firewalld is a dynamically managed firewall daemon with support for network/firewall zones to define the trust level of network connections or interfaces. It has support for IPv4, IPv6 firewall settings and for ethernet bridges and has a separation of runtime and persistent configuration options. It also provides a D-Bus interface for services or applications to add and apply firewall rules on-the-fly.

Wireshark is a network "sniffer" - a tool that captures and analyzes packets off the wire. Wireshark can decode too many protocols to list here.

Jajuk is software that organizes and plays music. Jajuk is designed to be intuitive, fast and provide multiple ways to perform the same operation. It is a fully-featured application geared towards advanced users with very large or scattered music collections.

The Open Virtual Machine Tools (open-vm-tools) project is an open source implementation of VMware Tools. It is a suite of virtualization utilities and drivers to improve the functionality, user experience and administration of VMware virtual machines.

Anbox is a container-based approach to boot a full Android system on a regular GNU/Linux system.

Wine is a free MS-Windows API implementation.