Python SaaS Starter Template (FastSvelte-style)

Most SaaS boilerplates use Node.js and server-side rendering, but Python developers with AI-heavy ideas need a Python backend + SPA pattern. Sell a production-ready FastAPI + SvelteKit starter kit with auth, payments, and deployment configured.

The explosion of Python-first AI apps (LangChain, FastAPI, ML inference services) has created a real gap: most boilerplate ecosystems still assume Node end-to-end, leaving Python developers stitching together auth and payments from scratch. The closest substitute is Shipfast, but it's Next.js-only, and nothing well-known occupies the FastAPI + SvelteKit niche specifically. The $500–3k/mo band is realistic for a one-time or small-subscription product given low ongoing support costs, but it also caps upside — this is side-income territory, not a fundable business. The biggest risk is that the audience skews toward developers who will just build their own rather than pay, making the addressable paying market much smaller than the total interested market.