grumpycoders/pcsx-redux
The PCSX-Redux project is a collection of tools, research, hardware design, and libraries aiming at development and reverse engineering on the PlayStation 1. The core product itself, PCSX-Redux, is yet another fork of the Playstation emulator, PCSX.
License & maintenance
GPL-2.0 is a copyleft license: products that include or modify it may have to publish their code.
Last code push today.