nixos-config/modules/zsh.nix

with import <nixpkgs> {};

{
  enable = true;
  interactiveShellInit = ''
    source ${pkgs.grml-zsh-config}/etc/zsh/zshrc
    # Make user colour green in prompt instead of default blue
    #zstyle ':prompt:grml:left:items:user' pre '%F{green}%B'
    export QUOTING_STYLE=literal
  '';
  promptInit = ""; # otherwise it'll override the grml prompt
  syntaxHighlighting = {
    enable = true;
    highlighters = [ "main" "pattern" "brackets" ];
  };
  autosuggestions = {
    enable = true;
    highlightStyle = "fg=cyan";
  };
  shellAliases = {
    "s" = "systemctl";
    "ip" = "ip -c";
    "n" = "cd /etc/nixos";
    "nt" = "nixos-rebuild test";
    "ns" = "nixos-rebuild switch";
    "nsu" = "nixos-rebuild switch --upgrade";
  };
}