TrueNAS CORE is enterprise-quality software-defined storage that can be used without restrictions or cost. It is also the core of the full-fledged enterprise edition, TrueNAS Enterprise, which provides the additional fault-tolerance, performance, and support that businesses and critical applications require.

OPNsense is open source, FreeBSD-based firewall and routing software developed by Deciso. It is a fork of pfSense, which in turn was forked from m0n0wall.

Syncthing is a free, open-source peer-to-peer file synchronization application. It can sync files between devices on a local network, or between remote devices over the Internet.

UrBackup is an easy to setup Open Source client/server backup system, that through a combination of image and file backups accomplishes both data safety and a fast restoration time. File and image backups are made while the system is running without interrupting current processes. UrBackup also continuously watches folders you want backed up in order to quickly find differences to previous backups. Because of that, incremental file backups are really fast. Your files can be restored through the web interface, via the client or the Windows Explorer while the backups of drive volumes can be restored with a bootable CD or USB-Stick (bare metal restore).