remocn

name	remocn
description	Build Remotion videos with remocn — copy-paste animation components and timeline-driven UI primitives from a shadcn registry. Use when composing a video or scene in a Remotion project, adding a single animation, transition, background, or UI-block sim, or reaching for a video-ready UI primitive (button, dialog, command menu). Activate for polished Remotion video work even when remocn isn't named.

remocn

Copy-paste components for Remotion videos. Components install via shadcn and land in components/remocn/ — you own the code.

The catalog lives at remocn.dev

This skill does not carry a copy of the component catalog. There are ~240 components and they change; a bundled copy goes stale silently. Read the live docs instead.

Start every component search here:

https://remocn.dev/llms-components.txt

One table per category, every installable component, each row carrying Use for / Avoid for, natural length, vibe, tier, dependencies, and a link to its full page. Scan it, shortlist, then fetch only the pages you shortlisted.

One component's full reference — props with descriptions, worked examples, all use / don't-use notes — is the docs URL with .md appended:

https://remocn.dev/docs/typography/blur-out-up.md
https://remocn.dev/docs/transitions/whip-pan.md
https://remocn.dev/docs/ui/components/dialog.md

The index gives you the exact URL per component — don't guess the section from the name, several components live somewhere non-obvious.

Fetch with whatever your environment provides (a web-fetch tool, curl, WebFetch). If the network is unavailable, say so and stop — do not invent props, defaults, or durations from memory, and do not substitute a component you have not read. A wrong prop name fails at build; an invented duration silently clips the animation.

Installation

Prerequisites: a Remotion project (npx create-video@latest).

shadcn add @remocn/blur-out-up

@remocn/<name> is the canonical namespaced form (configured under registries in components.json). The plain registry URL https://remocn.dev/r/<name>.json also works.

Dependencies install automatically

Many components pull others via registryDependencies — shadcn installs them transitively. For example, shadcn add @remocn/typewriter also pulls @remocn/remocn-ui and @remocn/caret.

• @remocn/remocn-ui is the shared core lib (timeline-fold hook, theme context, color math). Most UI Primitives depend on it. You rarely install it directly.

Two tiers

remocn has two kinds of components — they have different APIs:

• Animation tier (remocn) — text animations, transitions, backgrounds, UI-block sims, brand/social cards, full compositions. Frame-driven. Shared props: speed (time multiplier), and for text: fontSize, color, fontWeight.
• UI Primitives (remocn-ui) — timeline-driven shadcn-style primitives (button, dialog, select, command-menu, tooltip…). State-based props (state, style, variant, theme). No speed prop. Built on @remocn/remocn-ui.

The index's Tier column tells you which one you are looking at before you open the page.

Component patterns

Conventions differ by tier — don't assume animation-tier props on a primitive.

Animation tier (remocn)

• Named Props interface per component (e.g. BlurOutUpProps).
• speed?: number — global time multiplier (default 1), applied as frame * speed.
• Text components: fontSize, color, fontWeight.
• Transitions: lowercase factories (e.g. whipPan(props)) returning a TransitionPresentation — pass to TransitionSeries.Transition via presentation, pace with linearTiming / springTiming.
• className?: string on the root.

Not everything filed under transitions is a presentation: slide-swap and spring-settle are scene sequencers that take a scenes array and own the whole timeline. The page says which one you have.

UI Primitives (remocn-ui)

• State-based, not speed-based: state (e.g. "open" / "closed"), style, variant, size, theme?: Partial<RemocnTheme>.
• The opened/closed/active state is a pure function of the timeline (keyframed presets).
• Compose modal-layer primitives (dialog, alert-dialog, drawer) with a trigger element — see each component's example.

