Is this compatible with the ARM architecture or is it for x86 machines? There's no issue in any case but I was thinking if it was ARM compatible it would be compatible with single-board computers like the Raspberry Pi which would really open the door for Raspberry Pi games. Whether the market for that is big enough... ehh that's debatable, but it'd give itch.io a somwhat unqiue selling point.
Viewing post in ItchOS
Is 64bit only: fewer hardware compatibility, but maxium software's one (32 bit app runs on x64cpu, 64bit app ar64).
For raspberryPi, and other arm hardware, there are already lot of distro in which choice: included regular Debian/Ubuntu, gaming with emulator and, of course, android. But I assume you need also the Itch.app first