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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Cal.rs — Fast, self-hostable scheduling</title>
<meta name="description" content="Open-source scheduling platform written in Rust. Like Cal.com, but self-hosted. Connect CalDAV calendars, define bookable meetings, share a link.">
<meta property="og:title" content="Cal.rs — Self-hostable scheduling in Rust">
<meta property="og:description" content="Connect your CalDAV calendar, define bookable meetings, share a link. No Node.js, no PostgreSQL, no subscription.">
<meta property="og:image" content="https://cal.rs/assets/screenshot.png">
<meta property="og:url" content="https://cal.rs">
<meta name="twitter:card" content="summary_large_image">
<link rel="icon" href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>🦀</text></svg>">
<style>
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { overflow-x: hidden; }
:root {
--bg: #0a0a0f;
--bg-card: #12121a;
--bg-card-hover: #1a1a26;
--border: #1e1e2e;
--text: #e4e4ed;
--text-secondary: #9393a8;
--text-muted: #5c5c72;
--accent: #6366f1;
--accent-glow: rgba(99, 102, 241, 0.15);
--accent-bright: #818cf8;
--green: #22c55e;
--orange: #f59e0b;
--radius: 12px;
--radius-lg: 20px;
}
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Inter, Roboto, sans-serif;
background: var(--bg);
color: var(--text);
line-height: 1.6;
overflow-x: hidden;
}
a { color: var(--accent-bright); text-decoration: none; }
a:hover { text-decoration: underline; }
/* Noise texture overlay */
body::before {
content: '';
position: fixed;
inset: 0;
background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
pointer-events: none;
z-index: 0;
}
.container { max-width: 1120px; margin: 0 auto; padding: 0 1.5rem; position: relative; z-index: 1; }
/* --- NAV --- */
nav {
position: sticky; top: 0; z-index: 100;
background: rgba(10, 10, 15, 0.8);
backdrop-filter: blur(20px);
border-bottom: 1px solid var(--border);
}
nav .container {
display: flex; align-items: center; justify-content: space-between;
height: 64px;
}
.nav-brand { display: flex; align-items: center; gap: 0.6rem; font-weight: 700; font-size: 1.15rem; color: var(--text); }
.nav-brand .brand-cal { color: var(--text); }
.nav-brand .brand-dot { color: var(--text-muted); }
.nav-brand .brand-rs { color: var(--accent-bright); }
.nav-brand img { height: 32px; }
.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-links a { color: var(--text-secondary); font-size: 0.9rem; font-weight: 500; display: inline-flex; align-items: center; gap: 0.35rem; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.btn {
display: inline-flex; align-items: center; gap: 0.5rem;
padding: 0.6rem 1.25rem; border-radius: 8px;
font-weight: 600; font-size: 0.9rem;
transition: all 0.2s;
border: none; cursor: pointer;
text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-bright); transform: translateY(-1px); box-shadow: 0 4px 20px var(--accent-glow); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--bg-card); border-color: var(--text-muted); }
.btn-lg { padding: 0.85rem 1.75rem; font-size: 1rem; border-radius: 10px; }
/* --- HERO --- */
.hero-lockup { display: flex; align-items: center; justify-content: center; gap: 1rem; margin-bottom: 1rem; }
.hero-logo { height: 80px; filter: drop-shadow(0 4px 24px var(--accent-glow)); }
.brand-name { font-size: clamp(2.8rem, 7vw, 4.5rem); font-weight: 800; letter-spacing: -0.04em; }
.brand-cal { color: var(--text); }
.brand-dot { color: var(--text-muted); }
.brand-rs { color: var(--accent-bright); }
.hero {
padding: 2.5rem 0 4rem;
text-align: center;
position: relative;
overflow: hidden;
}
/* Gradient orbs */
.hero::before {
content: '';
position: absolute;
top: -120px; left: 50%; transform: translateX(-50%);
width: 600px; height: 600px;
