archiso # the official package does not build an iso on i686
cuda # cuda 9.0 is 64-bit only
dmd # fails to build, upstream is unresponsive, see forum
# gitlab
linux-hardened # not really useful on i686 + hard to maintain
luxrays # does not compile on i686 - see FS#54960
python-pytorch # Gloo can only be built on 64-bit systems
# python-sympy
# rkt
rubinius # Support for non-64bit platforms was deprecated 1 Jun 2016 and has now been removed. If non-64bit support is a critical feature for your application, please email contact@rubinius.com
wiredtiger # WiredTiger requires a 64-bit build
zcash # We don't yet support 32bit systems (and we won't by launch) but we can look into this after launch.