FVLA Documentation

Everything you need to integrate and use the Lumenexus Framework

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What is FVLA?

Focus View Lumenexus Absolute (FVLA) is a JavaScript framework built around the Focus View engine — a browser-driven scaling system that replaces traditional layout guesswork with mathematical precision. Instead of wrestling with breakpoints, endless media queries, and fragile CSS overrides, FVLA lets you define a logical visual system that adapts smoothly across devices.

FVLA runs server-side while providing real-time visual feedback in the browser. That means you see changes instantly as you build — without bloated tooling or unnecessary abstraction layers. The result is a cleaner development flow and a more immersive user experience.

Designed by Nicholis Seeley, FVLA was built for developers who want precision and control without sacrificing performance. It does not replace your creativity — it removes structural resistance so you can focus on design logic instead of defensive CSS.

✦ Want to feel it before you buy?

Try FVSimpleScale — a free 24-hour demo npm package powered by the same FV engine. Install it, grab a free trial key, and scale text on your own project right now. No card required.

Get Your Free Trial Key →
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Server-Side Engine

Core logic runs on Cloudflare Workers. Your users get real-time responses with zero server management.

License-Gated

Engine access is verified via your FVLA license key. One key per tier, verified at runtime.

Zero Boilerplate

Skip unnecessary media queries and setup code. FVLA handles responsive scaling through mathematical precision, not conditional rules.

Real-Time Feedback

Visual changes propagate instantly to the browser, making design iteration fast and intuitive.

Presence Field System

FVLA tracks cursor velocity and proximity to calculate a live presence value — driving reactive glow, scale, and color shifts across any element.

Flow-Reactive Rendering

Movement speed and direction are computed server-side and fed back as normalized values, letting your UI breathe and respond naturally to how users interact.

FVSimpleScale — Free 24-Hour Trial

FVSimpleScale is a standalone npm package that gives developers a direct, hands-on experience of the FV text scaling engine — free for 24 hours. It is purpose-built as an entry point to the Lumenexus ecosystem: minimal setup, immediate results, powered by the same worker infrastructure as the full framework.

When you generate a trial key on the FVSimpleScale page, the Lumenexus worker issues a time-locked key valid for 24 hours. After that window, the worker invalidates the key server-side and the watermark locks the package to trial-only display. Upgrade to a full FVLA license to remove the watermark and unlock all engine capabilities.

Three lines of code. The FV engine, live on your project.

Step 1 — Get Your Free Trial Key

Visit the FVSimpleScale page, enter your email, and receive a 24-hour trial key instantly. The key is generated and time-stamped by the Lumenexus worker — no account required.

main.fvsimplescale.pages.dev

Step 2 — Install the Package

npm install fvsimplescale

Step 3 — Import and Use

import { FVSS, simpleScale } from 'fvsimplescale';

// Scale up — any CSS selector, any factor
simpleScale('p, h1', { factor: 1.1, duration: 400 });

// Scale down
simpleScale('p', { factor: 0.9, duration: 300 });

// Pulse effect — snap attention to a heading
simpleScale('h1', { factor: 1.15, duration: 200 });
setTimeout(() => simpleScale('h1', { factor: 1 / 1.15, duration: 200 }), 250);

Using FVSS with Your Trial Key

import { FVSS } from 'fvsimplescale';

await FVSS('p, h1, .hero-text', {
    licenseKey: 'FVSS-TRIAL-XXXX-XXXX',
    factor:     1.12,
    duration:   450,
});

Trial Behavior

Trial vs. Full FVLA

FeatureFVSimpleScale TrialFull FVLA License
Text scaling engine✦ Active (24h)✦ Permanent
WatermarkVisibleNone
Key expiry24 hoursNever
Presence Field System✦ Included
Flow-Reactive Rendering✦ Included
FVGrid (bundle tiers)✦ Bundle only
StratoStrate™ substrate✦ Included
Production domain support1–10 domains
1 year updates✦ Included
PriceFreeFrom $39

What Problems Does FVLA Solve?

Modern front-end development is overloaded with repetition. Sound familiar?

You stop firefighting responsiveness and start designing intentionally.

What Can FVLA Be Used For?

Immersive Landing Pages

FVLA's reactive engine enables landing pages that respond dynamically to user presence and interaction — creating scroll-driven animations, cursor-reactive elements, and fluid transitions that feel alive rather than scripted.

Interactive Product Showcases

Use FVLA to build product demo pages where 3D-style elements, glowing highlights, and real-time scaling create a premium feel that static CSS simply cannot achieve.

Developer Portfolios

FVLA gives individual developers a toolkit to build standout portfolio sites with signature visual effects — presence fields, flow-reactive grids, and dynamic text scaling.

Web Applications & Dashboards

Integrate FVLA into existing React, Vue, or vanilla JS applications to layer in reactive UI behavior without replacing your existing stack.

Creative Agencies & Client Work

The 5-Pack and 10-Pack tiers are designed for agencies delivering FVLA-powered experiences to multiple clients.

How FVLA Works

At its core, FVLA introduces a scaling logic layer between the viewport and your layout. Instead of reacting to screen size with breakpoints, FVLA applies proportional scaling through the Focus View engine.

You define structure. FVLA handles dimensional logic.

Why FVLA Is Different

FVLA simplifies complexity by removing it.

It is not a design system. It is not an opinionated component library. It is a precision tool for developers who already understand layout fundamentals and want to stop writing defensive CSS.

Installation

npm install @lumenexus-fvla/fvla

FVLA requires Node.js 18+ and supports both ESM and CommonJS projects.

Requirements

How To Use

Basic Initialization

import { init } from '@lumenexus-fvla/fvla';

const engine = await init('FVLA-XXXX-XXXX-XXXX');

console.log(engine.tier);
console.log(engine.uses);
console.log(engine.isValid);

Error Handling

try {
    const engine = await init('FVLA-XXXX-XXXX-XXXX');
} catch (err) {
    console.error(err.message);
}

What is FVGrid?

FVGrid is an optional layout extension built to work directly with the FVLA scaling engine — introducing a responsive column system that adapts mathematically, not conditionally.

FVLA controls scale. FVGrid controls spatial rhythm.

Note: FVGrid is available only in Bundle tiers.

Stratostrate™ Substrate

Stratostrate is the structural substrate beneath the Focus View engine. It is a dimensional modeling layer — the architectural foundation that governs how proportional relationships are preserved across typography, spacing, and layout before they ever reach the viewport.

Breakpoints approximate. Stratostrate calculates.

Architectural Model

  Viewport Input
        ↓
  Stratostrate  ←  Dimensional Modeling Layer
        ↓
  Focus View Engine
        ↓
  Rendered Interface

Engine Object

interface FVLAEngine {
    licenseKey: string;
    tier:       string;
    uses:       number;
    created:    string;
    isValid:    boolean;
}

License Tiers

TierIncludesDomainsPrice
Try Before You Buy
FVSimpleScale TrialText scaling + watermarkFree (24h)
FVLA Core
Single LicenseFVLA engine1$39
5-PackFVLA engine5$129
10-PackFVLA engine10$219
FVLA + FVGrid Bundle
Single BundleFVLA engine + FVGrid1$59
5-Pack BundleFVLA engine + FVGrid5$169
10-Pack BundleFVLA engine + FVGrid10$279

Ready to build with FVLA?

Try FVSimpleScale free for 24 hours — or purchase a full license and unlock everything.

✦ Try Free — No Card Needed Get Your License