background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
pointer-events: none;
}
.hero-badge {
display: inline-flex; align-items: center; gap: 0.5rem;
padding: 0.4rem 1rem; border-radius: 100px;
background: var(--bg-card); border: 1px solid var(--border);
font-size: 0.8rem; color: var(--text-secondary);
margin-bottom: 1.5rem;
}
.hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
h1 {
font-size: clamp(2.5rem, 6vw, 4rem);
font-weight: 800;
line-height: 1.1;
letter-spacing: -0.03em;
margin-bottom: 1.25rem;
}
h1 .gradient {
background: linear-gradient(135deg, var(--accent-bright) 0%, #a78bfa 50%, #f472b6 100%);
-webkit-background-clip: text; -webkit-text-fill-color: transparent;
background-clip: text;
}
.hero-sub {
font-size: clamp(1.05rem, 2vw, 1.25rem);
color: var(--text-secondary);
max-width: 600px; margin: 0 auto 2.5rem;
line-height: 1.7;
}
.hero-actions { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; margin-bottom: 1rem; }
.github-stars {
display: inline-flex; align-items: center; gap: 0.4rem;
margin-top: 1.5rem;
font-size: 0.85rem; color: var(--text-muted);
}
.github-stars svg { opacity: 0.6; }
/* --- SCREENSHOT --- */
.hero-screenshot {
margin-top: 3rem;
position: relative;
}
.hero-screenshot img {
width: 100%; max-width: 900px;
border-radius: var(--radius-lg);
border: 1px solid var(--border);
box-shadow: 0 40px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.03);
}
.hero-screenshot::after {
content: '';
position: absolute;
bottom: -40px; left: 50%; transform: translateX(-50%);
width: 80%; height: 80px;
background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
filter: blur(30px);
pointer-events: none;
}
/* --- FEATURES --- */
.section { padding: 3.5rem 0; }
.section-label {
display: inline-block;
font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
color: var(--accent-bright);
margin-bottom: 0.75rem;
}
.section-title {
font-size: clamp(1.75rem, 4vw, 2.5rem);
font-weight: 800; letter-spacing: -0.02em;
margin-bottom: 1rem;
}
.section-desc {
font-size: 1.05rem; color: var(--text-secondary);
max-width: 560px; margin-bottom: 2rem;
}
.features-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
gap: 1.25rem;
}
.feature-card {
background: var(--bg-card);
border: 1px solid var(--border);
border-radius: var(--radius);
padding: 1.75rem;
transition: all 0.25s;
}
.feature-card:hover {
background: var(--bg-card-hover);
border-color: rgba(99, 102, 241, 0.3);
transform: translateY(-2px);
}
.feature-icon {
width: 40px; height: 40px;
border-radius: 10px;
display: flex; align-items: center; justify-content: center;
font-size: 1.25rem;
margin-bottom: 1rem;
background: var(--accent-glow);
}
.feature-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.5rem; }
.feature-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }
/* --- SCREENSHOTS SHOWCASE --- */
.showcase-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 1.5rem;
margin-top: 2rem;
}
.showcase-item {
border-radius: var(--radius);
overflow: hidden;
border: 1px solid var(--border);
transition: all 0.3s;
}
.showcase-item:hover {
border-color: rgba(99, 102, 241, 0.3);
transform: translateY(-3px);
box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}
.showcase-item img { width: 100%; display: block; }
.showcase-item .caption {
padding: 0.75rem 1rem;
background: var(--bg-card);
font-size: 0.85rem; font-weight: 600;
color: var(--text-secondary);
}
@media (max-width: 640px) {
.container { padding: 0 1rem; }
/* Nav: hide Star button, tighten gaps */
.nav-links { gap: 0.75rem; }
.nav-links .btn-ghost { display: none; }
/* Hero lockup */
.hero-lockup { gap: 0.75rem; }
.hero-logo { height: 56px; }
.hero { padding: 1.5rem 0 2.5rem; }
.hero-badge { font-size: 0.7rem; padding: 0.35rem 0.75rem; }
.hero-sub { margin-bottom: 1.5rem; }
