shell.nix

let
  lock = {
    nixpkgs = {
      rev = "51bb9f3e9ab6161a3bf7746e20b955712cef618b";
      sha256 = "1bqla14c80ani27c7901rnl37kiiqrvyixs6ifvm48p5y6xbv1p7";
    };
  };

  nixpkgs = with lock.nixpkgs;
  builtins.fetchTarball {
    url = "https://github.com/NixOS/nixpkgs/archive/${rev}.tar.gz";
    inherit sha256;
  };

  pkgs = import nixpkgs {};
in

pkgs.mkShell {
  buildInputs = with pkgs; [
    gauche
    shellcheck
    vim-vint
    nodePackages.vim-language-server
  ];

  GAUCHE_SRC = pkgs.gauche.src;

  VIM_SRC = pkgs.vim.src;

  GAUCHE_READ_EDIT = "yes";
}