PumpkinOS is a unique re-implementation of PalmOS that runs on modern architectures like x86 and ARM without requiring a PalmOS ROM. It can run m68K PalmOS applications like AddressBook, MemoPad, ToDoList, and DateBook with some compatibility issues. This project is still experimental, with the goal of providing a glimpse into the future of PumpkinOS. The software is licensed under GPL v3 and must be built from source using specific steps for Windows, Linux, and WSL. The Windows version supports Drag & Drop functionality while the Linux version requires manual copy of files. Debugging is possible with gdb on all platforms.
https://github.com/migueletto/PumpkinOS