.hero-screenshot { margin-top: 2rem; }
/* Features: single column */
.features-grid { grid-template-columns: 1fr; }
/* Screenshots: single column */
.showcase-grid { grid-template-columns: 1fr; }
/* Install tabs: scroll if needed */
.install-tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.install-tab { white-space: nowrap; flex-shrink: 0; }
/* Social links: wrap */
.social-links { flex-wrap: wrap; gap: 0.5rem; }
.social-link { font-size: 0.8rem; padding: 0.4rem 0.75rem; }
/* CTA */
.cta-actions { flex-direction: column; align-items: center; }
/* Stack tags: wrap tighter */
.stack-row { gap: 0.5rem; }
.stack-tag { font-size: 0.8rem; padding: 0.4rem 0.75rem; }
}
/* --- INSTALL --- */
.install-block {
background: var(--bg-card);
border: 1px solid var(--border);
border-radius: var(--radius);
overflow: hidden;
}
.install-tabs {
display: flex; border-bottom: 1px solid var(--border);
}
.install-tab {
padding: 0.75rem 1.25rem;
font-size: 0.85rem; font-weight: 600;
color: var(--text-muted);
cursor: pointer;
border-bottom: 2px solid transparent;
transition: all 0.2s;
background: none; border-top: none; border-left: none; border-right: none;
}
.install-tab:hover { color: var(--text-secondary); }
.install-tab.active { color: var(--accent-bright); border-bottom-color: var(--accent); }
.install-code {
padding: 1.5rem;
font-family: 'SF Mono', 'Fira Code', monospace;
font-size: 0.82rem;
word-break: break-all;
white-space: pre-wrap;
line-height: 1.8;
color: var(--text-secondary);
display: none;
}
.install-code.active { display: block; }
.install-code .comment { color: var(--text-muted); }
.install-code .cmd { color: var(--text); }
/* --- TECH STACK --- */
.stack-row {
display: flex; flex-wrap: wrap; gap: 0.75rem;
margin-top: 1.5rem;
}
.stack-tag {
display: inline-flex; align-items: center; gap: 0.4rem;
padding: 0.5rem 1rem;
background: var(--bg-card); border: 1px solid var(--border);
border-radius: 100px;
font-size: 0.85rem; font-weight: 500; color: var(--text-secondary);
}
/* --- CTA --- */
.cta {
text-align: center;
padding: 3rem 0;
position: relative;
overflow: hidden;
}
.cta::before {
content: '';
position: absolute;
bottom: 0; left: 50%; transform: translateX(-50%);
width: 500px; height: 400px;
background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
pointer-events: none;
}
.cta h2 {
font-size: clamp(2rem, 4vw, 3rem);
font-weight: 800; letter-spacing: -0.02em;
margin-bottom: 1rem;
}
.cta p {
font-size: 1.1rem; color: var(--text-secondary);
max-width: 480px; margin: 0 auto 2rem;
}
.cta-actions { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }
.social-links {
display: flex; gap: 1rem; justify-content: center;
margin-top: 2.5rem;
}
.social-link {
display: inline-flex; align-items: center; gap: 0.5rem;
padding: 0.5rem 1rem;
border-radius: 8px;
background: var(--bg-card); border: 1px solid var(--border);
font-size: 0.85rem; font-weight: 500; color: var(--text-secondary);
transition: all 0.2s;
}
.social-link:hover { background: var(--bg-card-hover); color: var(--text); text-decoration: none; border-color: var(--text-muted); }
/* --- FOOTER --- */
footer {
border-top: 1px solid var(--border);
padding: 2rem 0;
text-align: center;
font-size: 0.85rem;
color: var(--text-muted);
}
footer a { color: var(--text-secondary); }
/* SVGs */
.icon-svg { width: 18px; height: 18px; fill: currentColor; }
</style>
</head>
<body>
<!-- Nav -->
<nav>
<div class="container">
<a href="/" class="nav-brand">
<img src="assets/calrs.png" alt="Cal.rs">
<span><span class="brand-cal">Cal</span><span class="brand-dot">.</span><span class="brand-rs">rs</span></span>
</a>
<div class="nav-links">
<a href="#features">Features</a>
<a href="#screenshots">Screenshots</a>
<a href="#install">Install</a>
<a href="docs/">Docs</a>
<a href="https://github.com/olivierlambert/calrs" target="_blank">
