crater-invoice-inc/crater — reverse-engineered prompt

I want a clean self hosted invoicing app for freelancers or small businesses. It should let someone create professional invoices and estimates, track expenses and payments, manage customers, and handle more than one company from the same system. Please include useful things people would expect here, like recurring invoices, a customer portal where clients can view their invoices, email sending and basic payment acceptance, plus simple branding so the invoice and portal can match a business.

Make the experience feel polished and easy to use on the web, with a proper setup flow so a non technical person can get started. If the project already has most of this, finish wiring it up, fix rough edges, and make sure it runs locally with a straightforward install, ideally with Docker as an option.

Please also make sure there is seed or demo data so I can click around right away, and leave clear setup notes. If you need details, look up the current docs online and follow the existing project direction.