A small, simple app for tracking your small business' jobs.
This program uses therecipe/qt.
Follow the instructions for installation found here.
Then clone this project, cd into its directory and run qtdeploy test desktop
You will need a database server to store jobs and a CardDAV server to store customers.
This app should support Postgres, MySql, MSSQL, and Sqlite, though I have only tested Postgres.
This app is not for editing and creating customers. There are plenty of contacts apps that can do that.
Pro tip: Use DAVDroid to sync your contacts to your android phone, then use the built-in Contacts app.
Warning: Do not attempt to use Google's contacts sync service. At best, you will lose data.