[R-sig-Debian] Enabling arm64 in launchpad PPA's

[Jeroen Ooms]

I was wondering if it would be possible to enable arm64 in some of the
PPA's, such as rrutter4.0. As far as I can tell, currently only i686
and amd64 are provided. It would be great to have arm64 builds for the
ubuntu-lts backports of r-base.

You can enable other platforms in the PPA settings. Go to "Change
details" on your PPA and look under "Processors".