PumpkinOS is a re-implementation of PalmOS that runs on modern architectures (x86, ARM, etc). It is not your average PalmOS emulator (it does NOT require a PalmOS ROM), but it can run m68K PalmOS applications. For a series of articles describing various aspects of PumpkinOS, look here: https://pmig96.wordpress.com/category/palmos/. Launcher is the first application that runs when PumpkinOS starts.