Should be 32b, though we can't really test it on our own :-/
Viewing post in Emily Morrison's Garden comments
Am happy to test but I should note that I don't remember the last time I used a 32-bit (desktop) Linux system... it's to the point that 32-bit libraries are optional installs now and some haven't been updated in so long they aren't compatible with current systems anyway so even installing them doesn't help :( - 64-bit only for Linux if I were you (though feel free to do both if you'd like too...