feat(site): pimp homepage with animated 3D background and scroll reveals
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Adopts the visual feel of Pascal's prototype while keeping Furtka's
voice, brand palette, and bilingual structure intact.

What changed
- Three.js wireframe torus-knot behind the hero, color/opacity tied
  to the existing --accent / --scene-opacity CSS vars so light and
  dark modes both work without a scene re-init.
- Scroll-driven camera zoom + core scale + tilt; canvas opacity fades
  past hero so feature cards stay readable.
- GSAP + ScrollTrigger reveal hero on load and stagger feature cards
  in as they enter the viewport. Lenis smooths scroll.
- "What works today" / "What's coming next" lists move from markdown
  bullets into front-matter arrays and render as scroll-reveal cards
  (7 + 4 cards, EN/DE parallel; copy is 1:1 from the original lists).
- Hero scaled up: gradient text on the wordmark (fg → accent),
  drop-shadow glow in dark mode, brighter lede color.
- Primary CTA -> /releases listing on Forgejo (Forgejo has no
  /releases/latest), with a pulsing glow + arrow slide on hover.
- Version bump 26.8-alpha -> 26.15-alpha to match the actual release.

Performance / a11y
- Vendor JS (Three.js r128, GSAP 3.12.2 + ScrollTrigger, Lenis 1.0.33)
  vendored locally under assets/js/vendor/ - no third-party CDN at
  runtime. ~728 KB total, fingerprinted via Hugo's pipeline with SRI.
- Canvas + scripts gated to homepage only ({{ if .IsHome }}); the
  Impressum/Datenschutz pages stay plain.
- prefers-reduced-motion: scene + GSAP early-return, CSS forces cards
  to their resting state. No-JS users see all content.
- All scripts deferred so first paint isn't blocked.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Daniel Maksymilian Syrnicki 2026-04-27 16:14:21 +02:00
parent 1cff22658b
commit aa7dea0528
16 changed files with 464 additions and 61 deletions

1
.gitignore vendored
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@ -13,3 +13,4 @@ iso/out/
website/public/
website/resources/
website/.hugo_build.lock
website/hugo_stats.json

