
+		user-select: none;
+		color: var(--color-title);
+	}
+
+	.is-disabled {
+		opacity: 0.5;
+	}
+
+	.is-disabled .toggle-track,
+	.is-disabled .toggle-label-text {
+		cursor: not-allowed;
+	}
+</style>

src/lib/geohash.svelte.ts

@@ -1,12 +1,15 @@
 import { OwlClient, ValidationError, ApiError } from './owlClient';
 import type { ApiStationsNearestStations } from '@owlboard/owlboard-ts';
+import { prefs } from './preferences.svelte';
 
 class NearestStationsState {
 	list = $state<ApiStationsNearestStations.StationsNearestStations[]>([]);
 	currentHash = $state('');
-	loading = $state(true);
+	loading = $state(false);
 	error = $state<string | null>(null);
 
+	private watcherId: number | null = null;
+
 	private initGeoConfig: PositionOptions = {
 		enableHighAccuracy: false,
 		timeout: 500,
@@ -20,10 +23,35 @@ class NearestStationsState {
 	};
 
 	constructor() {
-		if (typeof window !== 'undefined' && 'geolocation' in navigator) {
+		if (typeof window === 'undefined' || !('geolocation' in navigator)) return;
+
+		$effect.root(() => {
+			$effect(() => {
+				if (prefs.current.NearToMe) {
+					this.startTracking();
+				} else {
+					this.stopTracking();
+				}
+			});
+		});
+	}
+
+	private startTracking() {
+		if (this.watcherId !== null) return; // Already tracking
+		this.loading = true;
 		this.jumpstart();
 		this.initWatcher();
 	}
+
+	private stopTracking() {
+		if (this.watcherId !== null) {
+			navigator.geolocation.clearWatch(this.watcherId);
+			this.watcherId = null;
+		}
+		this.list = [];
+		this.currentHash = '';
+		this.loading = false;
+		this.error = null;
 	}
 
 	private jumpstart() {
@@ -35,7 +63,7 @@ class NearestStationsState {
 	}
 
 	private initWatcher() {
-		navigator.geolocation.watchPosition(
+		this.watcherId = navigator.geolocation.watchPosition(
 			(pos) => this.handleUpdate(pos.coords.latitude, pos.coords.longitude),
 			(err) => this.handleError(err),
 			this.geoConfig

src/lib/owlClient.ts

@@ -31,7 +31,7 @@ export function ThrowApiError(e: unknown): never {
 
 	// Map ApiError 'code' values
 	if (e instanceof ApiError) {
-		console.error(JSON.stringify(e), e.code, "ERRCODE")
+		console.error(JSON.stringify(e), e.code, 'ERRCODE');
 		let status = 500;
 		if (e.code === 'AUTH') {
 			status = 401;
@@ -54,7 +54,7 @@ export function ThrowApiError(e: unknown): never {
 
 	// Fallback for other error kind
 	const genericMessage = e instanceof Error ? e.message : 'An unexpected error occurred.';
-	console.log(e)
+	console.log(e);
 	throw error(500, {
 		message: genericMessage,
 		name: 'CRITICAL_ERROR',

src/lib/preferences.svelte.ts

@@ -1,13 +1,15 @@
 import { browser } from '$app/environment';
 
 export interface Preferences {
-	locationEnabled: boolean;
+	NearToMe: boolean;
+	ShowPassingTrains: boolean;
 }
 
 const STORAGE_KEY = 'ob_pref';
 
 const DEFAULT_PREFS: Preferences = {
-	locationEnabled: false
+	NearToMe: false,
+	ShowPassingTrains: true
 };
 
 function loadPrefs(): Preferences {
@@ -16,7 +18,13 @@ function loadPrefs(): Preferences {
 	if (!stored) return DEFAULT_PREFS;
 
 	try {
-		return { ...DEFAULT_PREFS, ...JSON.parse(stored) };
+		const parsed = JSON.parse(stored);
+		const cleaned = {} as Preferences;
+
+		for (const key of Object.keys(DEFAULT_PREFS) as Array<keyof Preferences>) {
+			cleaned[key] = key in parsed ? parsed[key] : DEFAULT_PREFS[key];
+		}
+		return cleaned;
 	} catch {
 		return DEFAULT_PREFS;
 	}
@@ -35,8 +43,12 @@ class PreferencesStore {
 		});
 	}
 
