There's definitely still new Linux systems that are 32 bit (Raspberry Pi, etc) though probably not many as a developer computer. Maybe Crouton on a Chromebook?

There's definitely still new Linux systems that are 32 bit (Raspberry Pi, etc) though probably not many as a developer computer. Maybe Crouton on a Chromebook? Anyways you have a point about the simplicity of mmap. Reading up on the suckless philosophy, it does seem to fit.