{ inputs, ... }:
{
  perSystem =
    { pkgs, ... }:
    {
      devShells =
        if pkgs.stdenv.isLinux then
          let
            hostShells = inputs.self.nixosConfigurations.emacs.config.devShells;
          in
          inputs.self.lib.langList
          |> builtins.filter (name: hostShells ? ${name})
          |> map (name: {
            inherit name;
            value = hostShells.${name};
          })
          |> builtins.listToAttrs
        else
          {
            mcp = (import ../modules/dev/mcp/common.nix { inherit pkgs inputs; }).devShell;
          };
    };
}