Install this version:
emerge -a =dev-haskell/microaeson-0.1.0.3
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-haskell/microaeson-0.1.0.3
Or alternatively:
emerge --autounmask-write -a =dev-haskell/microaeson-0.1.0.3
# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
# ebuild generated by hackport 0.9.1.0
CABAL_HACKAGE_REVISION=1
CABAL_FEATURES="lib profile haddock hoogle hscolour test-suite"
inherit haskell-cabal
DESCRIPTION="A tiny JSON library with light dependency footprint"
HOMEPAGE="https://hackage.haskell.org/package/microaeson"
LICENSE="GPL-3"
SLOT="0/${PV}"
KEYWORDS="~amd64 ~arm64 ~ppc64 ~riscv ~x86"
RDEPEND=">=dev-lang/ghc-9.0.2:=
>=dev-haskell/text-1.2.2.2:=[profile?] <dev-haskell/text-3:=[profile?]
"
DEPEND="${RDEPEND}
>=dev-haskell/alex-3.2.0
>=dev-haskell/cabal-3.4.1.0
test? ( >=dev-haskell/aeson-2.0.3.0 <dev-haskell/aeson-2.3
>=dev-haskell/tasty-1.0.1.1 <dev-haskell/tasty-1.6
>=dev-haskell/tasty-quickcheck-0.10 <dev-haskell/tasty-quickcheck-1
>=dev-haskell/quickcheck-instances-0.3.16 <dev-haskell/quickcheck-instances-0.5
>=dev-haskell/vector-0.12.0.1 <dev-haskell/vector-0.14 )
"
>=dev-lang/ghc-9.0.2:= >=dev-haskell/text-1.2.2.2:=[profile?] <dev-haskell/text-3:=[profile?] >=dev-haskell/alex-3.2.0 >=dev-haskell/cabal-3.4.1.0 test? ( >=dev-haskell/aeson-2.0.3.0 <dev-haskell/aeson-2.3 >=dev-haskell/tasty-1.0.1.1 <dev-haskell/tasty-1.6 >=dev-haskell/tasty-quickcheck-0.10 <dev-haskell/tasty-quickcheck-1 >=dev-haskell/quickcheck-instances-0.3.16 <dev-haskell/quickcheck-instances-0.5 >=dev-haskell/vector-0.12.0.1 <dev-haskell/vector-0.14 )
>=dev-lang/ghc-9.0.2:= >=dev-haskell/text-1.2.2.2:=[profile?] <dev-haskell/text-3:=[profile?]