How to Install BoxBilling on Debian 11
BoxBilling is a community-driven billing software written in PHP. It is free and open-source billing designed to be easy to use for both clients and sellers. In this tutorial, we will show you how to install BoxBilling with Nginx, PHP-FPM, and MariaDB on Debian 11 Bullseye.
Source: Howtoforge Linux Howtos und Tutorials