<svg class="icon-svg" viewBox="0 0 16 16"><path d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.013 8.013 0 0016 8c0-4.42-3.58-8-8-8z"/></svg>
GitHub
</a>
<a href="https://github.com/olivierlambert/calrs" target="_blank" class="btn btn-ghost" style="padding: 0.4rem 0.9rem; font-size: 0.82rem;">
<svg class="icon-svg" viewBox="0 0 16 16" style="width:14px;height:14px;"><path d="M8 .25a.75.75 0 01.673.418l1.882 3.815 4.21.612a.75.75 0 01.416 1.279l-3.046 2.97.719 4.192a.75.75 0 01-1.088.791L8 12.347l-3.766 1.98a.75.75 0 01-1.088-.79l.72-4.194L.818 6.374a.75.75 0 01.416-1.28l4.21-.611L7.327.668A.75.75 0 018 .25z"/></svg>
Star
</a>
</div>
</div>
</nav>
<!-- Hero -->
<section class="hero">
<div class="container">
<div class="hero-lockup">
<img src="assets/calrs.png" alt="Cal.rs" class="hero-logo">
<div class="brand-name"><span class="brand-cal">Cal</span><span class="brand-dot">.</span><span class="brand-rs">rs</span></div>
</div>
<div class="hero-badge">One Rust binary · Fully self-hostable · No external requests · Open source</div>
<h1>
Scheduling that<br><span class="gradient">respects your stack</span>
</h1>
<p class="hero-sub">
Connect your CalDAV calendar, define bookable meetings, share a link.
No Node.js, no PostgreSQL, no SaaS subscription. Just a single Rust binary.
</p>
<div class="hero-actions">
<a href="#install" class="btn btn-primary btn-lg">Get started</a>
<a href="https://github.com/olivierlambert/calrs" target="_blank" class="btn btn-ghost btn-lg">
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View on GitHub
</a>
</div>
<div class="hero-screenshot">
<img src="assets/screenshot.png" alt="calrs dashboard">
</div>
</div>
</section>
<!-- Features -->
<section class="section" id="features">
<div class="container">
<span class="section-label">Features</span>
<h2 class="section-title">Everything you need to schedule meetings</h2>
<p class="section-desc">A complete scheduling platform that runs on your infrastructure. No vendor lock-in, no monthly fees.</p>
<div class="features-grid">
<div class="feature-card">
<div class="feature-icon">📅</div>
<h3>CalDAV sync</h3>
<p>Pull events from Nextcloud, BlueMind, Fastmail, iCloud, Google, and more. Auto-discovery via RFC 4791. Write confirmed bookings back to your calendar. <strong>Delta sync via RFC 6578 sync-token</strong> — only fetches changes, not your entire calendar. Scales to hundreds of users. Background sync catches deletions even when nobody's booking.</p>
</div>
<div class="feature-card">
<div class="feature-icon">⚡</div>
<h3>Availability engine</h3>
<p>Free/busy computed from availability rules, synced calendar events, existing bookings, buffer times, and minimum notice. Date overrides let you block days off or set custom hours. RRULE expansion for recurring events.</p>
</div>
<div class="feature-card">
<div class="feature-icon">🌐</div>
<h3>Timezone aware</h3>
<p>Guest timezone auto-detected from the browser. Calendar events are converted from their original timezone to yours — a 10:00 New York meeting correctly blocks 16:00 in Paris. Full IANA timezone database support.</p>
</div>
<div class="feature-card">
<div class="feature-icon">📧</div>
<h3>Email notifications</h3>
<p>HTML emails with .ics calendar invites. Approve or decline pending bookings directly from the email — no login required. Guests can invite additional attendees who receive their own confirmation with ICS.</p>
</div>
<div class="feature-card">
<div class="feature-icon">👥</div>
<h3>Unified teams</h3>
<p>Create teams from OIDC groups, hand-picked users, or both. <strong>Round-robin</strong> assigns to the least-busy available member with configurable priority weights. <strong>Collective</strong> requires all members to be free. Team avatars and stacked member photos on booking pages. Global admins can set up teams without being bookable.</p>
