With code

0:00. Create the Startup from a Startup Template:

$ npm create startups leaseline.app -- --template solo-saas --yes

1:00. Open startup.ts. It holds the name, the Domain and the Template it extends; everything else is inherited:

import { Startup } from 'startup-builder'

export default Startup({
  name: 'Leaseline',
  domain: 'leaseline.app',
  extends: 'solo-saas',
})

2:00. Open the folder in your coding agent. AGENTS.md teaches it the conventions, and .mcp.json connects it to the MCP server.

3:00. Start the dev server. It watches the project and previews each edit as a Change:

$ npx startup-builder dev

4:00. Change the price in offers/pro.mdx from 29 to 39. The checkout, the pricing page and the types of $ recompile.

6:00. Rehearse publishing the Offer. --try checks it and stores nothing:

$ npx startup-builder do Offer.publish --json '{"offer":"offer_1"}' --try

7:00. Stream the subscription Events to a local URL, then fire one in test:

$ npx startup-builder listen Offer.subscribed --forward-to http://localhost:3000/hooks$ npx startup-builder trigger Offer.subscribed

9:00. Print what you have: the Site, Offers, Roles and Processes, own and inherited:

$ npx startup-builder show /