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@ -6,6 +6,10 @@
--accent: #c03a28;
--accent-hover: #a0301f;
--border: #e4e3dc;
--accent-glow: rgba(192, 58, 40, 0.2);
--card-bg: rgba(247, 246, 243, 0.72);
--card-border: var(--border);
--scene-opacity: 0.18;
--font-sans:
-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
Arial, "Noto Sans", sans-serif;
@ -23,6 +27,10 @@
--accent: #ff6b56;
--accent-hover: #ff8b78;
--border: #232326;
--accent-glow: rgba(255, 107, 86, 0.4);
--card-bg: rgba(23, 23, 26, 0.65);
--card-border: #26262b;
--scene-opacity: 0.34;
}
}
@ -43,6 +51,25 @@ body {
flex-direction: column;
min-height: 100vh;
text-rendering: optimizeLegibility;
isolation: isolate;
}
/* ── Animated background canvas (home only) ─────────────── */
.scene-canvas {
position: fixed;
inset: 0;
width: 100vw;
height: 100vh;
z-index: 0;
pointer-events: none;
}
.site-header,
main.container,
.site-footer {
position: relative;
z-index: 1;
}
.container {
@ -171,11 +198,36 @@ main.container {
.home h1 {
font-family: var(--font-sans);
font-weight: 800;
font-size: clamp(3.25rem, 10vw, 6.5rem);
line-height: 0.95;
letter-spacing: -0.035em;
font-size: clamp(3.5rem, 14vw, 11rem);
line-height: 0.9;
letter-spacing: -0.04em;
margin: 0 0 1.5rem;
color: var(--fg);
background-image: linear-gradient(180deg, var(--fg) 0%, var(--accent) 110%);
-webkit-background-clip: text;
background-clip: text;
-webkit-text-fill-color: transparent;
}
@media (prefers-color-scheme: dark) {
.home h1 {
filter: drop-shadow(0 0 28px var(--accent-glow));
}
.home .lede {
color: #c8c8cc;
}
}
.hero {
min-height: 78vh;
display: flex;
flex-direction: column;
justify-content: center;
padding-block: 4.5rem 3rem;
}
.home .lede {
font-weight: 450;
}
.home .lede {
@ -258,3 +310,132 @@ main.container {
outline-offset: 3px;
border-radius: 2px;
}
/* ── Primary CTA ─────────────────────────────────────────── */
.cta-row { margin-top: 2.5rem; }
.cta {
display: inline-flex;
align-items: center;
gap: 0.55rem;
padding: 1.1rem 2rem;
font-family: var(--font-sans);
font-weight: 600;
font-size: 1.02rem;
letter-spacing: 0.005em;
text-decoration: none;
border-radius: 0.7rem;
transition: transform 180ms, box-shadow 180ms, background 180ms, color 180ms;
}
.cta--primary {
background: linear-gradient(135deg, var(--accent), var(--accent-hover));
color: #fff;
box-shadow: 0 10px 36px var(--accent-glow),
0 0 0 1px color-mix(in srgb, var(--accent) 40%, transparent);
animation: cta-pulse 2.8s ease-in-out infinite;
}
.cta--primary:hover {
transform: translateY(-3px);
box-shadow: 0 18px 52px var(--accent-glow),
0 0 0 1px var(--accent);
animation-play-state: paused;
}
.cta--primary:active { transform: translateY(-1px); }
.cta--primary span { transition: transform 180ms; }
.cta--primary:hover span { transform: translateX(4px); }
@keyframes cta-pulse {
0%, 100% { box-shadow: 0 10px 36px var(--accent-glow),
0 0 0 1px color-mix(in srgb, var(--accent) 40%, transparent); }
50% { box-shadow: 0 14px 48px var(--accent-glow),
0 0 0 1px color-mix(in srgb, var(--accent) 70%, transparent); }
}
@media (prefers-reduced-motion: reduce) {
.cta--primary { animation: none; }
}
/* ── Intro paragraph (home, between hero and feature grids) ─ */
.intro {
max-width: 38rem;
margin: 0 0 4rem;
font-size: 1.15rem;
line-height: 1.55;
color: var(--fg);
}
.intro p { margin: 0 0 1rem; }
.intro p:last-child { margin: 0; }
.intro strong { font-weight: 600; }
/* ── Feature sections (home) ─────────────────────────────── */
.feature-section { margin-block: 4rem; }
.section-eyebrow {
font-family: var(--font-sans);
font-weight: 500;
font-size: 0.72rem;
letter-spacing: 0.14em;
text-transform: uppercase;
color: var(--fg-muted);
margin: 0 0 1.25rem;
}
.feature-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
gap: 1rem;
}
.feature-card {
background: var(--card-bg);
border: 1px solid var(--card-border);
border-radius: 1rem;
padding: 1.5rem 1.5rem 1.4rem;
-webkit-backdrop-filter: blur(10px);
backdrop-filter: blur(10px);
transition: transform 240ms, border-color 240ms, box-shadow 240ms;
}
.feature-card:hover {
border-color: var(--accent);
box-shadow: 0 10px 32px var(--accent-glow);
transform: translateY(-2px);
}
.feature-card p {
margin: 0;
font-size: 1rem;
line-height: 1.55;
color: var(--fg);
}
.feature-card strong {
font-weight: 600;
color: var(--fg);
}
/* ── Closer prose (home, after feature grids) ────────────── */
.closer {
margin-top: 4rem;
max-width: var(--measure);
}
/* ── Reveal-on-load (hero) and reveal-on-scroll (cards) ──── */
.js .reveal,
.js [data-gsap="card"] {
opacity: 0;
transform: translateY(40px);
will-change: opacity, transform;
}
@media (prefers-reduced-motion: reduce) {
.scene-canvas { display: none; }
.js .reveal,
.js [data-gsap="card"] {
opacity: 1 !important;
transform: none !important;
will-change: auto;
}
}

