nixos-config/modules/alacritty.nix

{ config, pkgs, lib, ... }:
let
  cfg = config.sconfig.alacritty;
in
{
  options.sconfig.alacritty.enable = lib.mkEnableOption "Enable Alacritty";

  config = lib.mkIf cfg.enable {

    environment.systemPackages = [
      pkgs.alacritty
      (pkgs.writeTextFile {
        name = "alacritty.yml";
        destination = "/etc/xdg/alacritty.yml";
        text = ''
          env:
            TERM: xterm-256color
          key_bindings:
          - { key: N, mods: Control|Shift, action: SpawnNewInstance }
          - { key: T, mods: Control|Shift, action: SpawnNewInstance }
          - { key: PageUp,   mods: Shift, action: ScrollHalfPageUp }
          - { key: PageDown, mods: Shift, action: ScrollHalfPageDown }
        '';
      })
    ];

    programs.bash.interactiveShellInit = ''
      function _set_title() {
        printf "\033]0;%s@%s:%s\007" "''${USER}" "''${HOSTNAME%%.*}" "''${PWD/#$HOME/\~}"
      }
      [ -z "$VTE_VERSION" ] && PROMPT_COMMAND="_set_title; $PROMPT_COMMAND"
    '';

    environment.etc."xdg/alacritty.yml".source =
      "/run/current-system/sw/etc/xdg/alacritty.yml";

  };
}