Install this version:
emerge -a =app-emacs/sokoban-1.4.8# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
ELPA_CONTAINER_KIND="tar"
inherit elpa
DESCRIPTION="Implementation of Sokoban for Emacs"
SLOT="0"
KEYWORDS="amd64 x86"
ELISP_REMOVE="sokoban-pkg.el"
SITEFILE="50${PN}-gentoo.el"
DOCS="ChangeLog"
src_install() {
elisp_src_install
insinto "${SITEETC}/${PN}"
doins sokoban.levels
}