AstroKit

Astro 5 micro-SaaS boilerplate with Supabase auth and Lemon Squeezy payments

Best for: Solo developers who want to launch a small SaaS on Astro with Supabase auth and Lemon Squeezy billing already wired up.
Skip if: You need a Next.js/React SPA rather than Astro's content-first architecture, or want a free/open-source starter to inspect before buying.

AstroKit is a paid micro-SaaS starter built on Astro 5, React 19 and Tailwind CSS v4, aimed at developers who want to launch a small SaaS product quickly. It comes with Supabase authentication using Row-Level Security, Lemon Squeezy payment integration, and a pre-built admin dashboard with dark mode, all written in TypeScript with production-ready code and documentation.

Pros

Modern stack - Astro 5, React 19, Tailwind v4, TypeScript throughout
Auth and payments both pre-integrated (Supabase RLS auth + Lemon Squeezy)
Includes a working demo and documentation

Cons

No public GitHub repo to review the code before purchasing
Exact price wasn't listed on the marketplace page - buyers need to check the maker's site
Astro's island architecture is a less common choice for full SaaS apps than Next.js or Remix