Documentation & Legal

Build with Stacklumen.

Guides for working with us, what we ship today, what's actively in development — and the legal terms that govern every engagement. This page is the canonical reference for both.

Version v0.5.0
Updated May 5, 2026
Status Live
Sections Docs · Legal
01.01 / Introduction

Welcome to Stacklumen.

Stacklumen is a software company in Lexington, KY and Memphis, TN. We build Webflow sites, ship custom applications, and develop tooling for ourselves and the agencies we partner with. This documentation covers how to work with us, and the legal sections below cover the terms that govern that work.

[ Heads up ]
This is a software company building products in addition to client work. Our products — Hublumen, Baselumen, Stacklumen AI — are in active development. Today, the way to work with us is through engagements outlined below.
01.02 / How We Work

How we work

Four phases on every engagement. No bloated discovery decks, no surprise scope, no theater.

  1. 01 / Discover
    Scope and proposal in 72 hours.

    A focused intro call, a written brief, and a fixed proposal back to you within three business days. No drawn-out sales cycles.

  2. 02 / Design
    Design in motion.

    Static comps are dead. We design in Figma and prototype in code — what you approve is what ships.

  3. 03 / Build
    Ship weekly.

    Weekly demos on a staging URL. Feedback in-context, never "the reveal." You see real progress, not slides about progress.

  4. 04 / Launch
    Handover with full ownership.

    Full code ownership, written documentation, and 60 days of post-launch support included on every project.

01.03 / Starting an Engagement

Starting an engagement

The fastest way in is a short note via the support page. Tell us what you're building, who it's for, and any constraints. We'll respond within 24 hours.

What helps in your first message

  • A one-line summary of what you're building or fixing
  • Your timeline — soft target or hard deadline
  • Budget range, even rough — saves a round of back-and-forth
  • Links to existing site, Figma, or anything we should look at
[ Tip ]
Not sure if your project is a fit? Send it anyway. We'll either say yes, point you to a partner that's a better match, or share notes on the approach for free.
02.01 / Webflow Development

Webflow development

Our core practice. Custom Webflow builds with hand-rolled GSAP animations, Lenis smooth scroll, Finsweet integrations, and embedded systems that stay under platform limits.

What we build

Custom Builds
Full custom Webflow sites with animation systems and CMS architecture. Starting at $8,500.
Migrations
Wix, Squarespace, and WordPress to Webflow without losing SEO equity. Starting at $4,200.
Retainers
Monthly hours for ongoing CMS work, A/B tests, and feature additions. From $1,800/mo.
[ Note ]
All starting prices on this page are reference figures. Final pricing is set in a written proposal after a discovery conversation. See 06.02 — Pricing & estimator for the full disclaimer.

The toolchain we reach for

Every Webflow project leans on the same battle-tested stack:

embed.js webflow
// GSAP + Lenis, < 50KB compressed
import { gsap } from 'gsap';
import Lenis from '@studio-freight/lenis';
 
const lenis = new Lenis({ lerp: 0.1 });
02.02 / App Development

App development

For teams that need more than a marketing site. We build production applications — SaaS platforms, internal tools, marketplaces, client portals — on a modern TypeScript stack.

Our default stack

Frontend
Next.js or Astro, TypeScript, Tailwind, Radix UI primitives
Backend
Supabase, Postgres, edge functions where they make sense
Auth & billing
Supabase Auth or Clerk, Stripe for billing
Infrastructure
Vercel for hosting, Sentry for observability, GitHub Actions for CI/CD

App engagements typically run 8–12 weeks and start at $24,000. We embed with your team, ship weekly, and hand over a fully owned codebase with documentation.

02.03 / Agency Partnerships

Agency partnerships

White-label development capacity for design agencies. Your brand, your client relationship — our engineering team behind the scenes.

How partnerships work

  • Monthly retainer for a defined block of hours, starting at $6,000/mo
  • Direct Slack channel between our team and yours
  • NDA and white-label by default — we don't appear to your client
  • Webflow, custom code, app development, or any mix
[ Note ]
We work with a small number of agency partners at a time to keep responsiveness high. Reach out via the support page to discuss capacity.
03.01 / Hublumen

Hublumen In Development

A component library application. Browse, preview, and copy production-ready Webflow embeds and React components developed across our agency work — all in one place, with live previews and direct copy.