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@ -0,0 +1,25 @@
(function () {
if (window.matchMedia('(prefers-reduced-motion: reduce)').matches) return;
if (!window.gsap || !window.ScrollTrigger || !window.Lenis) return;
gsap.registerPlugin(ScrollTrigger);
const lenis = new Lenis({ lerp: 0.1, smoothWheel: true });
lenis.on('scroll', ScrollTrigger.update);
gsap.ticker.add((time) => { lenis.raf(time * 1000); });
gsap.ticker.lagSmoothing(0);
// Hero stagger — runs once on load.
gsap.to('.hero .reveal', {
y: 0, opacity: 1, duration: 1.1, ease: 'power3.out', stagger: 0.12
});
// Card reveals — batched so cards in the same row come in together.
ScrollTrigger.batch('[data-gsap="card"]', {
start: 'top 90%',
onEnter: (els) => gsap.to(els, {
y: 0, opacity: 1, scale: 1,
duration: 0.9, ease: 'power3.out', stagger: 0.08, overwrite: true
})
});
})();

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@ -0,0 +1,98 @@
(function () {
if (window.matchMedia('(prefers-reduced-motion: reduce)').matches) return;
if (!window.WebGLRenderingContext || !window.THREE) return;
const canvas = document.getElementById('scene');
if (!canvas) return;
const root = document.documentElement;
const readVar = (name) => getComputedStyle(root).getPropertyValue(name).trim();
const readOpacity = () => parseFloat(readVar('--scene-opacity')) || 0.18;
const scene = new THREE.Scene();
const camera = new THREE.PerspectiveCamera(
60, window.innerWidth / window.innerHeight, 0.1, 100
);
const renderer = new THREE.WebGLRenderer({ canvas, antialias: true, alpha: true });
renderer.setSize(window.innerWidth, window.innerHeight, false);
renderer.setPixelRatio(Math.min(window.devicePixelRatio || 1, 2));
const geometry = new THREE.TorusKnotGeometry(2.5, 0.4, 130, 20);
const material = new THREE.MeshPhongMaterial({
color: readVar('--accent') || '#c03a28',
wireframe: true,
transparent: true,
opacity: readOpacity()
});
const core = new THREE.Mesh(geometry, material);
scene.add(core);
scene.add(new THREE.AmbientLight(0xffffff, 0.6));
const dir = new THREE.DirectionalLight(0xffffff, 0.8);
dir.position.set(5, 5, 5);
scene.add(dir);
const BASE_Z = 9;
camera.position.z = BASE_Z;
let scrollY = window.scrollY || 0;
window.addEventListener('scroll', () => {
scrollY = window.scrollY || 0;
}, { passive: true });
let baseOpacity = readOpacity();
let running = true;
function tick() {
if (!running) return;
requestAnimationFrame(tick);
// Continuous slow drift.
core.rotation.y += 0.0015;
core.rotation.z += 0.0006;
// Scroll-driven motion: zoom in, scale up, tilt.
const s = Math.min(scrollY, 2000);
camera.position.z = BASE_Z - s * 0.0022;
const scale = 1 + s * 0.00035;
core.scale.set(scale, scale, scale);
core.rotation.x = s * 0.0008;
// Fade past hero so feature cards stay readable.
const vh = window.innerHeight;
const fadeStart = vh * 0.5;
const fadeEnd = vh * 1.4;
const t = Math.max(0, Math.min(1, (scrollY - fadeStart) / (fadeEnd - fadeStart)));
material.opacity = baseOpacity * (1 - t * 0.92);
renderer.render(scene, camera);
}
tick();
window.addEventListener('resize', () => {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight, false);
});
document.addEventListener('visibilitychange', () => {
if (document.hidden) {
running = false;
} else if (!running) {
running = true;
tick();
}
});
const mql = window.matchMedia('(prefers-color-scheme: dark)');
const updateTheme = () => {
const accent = readVar('--accent');
if (accent) material.color.set(accent);
baseOpacity = readOpacity();
};
if (mql.addEventListener) {
mql.addEventListener('change', updateTheme);
} else if (mql.addListener) {
mql.addListener(updateTheme);
}
})();

