The vast majority of these have been ARM powered using something like the Raspberry Pi 4 ... But this handheld x86 Hackintosh running the latest Mac OS on the LattePanda Alpha is truly something ...
The new version of RISC OS, the original native Arm OS, runs on eight or nine Arm-based platforms, including the Raspberry Pi ...
Sure you can compile on the Raspberry Pi itself ... Docker is available for Linux, Windows, and Mac OS. It allows developers to build images that are essentially preconfigured Linux environments ...