The rationale was the same a few years ago when distributions like Arch Linux decided to drop support for 32-bit hardware entirely. Maintainers had noticed the drop-off in downloads for the 32-bit ...

We list the best Linux ... is available for 64-bit computers only, but can also boot on older machines with the Legacy BIOS in addition to the newer EFI machines. Ubuntu Linux derives its name ...

Linux requires a 32-bit CPU and a memory management unit, something the puny microcontroller doesn’t have. For [Dmitry], the best course of action was emulating an ARM processor on an AVR.