Install this version:
emerge -a =app-emacs/lab-3.7.0
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =app-emacs/lab-3.7.0
Or alternatively:
emerge --autounmask-write -a =app-emacs/lab-3.7.0
# automatically generated by g-sorcery
# please do not edit this file
EAPI=8
REPO_URI="https://stable.melpa.org/packages/"
SOURCE_TYPE="tar"
REALNAME="lab"
DIGEST_SOURCES="yes"
inherit g-sorcery gs-elpa
DESCRIPTION="An interface for GitLab"
HOMEPAGE="https://github.com/isamert/lab.el"
SRC_URI="${REPO_URI}${REALNAME}-${PV}.${SUFFIX}"
SLOT="0"
KEYWORDS="~amd64 ~x86"
DEPEND="app-emacs/request
app-emacs/s
app-emacs/f
app-emacs/compat
app-emacs/promise
app-emacs/async-await"
RDEPEND="app-emacs/request
app-emacs/s
app-emacs/f
app-emacs/compat
app-emacs/promise
app-emacs/async-await"
app-emacs/request app-emacs/s app-emacs/f app-emacs/compat app-emacs/promise app-emacs/async-await
app-emacs/request app-emacs/s app-emacs/f app-emacs/compat app-emacs/promise app-emacs/async-await