{
  programs.fish = {
    enable = true;

    shellAliases = {
      ".." = "cd ..";
      "..." = "cd ../..";

      ls = "eza --icons=always";
      ll = "eza --icons=always -l";
      la = "eza --icons=always -a";
      lla = "eza --icons=always -la";

      # nix-darwin 관련
      rebuild = "sudo darwin-rebuild switch --flake .#kanade";
      update = "nix flake update";
      clean = "nix-collect-garbage -d";
    };

    interactiveShellInit = ''
      set -g fish_greeting ""
      set -g fish_color_command blue
      set -g fish_color_error red
      set -g fish_color_param cyan

      set -gx ANDROID_HOME "$HOME/Library/Android/sdk"
      if test -d "$ANDROID_HOME/ndk"
        set -l ndk_versions "$ANDROID_HOME"/ndk/*
        if test (count $ndk_versions) -gt 0
          set -gx NDK_HOME $ndk_versions[-1]
        end
      end

      set -gx SSH_AUTH_SOCK /Users/imnyang/.ssh/proton-pass-agent.sock
    '';
  };
  programs.starship = {
    enable = true;
    settings = {
      format = "🎼 $directory:$character";
      add_newline = false;
      # username = {
      #   style_user = "purple";
      #   style_root = "purple";
      #   format = "[$user]($style)";
      #   show_always = true;
      # };
      # hostname = {
      #   style = "green";
      #   format = "[$hostname]($style)";
      #   ssh_only = false;
      # };
      directory = {
        style = "fg:#fbb6c4";
        format = "[$path]($style)";
        truncation_length = 3;
      };
      character = {
        success_symbol = " 💕";
        error_symbol = " ⚠️";
      };
    };
  };
}