Most user-space code is not difficult to port. An operating system is much more work. Take a look at https://github.com/torvalds/linux/tree/master/arch/arm64 h

Most user-space code is not difficult to port. An operating system is much more work. Take a look at https://github.com/torvalds/linux/tree/master/arch/arm64 https://github.com/torvalds/linux/tree/master/arch/arm64