Bookyt is a bookkeeping/ERP application designed for small-to-medium-sized companies. It can handle debit invoices, credit invoices, projects with timelogs, swiss salary management, and much more.
CyDoc is a Web-based doctor's office application. It allows you to track your patients' medical history and handles all your billing needs.
A program to generate and solve "travelling salesman problem" tasks.
A self-hosted read-it-later Web app.