Drupal Invoice

Let's build a system in Drupal for managing invoices for freelancers and agencies.

Inspiration:

• https://www.waveapps.com/
• https://fossbilling.org/

Features:

• Create invoice templates
• Generate invoice PDFs
• Automatic invoice sending
• Invoice notifications, reminders
• Payment system
• Income/tax reports

The goal is to build the system and document how it's composed so others can implement and customize it themselves.

Let's also release it as a recipe to make it available for people to use.