Introducing Mantlekit: The Next.js Boilerplate That Ships With Everything

Building a modern web product means stitching together dozens of moving parts before you ever ship a single feature. Authentication, billing, role-based permissions, a content dashboard, a kanban board for your team, a calendar, a cookie banner, a coming soon page, support tickets, an e-commerce flow — the list never ends. By the time you have a working foundation, weeks have already vanished and you still have not started on the thing you actually wanted to build.

Mantlekit was built to end that cycle. It is a Next.js boilerplate that ships with everything you need to launch a serious product on day one. Instead of giving you a blank starter and a TODO list, Mantlekit hands you a fully wired application with the heavy lifting already done.

What Mantlekit Gives You Out of the Box

Mantlekit is more than a starter kit. It is a complete product foundation built on top of Next.js, designed for indie hackers, agencies, and teams who want to move fast without cutting corners. Here is a tour of what is included the moment you clone the repository.

A Full Content Dashboard

Every serious app needs an admin surface, and Mantlekit ships with a polished content dashboard that already covers the common use cases. You can manage users, content, products, orders, tickets, and settings from one cohesive interface. The dashboard is built with reusable layouts, sidebars, and data tables, so adding a new resource is a matter of dropping in a component rather than rebuilding the whole shell.

Teams and Role-Based Access

Multi-tenant apps are notoriously tricky to bolt on after the fact. Mantlekit gets it right from the start with first-class support for teams, invitations, and role-based access control. You can define roles, scope permissions to specific actions, and let users belong to multiple teams. Whether you are building a SaaS for solo users or for collaborative organizations, the data model and UI are ready to go.

Calendar and Kanban Built In

Project management features are some of the most requested additions in modern SaaS products, and they are also some of the most painful to build. Mantlekit comes with a fully functional calendar view and a drag-and-drop kanban board out of the box. Use them as-is for your roadmap, repurpose them for content scheduling, or wire them up to your own domain models. Either way, you save weeks of frontend work.

Launch Mode and Coming Soon Page

Launching a product is a moment, not just a deployment. Mantlekit includes a built-in launch mode that lets you toggle between a polished coming soon page and the full application with a single configuration flag. Collect emails, tease features, and build anticipation before you go live, then flip the switch on launch day without touching your code.

Cookie Banner and Compliance Basics

Privacy regulations are not optional anymore. Mantlekit ships with a configurable cookie banner, consent management, and the hooks you need to respect user choices across analytics and marketing scripts. It is the kind of unglamorous work that nobody enjoys building from scratch, and it is already done.

Support Tickets

Once real users show up, support requests follow. Mantlekit includes a ticketing system so your customers can open issues, attach context, and track responses without leaving your product. For you, it means fewer disconnected inboxes and a clear view of what your users actually need.

E-commerce Ready

If you want to sell physical products, digital downloads, or one-time offers alongside your subscriptions, Mantlekit has you covered. The e-commerce module includes product management, cart flows, checkout, and order tracking, all integrated with the same dashboard and team model as the rest of the app.

Why a Boilerplate That Ships With Everything Matters

There is a school of thought that says boilerplates should be minimal and that every team should assemble their own stack. In practice, that philosophy costs founders months of runway and energy. The features Mantlekit includes are not exotic. They are the same features almost every product ends up needing, just earlier or later in its life. By including them from day one, Mantlekit lets you spend your focus on the parts of your product that are actually differentiated.

It is also worth noting how these pieces fit together. A standalone kanban library is useful, but a kanban that already understands your teams, roles, and permissions is dramatically more powerful. The value of Mantlekit is not just the individual features, it is the way they are integrated into one coherent application.

Who Mantlekit Is For

Mantlekit is a strong fit for indie hackers who want to launch a product this month instead of next quarter, for agencies who build similar SaaS products for multiple clients and want a reliable base to start from, and for small teams who need a dashboard, billing, teams, and support without burning a sprint on scaffolding. If you have ever started a side project and stalled out before reaching the interesting part, this is the kind of toolkit that gets you past that wall.

Getting Started

Getting up and running with Mantlekit is straightforward. You clone the repository, configure your environment variables, run the database migrations, and you have a working application with authentication, a dashboard, teams, a calendar, a kanban board, tickets, an e-commerce flow, a cookie banner, and a launch mode. From there, you can start customizing the brand, the data models, and the features that make your product yours.

You can see the full feature list, the live demo, and the documentation at mantlekit.dev. Whether you are launching your first SaaS or your fifth, Mantlekit is designed to remove the friction between your idea and your launch day.

Final Thoughts

The best time to ship is always sooner than you think, and the biggest blocker for most founders is not the idea, it is the weeks of plumbing between the idea and a working product. Mantlekit collapses that gap. By bundling a content dashboard, teams, roles, calendar, kanban, cookies banner, launch mode, coming soon page, tickets, e-commerce, and more into a single Next.js boilerplate, it gives you a serious head start without locking you into anyone else's vision of your product.

If you have been waiting for the right moment to build that SaaS, that marketplace, or that internal tool you keep sketching on napkins, Mantlekit is the kind of foundation that turns waiting into shipping.