-	toggleLocation(enabled: boolean) {
+	toggleNearToMe(enabled: boolean) {
-		this.current.locationEnabled = enabled;
+		this.current.NearToMe = enabled;
+	}
+
+	toggleShowPassingTrains(enabled: boolean) {
+		this.current.ShowPassingTrains = enabled;
 	}
 }
 

src/routes/+layout.svelte

@@ -20,7 +20,8 @@
 		IconDialpad,
 		IconSettings,
 		IconHelp,
-		IconDots
+		IconDots,
+		IconSpy,
 	} from '@tabler/icons-svelte-runes';
 
 	onMount(async () => {
@@ -47,13 +48,14 @@
 		{ label: 'Home', path: '/', icon: IconHome },
 		{ label: 'PIS', path: '/pis/', icon: IconDialpad },
 		{ label: 'Options', path: '/preferences/', icon: IconSettings },
-		{ label: 'About', path: '/about/', icon: IconHelp }
+		{ label: 'About', path: '/about/', icon: IconHelp },
+		{ label: 'Privacy Policy', path: '/privacy/', icon: IconSpy },
 	];
 
 	let navWidth = $state(0);
 	let menuOpen = $state(false);
-	const ITEM_WIDTH = 70;
+	const ITEM_WIDTH = 110;
-	const MORE_BUTTON_WIDTH = 70;
+	const MORE_BUTTON_WIDTH = 110;
 
 	const activePath = $derived(page.url?.pathname ?? '');
 

src/routes/preferences/+page.svelte

@@ -0,0 +1,54 @@
+<script lang="ts">
+	import BaseCard from '$lib/components/ui/cards/BaseCard.svelte';
+	import Button from '$lib/components/ui/form-elements/Button.svelte';
+	import Toggle from '$lib/components/ui/form-elements/Toggle.svelte';
+	import { quickLinks } from '$lib/quick-links.svelte';
+	import { prefs } from '$lib/preferences.svelte';
+</script>
+
+<section class="page-body">
+	<BaseCard header={'Display Settings'}>
+		<section class="card-content">
+			<Button onclick={() => quickLinks.reset()}>Reset QuickLinks</Button>
+			<div class="toggle-container">
+				<Toggle
+					label={'Show stations near to you'}
+					id={'toggle-nearby-stations'}
+					checked={prefs.current.NearToMe}
+					onchange={(checked) => prefs.toggleNearToMe(checked)}
+				/>
+				<Toggle
+					label={'Show passsing trains on boards'}
+					id={'toggle-passing-trains'}
+					checked={prefs.current.ShowPassingTrains}
+					onchange={(checked) => prefs.toggleShowPassingTrains(checked)}
+				/>
+			</div>
+		</section>
+	</BaseCard>
+</section>
+
+<style>
+	.page-body {
+		display: flex;
+		flex-direction: column;
+		align-items: center;
+		justify-content: center;
+		padding: 1rem 0 1rem 0;
+	}
+
+	.card-content {
+		display: flex;
+		flex-direction: column;
+		align-items: center;
+		justify-content: center;
+		gap: 1rem;
+		padding: 5px 0 5px 0;
+	}
+
+	.toggle-container {
+		display: flex;
+		flex-direction: column;
+		gap: 0.5rem;
+	}
+</style>

src/routes/preferences/+page.ts

@@ -0,0 +1,5 @@
+export const load = () => {
+	return {
+		title: 'Preferences'
+	};
+};