</div>
<div class="feature-card">
<div class="feature-icon">🔓</div>
<h3>Three-level visibility</h3>
<p><strong>Public</strong> — listed on your profile, anyone can book. <strong>Internal</strong> — any authenticated colleague generates single-use invite links from the Invite Links page. <strong>Private</strong> — only you send invite links. Works for both personal and team event types. One-click link generation with clipboard copy.</p>
</div>
<div class="feature-card">
<div class="feature-icon">🔄</div>
<h3>Reschedule</h3>
<p>Guests and hosts can reschedule bookings without cancelling. Guests pick a new slot and the host approves; hosts reschedule instantly. CalDAV events updated in place, tokens regenerated, both parties notified.</p>
</div>
<div class="feature-card">
<div class="feature-icon">📆</div>
<h3>Date overrides</h3>
<p>Block specific dates or set custom hours per event type. Perfect for holidays, conferences, or one-off schedule changes. Overrides replace your weekly rules for that day — the troubleshoot view shows when they're active.</p>
</div>
<div class="feature-card">
<div class="feature-icon">🔒</div>
<h3>Security</h3>
<p>Argon2 password hashing, OIDC SSO with PKCE, AES-256-GCM encrypted credentials at rest. Hidden password input. Auto-generated secret key or bring your own via environment variable.</p>
</div>
<div class="feature-card">
<div class="feature-icon">🎨</div>
<h3>Theme engine</h3>
<p>7 built-in themes (Default, Nord, Dracula, Gruvbox, Solarized, Tokyo Night, Vates) plus custom colors — all configurable from the admin dashboard. Every theme adapts to both dark and light modes. Cal.com-style slot picker with dynamic timezone labels and month calendar.</p>
</div>
<div class="feature-card">
<div class="feature-icon">📦</div>
<h3>Single binary, zero external requests</h3>
<p>No runtime dependencies. SQLite storage in a single WAL-mode file. Ships as one binary — deploy with Docker, systemd, or just run it. Fonts are bundled — no Google Fonts CDN, no third-party requests. Fully GDPR-compliant out of the box.</p>
</div>
<div class="feature-card">
<div class="feature-icon">🛠</div>
<h3>Full CLI</h3>
<p>Manage everything headless: sources, sync, event types, bookings, users, SMTP config. Perfect for automation and scripting.</p>
</div>
<div class="feature-card">
<div class="feature-icon">✅</div>
<h3>Tested & verified</h3>
<p>500+ automated tests covering web handlers, CLI commands, auth lifecycle, availability engine, slot computation, database migrations, RRULE expansion, iCal parsing, timezone conversion, and email rendering. Every commit is checked by CI with code coverage tracking.</p>
<p style="margin-top: 0.75rem; display: flex; gap: 0.5rem; flex-wrap: wrap;"><a href="https://github.com/olivierlambert/calrs/actions/workflows/ci.yml"><img src="https://github.com/olivierlambert/calrs/actions/workflows/ci.yml/badge.svg" alt="CI" style="height: 20px;"></a> <a href="https://codecov.io/gh/olivierlambert/calrs"><img src="https://codecov.io/gh/olivierlambert/calrs/graph/badge.svg" alt="codecov" style="height: 20px;"></a></p>
</div>
<div class="feature-card">
<div class="feature-icon">🐳</div>
<h3>Pre-built Docker images</h3>
<p>Multi-arch images for <code>amd64</code> and <code>arm64</code> published to <a href="https://github.com/olivierlambert/calrs/pkgs/container/calrs">GitHub Container Registry</a> on every release. No build step — just <code>docker pull</code> and run. Works on Raspberry Pi, Apple Silicon, and ARM cloud instances.</p>
</div>
</div>
</div>
</section>
<!-- Screenshots -->
<section class="section" style="padding-top: 0;" id="screenshots">
<div class="container">
<span class="section-label">In action</span>
