
Already
Production-ready Next.js 15 SaaS starter kit with auth and billing

About Already
Already is a Next.js 15 starter kit for founders and developers who want to skip the weeks spent wiring up authentication, billing and multi-tenant user management before building their product. It ships sixteen pre-wired modules, including Supabase Auth with optional MFA mandates, Stripe subscriptions with idempotent webhooks, row-level security, background jobs and an AI integration with per-organization rate limits.
The kit can be configured for B2B apps with org switching and invitations, or for B2C apps with a single personal workspace per user, using one config flag. It also includes a CLAUDE.md file and scoped Cursor rules so AI coding assistants understand the codebase from the start, plus a migration guide and CLI for moving apps from Lovable, Base44, Bolt or v0.
Already is a one-time purchase rather than a subscription, with a Solo and a Team license and an optional Enterprise add-on for SCIM provisioning. Its main trade-off is that it is built around Supabase Auth, so teams using a different auth provider will find it a poor fit.