Go live with confidence.

SaaS apps, dashboards, marketplaces, AI products, admin panels. Anything you’d build with Next.js. Internal tools and dashboards are a strong fit too: the auth system, RBAC, data tables, and form components handle data-dense interfaces well, and smaller user bases mean fewer edge cases to manage. The stack also supports marketing pages, landing pages, and docs sites alongside your app. You can ship as a web app, a PWA, or pair with Expo for mobile. Not a fit for: native iOS/Android apps, WordPress sites, or standalone Shopify storefronts.

Lifetime access to the full Sinter codebase via private GitHub repo. Auth, payments, email, security, CI/CD, a complete design system, 27 Claude Code slash commands, 14 specialized agents, 22 safety hooks, 6 MCP integrations, 385+ documented patterns, and AI-ready infrastructure with OWASP LLM Top 10 hardening. Plus all future updates for as long as Sinter is actively developed.

Free starters give you the skeleton. You still need auth edge cases, payment webhooks, testing infrastructure, CI/CD pipelines, security hardening, and a way for your AI tools to understand the codebase. That’s where your time and tokens go. Sinter includes ~40 quality gates across pre-commit, pre-push, and CI, 20+ safety hooks, and 385+ documented patterns that free starters don’t have. The gap between “it runs locally” and “it’s safe to go live” is what you’re paying for.

Yes. The infrastructure (auth, payments, testing, CI/CD, the design system, security hardening) works with any editor. The Claude Code slash commands, agents, and safety hooks are a bonus layer for Claude Code users. You’re getting a production-ready Next.js codebase either way.

Yes. One purchase, unlimited projects. Build your own SaaS, build for clients, build side projects. No per-project licensing.

The docs cover Sinter’s architecture, conventions, and what every system does. The changelog shows what’s being worked on. This FAQ was generated by Claude Code from the codebase itself, which tells you something about the documentation depth. A live demo is coming.

Run /update in Claude Code. It fetches the latest changes from Sinter, groups them by PR, flags high-risk files (env config, migrations, tokens), previews conflicts before touching your code, and walks you through resolving them with smart per-file heuristics. Then it runs the build to make sure nothing broke. It turns what would be a stressful git merge into a guided conversation. Updates are pushed regularly for as long as Sinter is actively developed.

Great for building your first version. When the codebase starts fighting you (bugs multiply, context fragments, auth breaks in edge cases), Sinter is the foundation you build on next. Think of it as a graduation path, not a replacement.

Check the changelog. Updates are pushed regularly, and the knowledge system means the codebase gets better with every pattern you document. It’s not static code you’ll outgrow.

30 GitHub Actions workflows. Type checking, linting, and tests on every PR. Security workflows include CodeQL, Gitleaks, dependency review, and axe accessibility audits. Structural checks include Knip (dead code), DPDM (circular imports), and enforced coverage thresholds. Every release includes CycloneDX + SPDX software bills of materials. Plus automated PR labeling, bundle-size monitoring, and AI-powered code review.