NextDevTpl: A Next.js Full-Stack SaaS Template for Indie Developers

Happy New Year! I recently turned a template I kept refining across multiple projects into an open-source project: NextDevTpl. The goal is simple: don’t waste time on non-core business work.

Why build this template?#

If you have built products from 0 to 1 before, you probably know this already: the most time-consuming part is often not the business logic itself, but repeatedly rebuilding infrastructure.

Login, registration, permissions, and session management
Subscription payments, webhooks, and billing status sync
Credits deduction/issuance, expiration, and transaction records
Email notifications, file uploads, and support tickets
Admin dashboard, logging/monitoring, and error alerts

You rebuild these every time. It’s not just time-consuming — it also increases the chance of hidden issues surfacing after launch.

So I extracted these high-frequency modules into a reusable template, aiming for out-of-the-box usability with long-term extensibility.

Tech stack (current version)#

Next.js 16 + React 19 + TypeScript
Tailwind CSS 4 + Shadcn/UI
Drizzle ORM + PostgreSQL
Better Auth (account system)
next-intl (i18n)
S3/R2-compatible object storage
Vitest + Biome engineering support

Built-in capabilities (not just a shell)#

1) Users and permissions#

Email sign-up/sign-in and OAuth
Session management and role isolation (user / admin)

2) Monetization capabilities#

Subscription payment flow
Webhook processing
Credits ledger and charging logic

3) Operations support#

Email templates and delivery
File upload and management
Ticket system (user side + admin side)
Admin console (user management + data dashboard)

4) Engineering safeguards#

API rate limiting (optional)
Structured logging (optional)
Error monitoring (optional)
Automatic graceful degradation when external services are not configured (great for local development and debugging)

Who is this for?#

Indie developers who want to launch an MVP quickly
Small teams that want a unified technical foundation
Developers who are tired of rebuilding auth, payment, and admin panels for every new project

Quick start#

1
git clone git@github.com:evepupil/NextDevTpl.git
2
cd NextDevTpl
3
pnpm install
4
cp .env.example .env.local
5
pnpm db:push
6
pnpm dev

What problem am I trying to solve?#

The core goal of this project is not to “stack buzzwords,” but to help you spend your time on what truly matters:

Business loop and core value
User feedback and iteration speed
Monetization validation and growth

Feedback and collaboration welcome#

If you’d like to try it, I’d love real feedback:

Which modules matter most to you?
What still isn’t production-ready enough?
What capabilities should be prioritized next?

Issues and PRs are welcome — let’s polish this into a truly production-grade, practical template. Feel free to discuss ideas on linux.do as well; I’ll keep iterating.

Project repo: evepupil/NextDevTpl: A modern full-stack SaaS development template built with Next.js 15, including authentication, payments, credits, email, storage, ticketing, API rate limiting, logging, and error monitoring.

Live demo: NextDevTpl - Production-Ready Next.js SaaS Template | NextDevTpl

Preview:

Haha, I’ve also used this template in the past two weeks to launch two overseas projects quickly. If you’re into indie hacking, feel free to connect.