src/routes/privacy/+page.svelte

@@ -0,0 +1,218 @@
+<script lang="ts">
+</script>
+
+<section class="policy-block-container">
+	<p class="policy-meta"><em>Last updated: May 2026</em></p>
+
+	<p class="policy-intro">
+		The OwlBoard project is built to help you track trains, not track you. Here is exactly what data
+		is used, how it is used, and why.
+	</p>
+
+	<hr class="policy-divider" />
+
+	<section class="policy-section">
+		<h3 class="section-heading">1. The Data Processed (And What Is Discarded)</h3>
+
+		<ul class="policy-list">
+			<li class="list-item">
+				<strong class="highlight-text">Email Addresses:</strong> During sign-up, an email address is
+				requested solely to send a verification code. This needs to happen, as some data is
+				restricted to rail staff only due to licensing restrictions.
+				<strong
+					>The moment the verification code is sent, the email address is permanently deleted
+					from the system.</strong
+				> It is not stored, it is not logged, and it cannot be looked up later.
+			</li>
+			<li class="list-item">
+				<strong class="highlight-text">Platform Identity:</strong> Instead of an email, an account
+				is identified by two things:
+				<ol class="policy-nested-list">
+					<li>
+						A unique alphanumeric <strong class="code-text">"key"</strong> generated randomly for the
+						device upon verification.
+					</li>
+					<li>The <strong class="code-text">domain portion</strong> of the registration email.</li>
+				</ol>
+				<blockquote class="policy-example">
+					<strong>Example:</strong> If signing up as <code>user@owlboard.info</code>, the email is
+					wiped, and the account identifier becomes <code>[Your-Secret-Key] @ owlboard.info</code>.
+					This allows OwlBoard to manage access without knowing who you are.
+				</blockquote>
+			</li>
+			<li class="list-item">
+				<strong class="highlight-text">Fuzzy Location Data:</strong> If the "Near to Me" toggle is
+				enabled, exact GPS coordinates are calculated, but never leave your device. Your device compresses the position
+				into a <strong class="highlight-text">"fuzzy location block"</strong> (a geohash) roughly 1.2km
+				by 0.6km in size before contacting the server to request nearby stations. OwlBoard only processes
+				that neighborhood block—never an exact location.
+			</li>
+			<li class="list-item">
+				<strong class="highlight-text">Server Logs &amp; IP Addresses:</strong> Like any web application,
+				self-hosted security tools and the Web Application Firewall (WAF) temporarily process network
+				IP addresses. This is strictly for system health, infrastructure monitoring, and blocking malicious or
+				automated attacks.
+			</li>
+		</ul>
+	</section>
+
+	<hr class="policy-divider" />
+
+	<section class="policy-section">
+		<h3 class="section-heading">2. What Is Considered "Personal Data"?</h3>
+
+		<p class="policy-text">
+			Under the GDPR, "Personal Data" is anything that can directly or indirectly pinpoint a living
+			individual.
+		</p>
+		<p class="policy-text">
+			Because email addresses are discarded instantly and location hardware telemetry is fuzzed
+			directly on the device, <strong
+				>station boards, preferences, and account keys are completely pseudonymized.</strong
+			> However, because network IP addresses are technically classified as personal data under European
+			law, transient security logs are treated with the highest level of guardrail protection.
+		</p>
+	</section>
+
+	<hr class="policy-divider" />
+
+	<section class="policy-section">
+		<h3 class="section-heading">
