For developers
ReRAC lives in two repositories. Their READMEs explain how to build, run and test everything, including how to run a local build of the game in the launcher.
The gameThe game and its extractor.
The launcherThe ReRAC Launcher.
Both are open source under the ISC licence.
ReRAC is an unofficial fan project, not affiliated with or endorsed by Sony Interactive Entertainment or Insomniac Games. Ratchet & Clank and related names are trademarks of their respective owners. ReRAC doesn’t include the game; you need your own copy.