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@ -0,0 +1,19 @@
# Vendored JavaScript libraries
These minified bundles are checked into the repo so furtka.org has zero
third-party-CDN dependencies at runtime. Pin date: **2026-04-27**.
| File | Version | Source |
|---|---|---|
| `three.min.js` | r128 | https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js |
| `gsap.min.js` | 3.12.2 (core only) | https://cdnjs.cloudflare.com/ajax/libs/gsap/3.12.2/gsap.min.js |
| `ScrollTrigger.min.js` | 3.12.2 | https://cdnjs.cloudflare.com/ajax/libs/gsap/3.12.2/ScrollTrigger.min.js |
| `lenis.min.js` | @studio-freight/lenis 1.0.33 | https://unpkg.com/@studio-freight/lenis@1.0.33/dist/lenis.min.js |
All four expose UMD globals (`THREE`, `gsap`, `ScrollTrigger`, `Lenis`).
None are ES modules, so no `js.Build` step is needed — Hugo just fingerprints them.
GSAP "Club" plugins (SplitText, MorphSVG, etc.) are **not** free for commercial use.
Only `gsap` core + `ScrollTrigger` (both standard MIT-style license) are bundled.
To refresh: re-run `curl -sSfL -o <file> <url>` and bump the pin date here.

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website/assets/js/vendor/lenis.min.js vendored Normal file

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@ -1,33 +1,33 @@
---
title: "Furtka"
description: "Offenes Heimserver-Betriebssystem — einfach genug für alle."
status: "<span class=\"mono\">26.8-alpha</span> — in Arbeit"
status: "<span class=\"mono\">26.15-alpha</span> — in Arbeit"
# features_today / features_next müssen index-parallel zu content/_index.md bleiben.
intro: |
**Furtka** ist ein offenes Heimserver-Betriebssystem.
USB-Stick einstecken, durch einen Assistenten klicken, und aus jedem
alten Rechner wird eine private Cloud für den Haushalt — mit eigenen
Apps, eigenem Namen im Netz, eigenen Daten.
Das Ziel ist einfach: **dein Vater soll das einrichten können.**
features_today_label: "Was heute schon geht"
features_today:
- "Vom USB-Stick booten und Furtka auf die Festplatte einrichten"
- "Ein Assistent fragt nach Name, Benutzer und Netzwerk — fertig"
- "Danach: Bedienseite im Browser öffnen"
- "Erste App: **Dateifreigabe im Heimnetz** (alle im WLAN sehen den Ordner)"
- "Apps mit einem Klick installieren und entfernen"
- "Eine installierte App mit einem Klick aktualisieren (holt das neueste Container-Image)"
- "Furtka selbst mit einem Klick aktualisieren — keine Neuinstallation mehr für neue Features"
features_next_label: "Was als Nächstes kommt"
features_next:
- "Apps für Fotos, Dateien, Smarthome, Spiele-Streaming und Medien"
- "Einfachere Sprache im Einrichtungs-Assistenten"
- "Sichere Verbindung im Heimnetz (ohne Warnmeldung im Browser)"
- "Mehrere Server zusammenschalten"
---
**Furtka** ist ein offenes Heimserver-Betriebssystem.
USB-Stick einstecken, durch einen Assistenten klicken, und aus jedem
alten Rechner wird eine private Cloud für den Haushalt — mit eigenen
Apps, eigenem Namen im Netz, eigenen Daten.
Das Ziel ist einfach: **dein Vater soll das einrichten können.**
### Was als Nächstes kommt
- Apps für Fotos, Dateien, Smarthome, Spiele-Streaming und Medien
- Einfachere Sprache im Einrichtungs-Assistenten
- Sichere Verbindung im Heimnetz (ohne Warnmeldung im Browser)
- Mehrere Server zusammenschalten
### Was heute schon geht
- Vom USB-Stick booten und Furtka auf die Festplatte einrichten
- Ein Assistent fragt nach Name, Benutzer und Netzwerk — fertig
- Danach: Bedienseite im Browser öffnen
- Erste App: **Dateifreigabe im Heimnetz** (alle im WLAN sehen den Ordner)
- Apps mit einem Klick installieren und entfernen
- Eine installierte App mit einem Klick aktualisieren (holt das neueste Container-Image)
- Furtka selbst mit einem Klick aktualisieren — keine Neuinstallation mehr für neue Features
Wir sind zu zweit und bauen das öffentlich, abends und am Wochenende.
Es ist früh.
Mitlesen? Schreib an <a href="mailto:hallo@furtka.org">hallo@furtka.org</a>.
Mitlesen? Schreib an <hallo@furtka.org>.

