configuration.nix

{ config, pkgs, ... }:

let
  ...
in
{
  imports =
    [
      ./hardware-configuration.nix
      <home-manager/nixos>
    ];

  users.users.esk = {
    # ....
  };

  home-manager.useUserPackages = true;
  home-manager.useGlobalPkgs = true;
  home-manager.users.esk = import /home/esk/dotfiles/nixos/home.nix;
}

home.nix

{
  programs.alacritty = {
    enable = true;
    settings = {
      # ...
    };
  };
}