What it includes

  • Webflow embeds with live previews and one-click copy
  • React + TypeScript components with Radix UI and Tailwind
  • GSAP and Lenis animation patterns
  • Finsweet integration recipes
  • Search, filtering, and category browse
[ Status ]
Hublumen is in active development. No public release yet. Features described here are aspirational and subject to change. See 06.04 — Products in development for the full disclaimer.
03.02 / Baselumen

Baselumen In Development

A client portal application built for agencies and the teams they serve. Project status, invoices, file delivery, feedback rounds, and async approvals — all in a single workspace.

What it does

Project status
Live milestone tracking with weekly demos and staging URLs
Approvals
In-context feedback with threaded comments tied to specific deliverables
Files
Version-tracked file delivery with download history
Billing
Stripe-backed invoicing and payment status
[ Status ]
Baselumen is in active development. We're using it internally with a small group of partners. Public availability planned to follow Hublumen, with no committed launch date.
03.03 / Stacklumen AI

Stacklumen AI Roadmap

A Webflow-native AI co-builder trained on our patterns and embed library. Generate animation timelines, debug class conflicts, translate Figma frames into production-ready embeds.

Currently scoping the first release. Build order is Hublumen first, then Baselumen, then this. See the full roadmap →

04.01 / The Stack

The stack

We're opinionated about tools because they shape outcomes. This is what we reach for on every engagement.

[ CMS ]
Webflow — marketing and content sites
[ Framework ]
Next.js — production applications
[ Static ]
Astro — content-heavy sites
[ Commerce ]
Shopify — DTC and ecommerce
[ Animation ]
GSAP — timelines and ScrollTrigger
[ Scroll ]
Lenis — smooth scroll engine
[ Primitives ]
Radix UI — accessible components
[ Styling ]
Tailwind — utility-first CSS
04.02 / Design Tokens

Design tokens

The token system we use across our own properties — Webflow embeds, the Hub, and product surfaces.

tokens.css css
:root {
  --accent: #0075ff;
  --text: #0a0a0a;
  --bg: #fff;
  --border: #ebebeb;
  --radius: 2px;
}

Once Hublumen ships, these tokens will be exportable as Webflow variable sets, Tailwind configs, and Figma libraries.

04.03 / Best Practices

Best practices

Guidelines we follow on every project. Adopt as much or as little as fits your workflow.

Performance

  • Code-split aggressively in app builds
  • Serve modern image formats and lazy-load below the fold
  • Keep Webflow custom code under the 50KB embed limit
  • Monitor Core Web Vitals as a CI check, not an afterthought

Accessibility

  • Semantic HTML before any ARIA
  • Full keyboard navigation, including modal traps and skip links
  • Real alt text — describe the image, not the file name
  • Test with VoiceOver and a keyboard before shipping

Security

  • Validate all user input server-side, every time
  • Secrets in environment variables, never in client code
  • Row-level security on Postgres tables, not just app-layer checks
  • Audit dependencies monthly, patch critical CVEs immediately
05.01 / Contact

Contact

The fastest way to reach us is the support page. Email works too.

Email
hello@stacklumen.com for new projects, support@stacklumen.com for active engagements
Form
The support page creates a tracked ticket and routes to the right person automatically
Slack
Direct channel for retainer and partnership clients
Legal
legal@stacklumen.com for matters relating to terms, privacy, or IP
05.02 / Response Times

Response times

We respond to every inbound within 24 hours on business days — usually faster. Active engagements get same-day response on Slack. Response times are targets, not guarantees, and may vary based on volume and capacity.

  • New project inquiries — within 24 hours
  • Active client tickets — same business day
  • Retainer and partnership clients — within 4 business hours
  • Production incidents on supported sites — within 1 hour
[ Ready to start? ]

Tell us about your project.

The fastest way in is a short note. We'll respond within 24 hours, usually faster.