+			3. Subject Access Requests (SAR) &amp; The Right to be Forgotten
+		</h3>
+
+		<p class="policy-text">
+			Absolute sovereignty over your digital footprint should be standard, without jumping through
+			bureaucratic hoops. There is no need to send an email to exercise GDPR rights:
+		</p>
+
+		<ul class="policy-list">
+			<li class="list-item">
+				<strong class="highlight-text">Instant SAR (Right of Access):</strong> The
+				<strong>Account</strong> dashboard contains a dedicated section displaying
+				every single line of data which can be identified with the account key block. It can be viewed or copied instantly.
+			</li>
+			<li class="list-item">
+				<strong class="highlight-text">The Right to be Forgotten (Instant Erasure):</strong> A
+				prominent <strong>"Delete Account"</strong> button is available on that same page. Clicking this
+				instantly wipes the account key.  You will be able to re-register at any time, and all of your preferences remain only on your device.
+			</li>
+		</ul>
+		<p class="policy-text">
+			While the pseudonymized settings left behind are not technically personal data once
+			disconnected from an identity, the OwlBoard project operates on a simple philosophy.
+			When the delete button is pressed, the data is erased.
+		</p>
+	</section>
+
+	<hr class="policy-divider" />
+
+	<section class="policy-section">
+		<h3 class="section-heading">4. No Third-Party Conglomerates</h3>
+
+		<p class="policy-text">
+			All data is hosted transparently on isolated, self-hosted server infrastructure in Somerset. OwlBoard does
+			not use third-party analytics trackers, tracking cookies, or advertising networks.
+		</p>
+	</section>
+</section>
+
+<style>
+	.policy-block-container {
+		margin: 1rem auto;
+		width: 90%;
+		max-width: 650px;
+		font-family: 'URW Gothic', sans-serif;
+		text-align: center;
+		display: flex;
+		flex-direction: column;
+		gap: 0;
+	}
+
+	.policy-block-container:last-child {
+		padding-bottom: 15px;
+	}
+
+	.policy-meta {
+		font-size: 0.875rem;
+		color: var(--color-text-muted, #64748b);
+		margin-bottom: 2rem;
+	}
+
+	.policy-intro {
+		font-size: 1.125rem;
+		line-height: 1.6;
+		margin-bottom: 2rem;
+	}
+
+	.policy-divider {
+		border: 0;
+		height: 1px;
+		background: var(--color-border, #e2e8f0);
+		margin: 2rem 0;
+	}
+
+	/* --- Section Blocks --- */
+	.policy-section {
+		margin-bottom: 2.5rem;
+	}
+
+	.section-heading {
+		font-size: 1.5rem;
+		font-weight: 600;
+		margin-top: 0;
+		margin-bottom: 1.25rem;
+	}
+
+	.policy-text {
+		line-height: 1.6;
+		margin-top: 0;
+		margin-bottom: 1rem;
+	}
+
+	/* --- Lists & Typography Elements --- */
+	.policy-list {
+		list-style-type: disc;
+		padding-left: 1.5rem;
+		margin: 0 0 1.5rem 0;
+	}
+
+	.list-item {
+		line-height: 1.6;
+		margin-bottom: 1.25rem;
+	}
+
+	.list-item:last-child {
+		margin-bottom: 0;
+	}
+
+	.policy-nested-list {
+		list-style-type: decimal;
+		padding-left: 1.5rem;
+		margin: 0.5rem 0;
+	}
+
+	.policy-nested-list li {
+		margin-bottom: 0.5rem;
+	}
+
+	.policy-example {
+		background-color: var(--color-bg-light);
+		border-left: 4px solid var(--color-accent);
+		margin: 1rem 0;
+		padding: 1rem;
+		font-style: normal;
+		font-size: 0.95rem;
+		line-height: 1.5;
+		border-radius: 0 4px 4px 0;
+	}
+
+	.code-text,
+	.policy-example code {
+		font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
+		font-size: 0.875rem;
+		background-color: var(--color-accent);
+		padding: 0.125rem 0.375rem;
+		border-radius: 0.25rem;
+	}
+</style>

src/routes/privacy/+page.ts

@@ -0,0 +1,5 @@
+export const load = () => {
+	return {
+		title: 'Privacy'
+	};
+};