GTuxNES is a graphical launcher built for use with the NES emulator TuxNES. TuxNES itself is a command-line only interface. GTuxNES is a graphical interface to the command-line utility. It is completely separate from the TuxNES codebase and so is extremely small and fast.
Author's website: http://www.scottweber.com/projects/gtuxnes/
Operating System: Linux