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@ -1,33 +1,33 @@
---
title: "Furtka"
description: "Open-source home server OS — simple enough for everyone."
status: "<span class=\"mono\">26.8-alpha</span> — work in progress"
status: "<span class=\"mono\">26.15-alpha</span> — work in progress"
# Keep features_today / features_next index-aligned with content/_index.de.md.
intro: |
**Furtka** is an open-source home server OS.
Boot from USB, click through a wizard, and any old computer
turns into a private cloud for your household — with your own apps,
your own name on the network, your own data.
The goal is simple: **your dad should be able to set this up.**
features_today_label: "What works today"
features_today:
- "Boot from USB stick and install Furtka onto the hard drive"
- "A wizard asks for name, user and network — done"
- "Then: open the control page in your browser"
- "First app: **file sharing on the home network** (everyone on Wi-Fi sees the folder)"
- "Install and remove apps with one click"
- "Update an installed app with one click (pulls the newest container image)"
- "Update Furtka itself with one click — no reinstalling for new features"
features_next_label: "What's coming next"
features_next:
- "Apps for photos, files, smart home, game streaming and media"
- "Plainer language in the setup wizard"
- "Secure connection on your home network (no browser warning)"
- "Linking several servers together"
---
**Furtka** is an open-source home server OS.
Boot from USB, click through a wizard, and any old computer
turns into a private cloud for your household — with your own apps,
your own name on the network, your own data.
The goal is simple: **your dad should be able to set this up.**
### What's coming next
- Apps for photos, files, smart home, game streaming and media
- Plainer language in the setup wizard
- Secure connection on your home network (no browser warning)
- Linking several servers together
### What works today
- Boot from USB stick and install Furtka onto the hard drive
- A wizard asks for name, user and network — done
- Then: open the control page in your browser
- First app: **file sharing on the home network** (everyone on Wi-Fi sees the folder)
- Install and remove apps with one click
- Update an installed app with one click (pulls the newest container image)
- Update Furtka itself with one click — no reinstalling for new features
We're two people building it in public on evenings and weekends.
It's early.
Want to follow along? Write to <a href="mailto:hallo@furtka.org">hallo@furtka.org</a>.
Want to follow along? Write to <hallo@furtka.org>.

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@ -6,7 +6,7 @@ enableRobotsTXT = true
[params]
description = "Open-source home server OS — simple enough for everyone."
version = "26.8-alpha"
version = "26.15-alpha"
contactEmail = "hallo@furtka.org"
[markup.goldmark.renderer]

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@ -1,13 +1,15 @@
<!DOCTYPE html>
<html lang="{{ .Site.Language.Lang }}">
<html lang="{{ .Site.Language.Lang }}" class="no-js">
<head>
{{ partial "head.html" . }}
</head>
<body>
{{ if .IsHome }}<canvas id="scene" class="scene-canvas" aria-hidden="true"></canvas>{{ end }}
{{ partial "header.html" . }}
<main class="container">
{{ block "main" . }}{{ end }}
</main>
{{ partial "footer.html" . }}
{{ if .IsHome }}{{ partial "scripts.html" . }}{{ end }}
</body>
</html>

