Case Study

Waitly

Synchronizing a Tri-App Headless Ecosystem for B2B & B2C Scaling

Housing Market

OVERVIEW

Modernizing Waitly’s Multi App Ecosystem

Waitly is a sophisticated multi-platform ecosystem comprising three distinct applications: a public Marketing Website, a B2C Customer Portal and a B2B Owner Dashboard. Dev Mechanix was tasked with managing the interplay between these applications, optimizing the headless architecture and executing a critical UI migration to ensure the platform remained at the cutting edge of the Vue.js ecosystem.

PLATFORM TYPE

Headless Multi-app Marketplace

INDUSTRY

Accommodation Marketplace

LOCATION

Germany

SCALE

Mid to Large Scale

The Challenge

Critical Problems to Solve

Dual Data Source Integration

The Marketing Website had to consume data from two different sources simultaneously: DatoCMS (via GraphQL) for content and the B2B Backend (via REST) for listings. Managing these seamlessly in a single app without performance lag was a significant hurdle.

Major UI Framework Migration

Transitioning the B2C portal from NuxtUI V2 to V4 represented a major version jump, requiring extensive refactoring of components and styling logic without breaking the user experience.

Backend API Reliability & Security

Ensuring that the B2B backend could reliably serve as the API provider for both the public website and the private B2C app while maintaining strict data security.

Core Web Vitals Optimization

Improving Core Web Vitals for a content heavy headless site to ensure maximum search engine visibility and user retention.

The Solution

How We Engineered It

Dual Data Source Integration

Engineered a robust frontend in Vue.js that gracefully handles the “Double-Data” provider challenge. By optimizing the data-fetching layer, we ensured that CMS content and real-time listing data load in perfect synchronization.

NuxtUI V4 Migration

Successfully executed the high-stakes migration of the B2C UI to NuxtUI V4. This involved updating the entire component library and leveraging TypeScript to ensure type-safety across the new interface.

Backend Communication Optimization

Streamlined the communication between the Vue.js frontend and the Laravel/AWS backend, reducing API overhead and improving response times for both B2B and B2C users.

Performance Optimization

Performed a deep audit of the headless rendering process, implementing advanced caching and Tailwind CSS purging to push the website’s Core Web Vitals scores above 90.

Results

Delivered Results That Matter

100%
Successful V4 Migration

Completed a major UI overhaul that future-proofed the B2C application and improved the overall developer experience.

90+
Core Web Vitals

Transformed the public website into a high-performance asset, consistently hitting elite speed and stability marks.

10,000+
Concurrent Users

Delivered a clean, optimized codebase that reduced technical debt by 40% and allows Waitly to scale their B2B and B2C user bases to 10,000+ concurrent users without architectural bottlenecks.

100%
Seamless Data Orchestration

Successfully bridged the gap between DatoCMS and the B2B API, providing a fluid experience for users browsing listings.

The Team & Process

A Cross-Functional Powerhouse

Product Owner

Acted as the strategic bridge between the client’s vision and the technical roadmap, ensuring the inter-app dependencies were managed to deliver maximum business value.

Project Management (PM)

Orchestrated the development lifecycle using Agile methodologies, maintaining strict timelines for the migration while coordinating updates across all three apps.

UI/UX Design Team

Focused on the visual consistency between the three applications, ensuring that the transition from the Marketing Website to the B2C portal felt like a single, unified brand experience.

Full-Stack Development Team

A dedicated team of experts who managed the end-to-end execution, from the massive NuxtUI migration to the complex GraphQL/REST integration.

Quality Assurance (QA)

Performed rigorous regression testing during the UI migration to ensure every button, form, and listing functioned perfectly in the new V4 environment.

The Solution

How We Engineered It

Vue.js/Typescript

Frontend Framework

Tailwind CSS & NuxtUI

Styling

PHP / Laravel

Backend API

DatoCMS & GraphQL

Content Management

AWS & Netlify

Hosting & Infrastructure

Why This Matters

What This Project Proves

This project highlights Dev Mechanix’s ability to manage high-complexity environments where multiple apps must work as one.

Mastering the Migration

Major version jumps (V2 to V4) are risky. We proved we can navigate these transitions safely, ensuring your app stays modern without losing stability.

Handling Hybrid Data

Most agencies struggle with multiple data providers. We thrive in these environments, building unified frontends that make complex backends feel simple to the user.

Performance in Headless Environments

We proved that a headless approach doesn’t have to be slow; with the right optimization, you can have CMS flexibility and 90+ performance scores simultaneously.

Dev Mechanix

Ready to Build Something Exceptional?

From high-concurrency SaaS platforms to complex UI engines — we engineer software that performs when it matters most.

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