Surely the barrier to using a new architecture is being able to boot a kernel and run (say) the GNU toolchain, as demonstrated with RISC-V. Then you just compi

Surely the barrier to using a new architecture is being able to boot a kernel and run (say) the GNU toolchain, as demonstrated with RISC-V. Then you just compile your code, assuming it doesn't contain assembler, or something. Whether or not you'll have the same sort of board support issues with RISC-V as with Arm, I don't know.