Animation API

import { interpolate, spring, useCurrentFrame, useVideoConfig } from "remotion";

const opacity = interpolate(frame, [0, 30], [0, 1], { extrapolateRight: "clamp" });
const scale = spring({ fps, frame, config: { damping: 12, mass: 1, stiffness: 100 } });

// Deterministic randomness (NEVER Math.random())
import { random } from "@remotion/random";
const jitter = random(`seed-${frame}`);

Composition structure

import { Sequence, Series } from "remotion";

<Sequence from={30} durationInFrames={60}>
  <Typewriter text="npm install remocn" />
</Sequence>

<Series>
  <Series.Sequence durationInFrames={60}><SceneA /></Series.Sequence>
  <Series.Sequence durationInFrames={60}><SceneB /></Series.Sequence>
</Series>

Canvas & timing

• Canvas standard: 1280×720 @ 30fps. Components are laid out for it.
• Length is the component's own motion, not the whole beat. For a transition it is the value to pass to linearTiming / springTiming; for everything else it is the frame the animation finishes on. Treat it as the floor for the Sequence and add hold time when the element should stay on screen after it settles. state-driven means the component renders from its state prop and has no duration of its own.
• Tone matching: each entry carries a vibe tag (tech/premium/data/clean/playful/ social/paper) — pick components whose vibe fits the brand. paper is the stop-motion kit: a quantized ~10-poses-per-second clock, handwriting and ink. Those components read as one world, so mix them with each other rather than with the smooth tiers.

Design defaults — avoid AI-slop

Your own additions (text, scene chrome, cards — not the prebuilt components) stay restrained: default tracking, sentence case, solid text color, subtle 1px elevation — no decorative letter-spacing, ALL-CAPS, gradient text-fills, or glow shadows. Never strip these traits from a component whose essence is the effect (tracking-in, social-card gradients, designed elevation).

Full do/avoid examples, design tokens, motion principles and the anti-pattern list live in the Craft section:

https://remocn.dev/docs/craft/design-defaults.md
https://remocn.dev/docs/craft/motion-principles.md
https://remocn.dev/docs/craft/anti-patterns.md

Gotchas (remocn-specific)

• Terminal scroll is instant — step-function translateY, never spring/ease the scroll.
• overflow: hidden on split layouts — prevents content breakage during width animations.
• Cursor blink is deterministic — Math.floor(frame / 15) % 2 === 0, not intervals.
• Static files go in public/ — load via staticFile('cursor.svg'), not imports.
• Social cards render offline — avatarUrl="" / coverUrl="" fall back to gradients; no fetch.

General Remotion rules (no Math.random(), no setInterval, animate transform not top/left, load fonts before render) live in the remotion-best-practices skill.

Composing a video

Don't dump components — compose one story. When asked to build a full video ("make a product demo", "changelog video", "intro for my landing"):

1. Decide the strategy — ready template vs compose from components vs build a new component. See references/anatomy.md §1.
2. Follow the beats — a product demo is Hook → Positioning → Product reveal → Features → Proof → CTA (last two optional). See references/anatomy.md §2.
3. Use the recipe — references/archetypes/index.md routes to per-archetype builds: content contract (infer → ask → placeholder), duration variants, beat→component slots, and a worked <TransitionSeries> skeleton.
4. Pick each beat's component from https://remocn.dev/llms-components.txt; match the vibe tag to the brand and budget its Sequence per Canvas & timing above.
5. Check the quality bar — one accent, sentence-case kinetic type, real content, no glow halos, no feature-list enumeration. See references/anatomy.md §3.

Reference

Bundled with this skill — the judgment that does not change per component:

• references/anatomy.md — composing a full video: strategy (template/compose/new), the product-demo beats, and the good-vs-slop quality bar.
• references/archetypes/index.md — router to per-archetype build recipes (product-demo flagship + changelog, feature-announcement, oss-showcase, cli-tool-demo, testimonial-reel, year-in-review, pricing-reveal, logo-bumper): content contract, duration variants, beat→slot map.

Fetched from remocn.dev — everything that tracks the components:

• https://remocn.dev/llms-components.txt — the component index. Always start here.
• https://remocn.dev/docs/<section>/<name>.md — one component's full reference.
• https://remocn.dev/docs/craft/design-defaults.md — anti-slop defaults and design tokens.
• https://remocn.dev/docs/craft/motion-principles.md — motion principles adapted to remocn.
• https://remocn.dev/docs/craft/anti-patterns.md — common generation mistakes and their fixes.
• https://remocn.dev/llms.txt — index of the whole documentation, if you need something else.