flake/users/guanranwang/darwin/presets/core.nix

{pkgs, ...}: {
  users = {
    knownUsers = ["guanranwang"];
    users."guanranwang" = {
      createHome = true;
      description = "Guanran Wang";
      home = "/Users/guanranwang";
      shell = pkgs.fish;
      uid = 501;
    };
  };
}