<h2 class="section-title">See it in action</h2>
<p class="section-desc">A clean, focused booking experience for your guests and a powerful dashboard for you.</p>
<div class="showcase-grid">
<div class="showcase-item">
<img src="assets/screenshots/bookings.png" alt="Bookings with human-friendly dates" loading="lazy">
<div class="caption">Bookings — human-friendly dates</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/slots.png" alt="Time slot picker" loading="lazy">
<div class="caption">Slot picker with timezone support</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/event-types.png" alt="Event types" loading="lazy">
<div class="caption">Event types</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/booking-form.png" alt="Booking form" loading="lazy">
<div class="caption">Booking form</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/sources.png" alt="Calendar sources" loading="lazy">
<div class="caption">Calendar sources</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/source-form.png" alt="Add CalDAV source" loading="lazy">
<div class="caption">Connect a CalDAV calendar</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/teams.png" alt="Teams" loading="lazy">
<div class="caption">Teams</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/event-type-form.png" alt="Event type editor" loading="lazy">
<div class="caption">Event type editor</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/team-settings.png" alt="Team settings" loading="lazy">
<div class="caption">Team settings</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/invite-links.png" alt="Invite links" loading="lazy">
<div class="caption">Invite links</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/admin.png" alt="Admin dashboard" loading="lazy">
<div class="caption">Admin panel</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/troubleshoot.png" alt="Availability troubleshoot" loading="lazy">
<div class="caption">Availability troubleshoot</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/settings.png" alt="Profile and settings" loading="lazy">
<div class="caption">Profile & settings</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/profile.png" alt="Public profile" loading="lazy">
<div class="caption">Public booking profile</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/reschedule.png" alt="Reschedule slot picker" loading="lazy">
<div class="caption">Reschedule slot picker</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/reschedule-confirm.png" alt="Reschedule confirmation" loading="lazy">
<div class="caption">Reschedule confirmation</div>
</div>
</div>
<div style="margin-top: 2rem;">
<span class="section-label">Light & mobile</span>
<div class="showcase-grid" style="margin-top: 1rem;">
<div class="showcase-item">
<img src="assets/screenshots/slots-light.png" alt="Light mode" loading="lazy">
<div class="caption">Light mode</div>
</div>
<div class="showcase-item">
<img src="assets/screenshots/bookings-light.png" alt="Light mode bookings" loading="lazy">
<div class="caption">Light mode — bookings</div>
</div>
</div>
<div style="display: flex; gap: 1.5rem; margin-top: 1.5rem; justify-content: center;">
<div class="showcase-item" style="max-width: 220px;">
<img src="assets/screenshots/mobile-dashboard.png" alt="Mobile dashboard" loading="lazy">
<div class="caption">Mobile dashboard</div>
</div>
<div class="showcase-item" style="max-width: 220px;">
<img src="assets/screenshots/mobile-bookings.png" alt="Mobile bookings" loading="lazy">
<div class="caption">Mobile bookings</div>
</div>
<div class="showcase-item" style="max-width: 220px;">
<img src="assets/screenshots/mobile-slots.png" alt="Mobile slots" loading="lazy">
<div class="caption">Mobile slots</div>
</div>
</div>
</div>
</div>
</section>
