Solo Founder SaaS

The recipe

1. Build in Cursor. One editor for the whole repo: agent mode for scaffolding, inline edits for iteration. Keep the agent on a Sonnet-class model for cost control.
2. Deploy statically where possible. Astro/static output to an edge host; server endpoints only where a form or webhook truly needs one.
3. Billing last. Add payments only after the first manual sales — a payment form is not validation.
4. Support yourself. A public changelog and a fast personal inbox beat a helpdesk at this scale.

When this breaks down

Past ~2 products or a team of 2+, the single-editor single-brain setup becomes the bottleneck. Re-evaluate then, not before.