configuration.nix/modules/home/programs/nushell/default.nix

{
  programs = {
    nushell = {
      enable = true;
      extraConfig = ''
        let carapace_completer = {|spans|
        carapace $spans.0 nushell $spans | from json
        }
        $env.config = {
         show_banner: false,
         completions: {
         case_sensitive: false # case-sensitive completions
         quick: true    # set to false to prevent auto-selecting completions
         partial: true    # set to false to prevent partial filling of the prompt
         algorithm: "fuzzy"    # prefix or fuzzy
         external: {
         # set to false to prevent nushell looking into $env.PATH to find more suggestions
             enable: true 
         # set to lower can improve completion performance at the cost of omitting some options
             max_results: 100 
             completer: $carapace_completer # check 'carapace_completer' 
           }
         }
        } 
        $env.PATH = ($env.PATH | 
        split row (char esep) |
        prepend /home/myuser/.apps |
        append /usr/bin/env
        )
      '';
      sessionVariables = {
        PASSWORD_STORE_DIR = "$HOME/.password-store";
      };
      shellAliases = {
        gcal = ''
          bash -c "cal $(date +%Y)"
        '';
        ssh = "TERM=xterm-256color ssh";
        dev = "nix develop --command $env.SHELL";
        torrent = "transmission-remote";
        vi = "nvim";
      };
    };
    carapace = {
      enable = true;
      enableNushellIntegration = true;
    };
    starship = {
      enable = true;
      settings = {
        add_newline = true;
        character = {
          success_symbol = "[➜](bold green)";
          error_symbol = "[➜](bold red)";
        };
      };
    };
  };
}