Not OP and haven’t ported linux in a while but: Obviously some details are going to depend on the device, but it’s essentially: - set up a (cross) compiler -

Not OP and haven’t ported linux in a while but: Obviously some details are going to depend on the device, but it’s essentially: - set up a (cross) compiler - configure&compile the kernel - write the device tree (so the kernel knows what/where everything is) - compile the boot loader (with the device tree) - cross compile the minimum userspace for the system to function - bundle everything so you can install/flash it. Yocto [0] is what most people use to manage all those steps atm. > And I guess it's mostly about the kernel? Afaik it’s mostly writing the device tree (though it’s often provided in a board support package) and setting up the toolchain. [0]: https://www.yoctoproject.org/ https://www.yoctoproject.org/