Introducing Mosaik: A Modern Headless Boilerplate for Building Scalable Next.js Applications

In today’s fast-evolving web development landscape, creating flexible, maintainable, and high-performance frontend architectures is more important than ever. If you’re exploring innovative ways to develop React and Next.js applications, you might find inspiration in Mosaik—a minimal yet powerful boilerplate designed to streamline your development process.

What is Mosaik?

Mosaik is an opinionated, modern frontend framework crafted for building highly modular, themeable, and data-driven user interfaces. It emphasizes a component architecture where the application is viewed as a dynamic “mosaic”—a collection of reusable, self-contained pieces that adapt seamlessly to user needs, branding, and data sources.

Core Principles and Features

• Component Composition via Slots
  Think of each UI element—header, sidebar, item list—as a slot. These slots can be rendered with different components based on themes or context, allowing for effortless customization and restyling.

• Dynamic Theming
  Mosaik employs structured theme mappings, making it straightforward to switch components or styles dynamically, whether at runtime or during development—ideal for supporting different brands, user preferences, or device modes.

• Actions and User Interactions
  Interactivity is handled through well-defined actions, exposed by providers, and consumed within views. This setup simplifies conditional rendering of buttons, toggles, or menus, enhancing responsiveness and user engagement.

• State Management with React Hooks
  State handling is facilitated using modern React patterns like useReducer, enabling clear separation of local and global state concerns, with considerations for server and client responsibilities.

• Flexible Data Integration
  Whether connecting to a headless CMS, REST API, or static JSON, data providers abstract fetching, transformation, and caching. This keeps your components declarative and focused on presentation rather than data logic.

Positioning in the Development Ecosystem

Mosaik is not a rendering engine on its own; instead, it serves as a layering framework on top of React and Next.js. It fully embraces React Server Components and modern rendering paradigms—supporting static generation, server-side rendering, and hydration—making it suitable for a wide range of projects, from marketing sites to complex dashboards and content management systems.

Ideal for Collaborative Teams

Mosaik’s architecture promotes collaboration across design, development, and content teams:

• Designers can define and customize slots and themes