The fast, stable, and always free Linux SPICE client

One of Remmina’s many features is a SPICE client in the connection manager with many tunable options to get you connected just how you want

Simple Protocol for Independent Computing Environments - Wikipedia

SPICE (the Simple Protocol for Independent Computing Environments) is a remote-display system built for virtual environments which allows users to view a computing “desktop” environment – not only on its computer-server machine, but also from anywhere on the Internet – using a wide variety of machine architectures.

Qumranet originally developed SPICE using a closed-source codebase in 2007. Red Hat, Inc acquired Qumranet in 2008, and in December 2009 released the code under an open-source license and made the protocol an open standard.