writeShellApplication: use shellcheck only where supported

      '';

      checkPhase =

        # GHC (=> shellcheck) isn't supported on some platforms (such as risc-v)

        # but we still want to use writeShellApplication on those platforms

        let

          shellcheckSupported = lib.meta.availableOn stdenv.buildPlatform shellcheck.compiler;

          shellcheckCommand = lib.optionalString shellcheckSupported ''

            # use shellcheck which does not include docs

            # pandoc takes long to build and documentation isn't needed for just running the cli

            ${lib.getExe (haskell.lib.compose.justStaticExecutables shellcheck.unwrapped)} "$target"

          '';

        in

        if checkPhase == null then ''

          runHook preCheck

          ${stdenv.shellDryRun} "$target"

          # use shellcheck which does not include docs

          # pandoc takes long to build and documentation isn't needed for in nixpkgs usage

          ${lib.getExe (haskell.lib.compose.justStaticExecutables shellcheck.unwrapped)} "$target"

          ${shellcheckCommand}

          runHook postCheck

        ''

        else checkPhase;