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@ -2,13 +2,46 @@
<article class="home">
<header class="hero">
{{ with .Params.status }}
<p class="status-chip">{{ . | safeHTML }}</p>
<p class="status-chip reveal">{{ . | safeHTML }}</p>
{{ end }}
<h1>{{ .Title }}</h1>
{{ with site.Params.description }}<p class="lede">{{ . }}</p>{{ end }}
<h1 class="reveal">{{ .Title }}</h1>
{{ with site.Params.description }}<p class="lede reveal">{{ . }}</p>{{ end }}
<p class="cta-row reveal">
<a class="cta cta--primary" href="https://forgejo.sourcegate.online/daniel/furtka/releases">
{{ if eq site.Language.Lang "de" }}Neuestes Release{{ else }}Latest release{{ end }}
<span aria-hidden="true"></span>
</a>
</p>
</header>
<div class="prose">
{{ .Content }}
</div>
{{ with .Params.intro }}
<section class="intro">{{ . | markdownify }}</section>
{{ end }}
{{ if .Params.features_today }}
<section class="feature-section">
{{ with .Params.features_today_label }}<p class="section-eyebrow">{{ . }}</p>{{ end }}
<div class="feature-grid">
{{ range .Params.features_today }}
<article class="feature-card" data-gsap="card">{{ . | markdownify }}</article>
{{ end }}
</div>
</section>
{{ end }}
{{ if .Params.features_next }}
<section class="feature-section">
{{ with .Params.features_next_label }}<p class="section-eyebrow">{{ . }}</p>{{ end }}
<div class="feature-grid">
{{ range .Params.features_next }}
<article class="feature-card" data-gsap="card">{{ . | markdownify }}</article>
{{ end }}
</div>
</section>
{{ end }}
{{ with .Content }}
<section class="prose closer">{{ . }}</section>
{{ end }}
</article>
{{ end }}

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@ -1,7 +1,10 @@
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<script>document.documentElement.classList.replace('no-js','js');</script>
<title>{{ if .IsHome }}{{ site.Title }} — {{ site.Params.description }}{{ else }}{{ .Title }} · {{ site.Title }}{{ end }}</title>
<meta name="description" content="{{ with .Params.description }}{{ . }}{{ else }}{{ site.Params.description }}{{ end }}">
<meta name="theme-color" content="#f7f6f3" media="(prefers-color-scheme: light)">
<meta name="theme-color" content="#0d0d0f" media="(prefers-color-scheme: dark)">
<link rel="icon" type="image/svg+xml" href="/favicon.svg">
<meta property="og:site_name" content="{{ site.Title }}">
<meta property="og:title" content="{{ if .IsHome }}{{ site.Title }}{{ else }}{{ .Title }} · {{ site.Title }}{{ end }}">

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@ -0,0 +1,12 @@
{{ $three := resources.Get "js/vendor/three.min.js" | fingerprint }}
{{ $gsap := resources.Get "js/vendor/gsap.min.js" | fingerprint }}
{{ $st := resources.Get "js/vendor/ScrollTrigger.min.js" | fingerprint }}
{{ $lenis := resources.Get "js/vendor/lenis.min.js" | fingerprint }}
{{ $scene := resources.Get "js/scene.js" | fingerprint }}
{{ $anim := resources.Get "js/animations.js" | fingerprint }}
<script defer src="{{ $three.RelPermalink }}" integrity="{{ $three.Data.Integrity }}"></script>
<script defer src="{{ $gsap.RelPermalink }}" integrity="{{ $gsap.Data.Integrity }}"></script>
<script defer src="{{ $st.RelPermalink }}" integrity="{{ $st.Data.Integrity }}"></script>
<script defer src="{{ $lenis.RelPermalink }}" integrity="{{ $lenis.Data.Integrity }}"></script>
<script defer src="{{ $scene.RelPermalink }}" integrity="{{ $scene.Data.Integrity }}"></script>
<script defer src="{{ $anim.RelPermalink }}" integrity="{{ $anim.Data.Integrity }}"></script>