My overlay for custom packages
sudo pkgdev manifest
pkgcheck scan
cat <<EOF > /etc/portage/repos.conf/iomonad.conf
[iomonad-overlay]
auto-sync = yes
location = /usr/local/portage/overlays/iomonad
sync-type = git
sync-uri = https://github.com/iomonad/iomonad-overlay.git
EOF