add to '/etc/pacman.conf' and hope no one came up with a better name

[archpkgs]
SigLevel = Optional TrustedOnly
Server = https://janmarvin.github.io/archpkgs/$arch

Note to self:

cd x86_64
cp what/ever/pkg .
repo-add archpkgs.db.tar.xz *.pkg.tar.xz

The sources for the packages are

• rstudio-desktop-git
• soci
• pandoc-deb
• v8-r