<!-- Install -->
<section class="section" id="install">
<div class="container">
<span class="section-label">Get started</span>
<h2 class="section-title">Up and running in minutes</h2>
<p class="section-desc">Pick your preferred method. The first user to register becomes admin.</p>
<div class="install-block">
<div class="install-tabs">
<button class="install-tab active" onclick="showTab('docker')">Docker</button>
<button class="install-tab" onclick="showTab('compose')">Compose</button>
<button class="install-tab" onclick="showTab('binary')">Binary</button>
<button class="install-tab" onclick="showTab('source')">Source</button>
</div>
<pre class="install-code active" id="tab-docker"><span class="comment"># Pre-built image from GHCR (amd64 + arm64)</span>
<span class="cmd">docker run -d --name calrs \</span>
<span class="cmd"> -p 3000:3000 \</span>
<span class="cmd"> -v calrs-data:/var/lib/calrs \</span>
<span class="cmd"> -e CALRS_BASE_URL=https://cal.example.com \</span>
<span class="cmd"> ghcr.io/olivierlambert/calrs:latest</span>
<span class="comment"># Open http://localhost:3000 and register</span></pre>
<pre class="install-code" id="tab-compose"><span class="comment"># docker-compose.yml</span>
<span class="cmd">services:</span>
<span class="cmd"> calrs:</span>
<span class="cmd"> image: ghcr.io/olivierlambert/calrs:latest</span>
<span class="cmd"> ports:</span>
<span class="cmd"> - "3000:3000"</span>
<span class="cmd"> volumes:</span>
<span class="cmd"> - calrs-data:/var/lib/calrs</span>
<span class="cmd"> environment:</span>
<span class="cmd"> - CALRS_BASE_URL=https://cal.example.com</span>
<span class="cmd"> restart: unless-stopped</span>
<span class="cmd"></span>
<span class="cmd">volumes:</span>
<span class="cmd"> calrs-data:</span></pre>
<pre class="install-code" id="tab-binary"><span class="comment"># Build from source</span>
<span class="cmd">cargo build --release</span>
<span class="comment"># Install binary + templates</span>
<span class="cmd">sudo cp target/release/calrs /usr/local/bin/</span>
<span class="cmd">sudo cp -r templates /var/lib/calrs/templates</span>
<span class="comment"># Create system user and start</span>
<span class="cmd">sudo useradd -r -s /bin/false -m -d /var/lib/calrs calrs</span>
<span class="cmd">sudo cp calrs.service /etc/systemd/system/</span>
<span class="cmd">sudo systemctl enable --now calrs</span></pre>
<pre class="install-code" id="tab-source"><span class="comment"># Clone and run from source</span>
<span class="cmd">git clone https://github.com/olivierlambert/calrs.git</span>
<span class="cmd">cd calrs</span>
<span class="cmd">cargo build --release</span>
<span class="cmd">./target/release/calrs serve --port 3000</span>
<span class="comment"># Register at http://localhost:3000</span></pre>
</div>
</div>
</section>
<!-- Tech stack -->
<section class="section" style="padding-top: 0;">
<div class="container">
<span class="section-label">Tech stack</span>
<h2 class="section-title">Built with boring, reliable technology</h2>
<p class="section-desc">No JavaScript frameworks. No microservices. Just Rust, SQLite, and HTML templates.</p>
<div class="stack-row">
<span class="stack-tag">🦀 Rust</span>
<span class="stack-tag">🗃 SQLite (WAL)</span>
<span class="stack-tag">⚡ Tokio</span>
<span class="stack-tag">🔬 Axum</span>
<span class="stack-tag">📄 Minijinja</span>
<span class="stack-tag">📅 CalDAV (RFC 4791 + 6578)</span>
<span class="stack-tag">📧 Lettre (SMTP)</span>
<span class="stack-tag">🔒 Argon2 + OIDC</span>
</div>
</div>
</section>
<!-- CTA -->
<section class="cta">
<div class="container">
<h2>Your time, your stack</h2>
<p>Cal.rs is free, open source, and self-hostable. Star the repo, try it out, and join the community.</p>
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