nixpkgs/pkgs/tools/inputmethods/fusuma/gemset.nix

{
  fusuma = {
    groups = ["default"];
    platforms = [];
    source = {
      remotes = ["https://rubygems.org"];
      sha256 = "150jc8jyqj3w4k13lf1ihqmm2sld1yawp4jwnf43jixnc9rmzx6f";
      type = "gem";
    };
    version = "1.3.0";
  };
}