Kiosk System on RPi 0

[MAkcanca]

I'm aware it would be much slower but how can we achieve this? When I manually add webengine_kiosk to deps and use nerves_system_rpi0, it builds for x86_64 not ARM. Possibly related to this nerves-web-kiosk/webengine_kiosk#29 although they don't exactly explain how did they solve it.
How can I port this into RPi0? I know it's possible to do it since there are tutorials explaining how to achieve this on Raspbian.

Any help is appreciated.
Thanks!