Compatibility layer for Data.Array.Byte, providing boxed wrappers for
ByteArray# and MutableByteArray# and relevant instances for GHC <
9.4. Include it into your Cabal file:

build-depends: base
if impl(ghc < 9.4)
  build-depends: data-array-byte

and then import Data.Array.Byte unconditionally.

Homepage:
http://hackage.haskell.org/package/data-array-byte
