Question: Is there a solution that provides a full-featured SaaS boilerplate with integrations for popular tools like Stripe and Postmark?

If you want a full-featured SaaS boilerplate that's got you covered when it comes to popular tools, Bullet Launch is a great option. It's a Bubble.io-based boilerplate that includes a lot of the things you'll need for a SaaS product, like user authentication, multi-tenancy, subscription billing and more. Bullet Launch supports Stripe and Postmark, among other services, and includes documentation and video tutorials. It's geared for solo founders, developers and entrepreneurs who want to get their SaaS projects off the ground without having to know how to code.

Another powerful option is SaaSBold, a full-stack boilerplate that's based on Next.js, React and Node.js. It includes common integrations for payment processing with Stripe and LemonSqueezy, transactional email, and an admin interface. The boilerplate also supports multidimensional authentication, database operations with Prisma ORM, and internationalization. SaaSBold is optimized for SEO and performance, and comes with premium features like editable Figma design source files and lifetime free updates.

If you're looking for a Next.js-based option, Staarter is a full-featured SaaS boilerplate that's designed to get you up and running fast. It's got strong authentication and authorization, subscription management with Stripe, Paddle or LemonSqueezy, and full localization support. The boilerplate uses a modern stack with type-safe APIs, core features like payment management and analytics tracking, and strong security. With a single lifetime access payment, Staarter can save developers more than 50 hours of development time.

Finally, Kobble is an all-in-one platform that makes SaaS app development easier. It handles authentication, payments and emailing, and integrates with modern frameworks like Next.js. Kobble has a no-code authentication portal and payment integration with Stripe, so developers can monetize their apps more easily. The platform also includes user management, webhooks for automation, and a built-in frontend, so developers can focus on their business, not the technical details.