Next-Level
Web Development

Innovative, high-performing websites and apps tailored to your needs.

Barkley Mulch

Barkley Mulch

Berserkergang Bones

Berserkergang Bones

sendoff.ai

sendoff.ai

contentpress.ai

contentpress.ai

Christopher Royce Hair Studios

Christopher Royce Hair Studios

Cardile Law

Cardile Law

Hudson Heights

Hudson Heights

NJ Property Brothers (njpb)

NJ Property Brothers (njpb)

Bobs Express

Bobs Express

Cocoon USA

Cocoon USA

Jersey Green Giants

Jersey Green Giants

Dutch Hill

Dutch Hill

Real Renos

Real Renos

Websites • Business Applications • Integrations

Custom websites & web apps that
work beyond the browser

From high-performing websites to customer portals, e-commerce, scheduling and internal operations, we build connected Next.js applications around how your business really works.

Built to look great, perform well, and connect with the software you already depend on.

Custom Business Web Apps

Customer portals, admin dashboards, inventory, booking and internal applications built around the way your team actually works.

Audit-Ready by Default

Performance, accessibility, SEO and technical quality tested throughout development—not treated as an afterthought.

Next.js at the Core

Modern React and Next.js architecture designed for speed, maintainability and an excellent customer experience.

Modernize Without the Bloat

Replace limitations and fragile plugins where needed—or keep existing tools and integrate them with a better application.

What we build

From public websites to the systems behind them

Customer & VIP Portals

Account registration, memberships, authentication and self-service.

E-commerce Experiences

Custom storefronts, ordering, checkout and shipping integrations.

Booking & Scheduling

Live availability, appointment management and scheduling APIs.

Operations & Inventory

Admin tools, inventory management and operational workflows.

Payments & Subscriptions

Stripe, Square, membership billing and connected payment experiences.

Dashboards & Integrations

Reporting, business data, secure APIs and internal applications.

Why 4567 Labs

Senior execution, operations-first thinking

The people designing the experience also understand the code, data and business workflows behind it.

Performance with Accountability

We measure site speed, accessibility and technical quality, then address meaningful issues—not just chase a perfect score.

Modern, Maintainable Architecture

We favor clear architecture and proven technologies so your application can evolve without a complete rebuild.

We Build and Operate Software

Operating our own tools gives us firsthand experience with deployments, integrations, maintenance and real users.

Built Around Real Work

The goal is more than polished design. It is a faster, clearer experience for the people who actually use it.

Small, Senior Team

Collaborate directly with the people designing and developing your application—from discovery through launch.

Our products

Software we build and operate

We understand product development from the inside because we maintain software of our own—not just client projects.

Sendoff.ai logo

Sendoff.ai

Outreach & follow-up workflows

In production

An SMS and email outreach platform built to support marketing campaigns, prospecting and lead follow-up.

ContentPress logo

ContentPress

Content operations

In production

Our AI-assisted workspace for generating, organizing and scheduling content across multiple channels.

MyWebGuySucks.com logo

MyWebGuySucks.com

Website performance audits

In production

Website performance, accessibility and SEO audits translated into understandable, prioritized recommendations.

Stack, testing & security

Modern stack, thoughtful engineering

The tools matter, but so do maintainable code, careful access controls, and testing the workflows behind every release.

Technologies

  • Next.js & React — App Router, server-rendered experiences and modern React patterns tailored to each project.
  • TypeScript — Strong typing helps make application logic, integrations and future changes easier to maintain.
  • Modern Databases & Auth — Postgres, Supabase, access controls and data models designed around application requirements.
  • Performance Tooling — Lighthouse, Core Web Vitals and real-device testing to identify performance bottlenecks.

Security

  • Encryption — Encrypted connections and appropriate handling for application secrets and sensitive data.
  • Authentication & Authorization — Established authentication patterns and server-side authorization for protected actions.
  • Security Reviews — Review application dependencies and security-sensitive flows throughout implementation.
Integrations

Real integrations, not isolated features

Scheduling, payments, customer accounts and operations should work together. We build the application layer that connects them.

Payments & POS

Stripe and Square integrations for subscriptions, checkout, deposits and operational payment workflows.

CRMs & Marketing

Connect lead capture, messaging and customer workflows to existing marketing systems and CRMs.

Scheduling & Operations

Acuity Scheduling, booking, membership and custom APIs connected to real business workflows.

Technologies & Platforms

Modern development draws on a wide range of tools and platforms. We select technology based on the needs of each project.

vercel logo
google logo
open ai logo
supabase logo
x ai logo
next js logo
microsoft logo
github logo
adobe logo
facebook logo
linkedin logo
wordpress logo
instagram logo
elevenlabs logo
vercel logo
google logo
open ai logo
supabase logo
x ai logo
next js logo
microsoft logo
github logo
adobe logo
facebook logo
linkedin logo
wordpress logo
instagram logo
elevenlabs logo
Selected client work

Real projects. Working software.

See how custom applications and integrations support scheduling, customer accounts, ordering, inventory and commerce.

Christopher Royce — Accounts, VIP & AI Assistants
Membership & Scheduling

Christopher Royce — Accounts, VIP & AI Assistants

A connected customer platform with registration, VIP memberships, Stripe subscriptions and Acuity scheduling, extended with Howie and Cal's real-time AI voice and chat experiences.

Dutch Hill — Holiday Ordering Platform
Custom Ordering & Admin

Dutch Hill — Holiday Ordering Platform

Manage holiday products, order options, pickup windows and Square deposits through a purpose-built administrative platform with practical fulfillment summaries.

Dutch Hill — Scale-to-Store Automation
Inventory & Point of Sale

Dutch Hill — Scale-to-Store Automation

Custom software connecting scales, barcodes, label printing and Square inventory so in-store operations and online product availability stay aligned.

Berserkergang Bones — Custom Commerce Experience
E-commerce & Integrations

Berserkergang Bones — Custom Commerce Experience

A premium Next.js storefront connected to Square commerce and payments, with Shippo shipping workflows and an experience tailored to the brand.

The next layer of business software

Give your customers a natural way to interact with your platform.

We also build real-time AI voice and chat assistants that connect to the applications behind your website. See how Howie and Cal support live account and scheduling workflows for Christopher Royce Hair Studios.

Explore AI Assistants

Ready to build a website that does more?

Let's plan and build a Next.js experience that looks great, connects your business systems, and makes life easier for customers and staff.