Install this version:
emerge -a =dev-perl/maybe-0.20.200-r2
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-perl/maybe-0.20.200-r2
Or alternatively:
emerge --autounmask-write -a =dev-perl/maybe-0.20.200-r2
# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
DIST_AUTHOR=DEXTER
DIST_VERSION=0.0202
inherit perl-module
DESCRIPTION="Use a Perl module and ignore error if can't be loaded"
SLOT="0"
KEYWORDS="~amd64 ~x86"
RDEPEND=""
BDEPEND="${RDEPEND}
dev-perl/Module-Build"
dev-perl/Module-Build