nixos-config/home/features/AGENTS.md

features/ - Modular Home Manager Features

Toggle-able feature modules using mkEnableOption pattern.

Structure

features/
├── cli/            # Shell & terminal tools
│   ├── default.nix   # Always-on CLI tools (bat, eza, direnv, carapace)
│   ├── nushell.nix   # features.cli.nushell.enable
│   ├── fzf.nix       # features.cli.fzf.enable
│   ├── starship.nix  # features.cli.starship.enable
│   ├── zellij.nix    # Always-on zellij config
│   └── secrets.nix   # features.cli.secrets.enable
├── coding/         # Dev tools
│   └── default.nix   # features.coding.* (zed, neovim)
└── desktop/        # GUI applications
    ├── default.nix   # Always-on (kitty, xdg, cursor)
    ├── hyprland.nix  # features.desktop.hyprland.enable
    ├── gaming.nix    # features.desktop.gaming.enable
    ├── media.nix     # features.desktop.media.enable
    └── ...

Creating a New Feature

1. Create <category>/<feature>.nix:

{config, lib, ...}:
with lib; let
  cfg = config.features.<category>.<feature>;
in {
  options.features.<category>.<feature>.enable = 
    mkEnableOption "description";

  config = mkIf cfg.enable {
    # Configuration when enabled
  };
}

2. Import in <category>/default.nix
3. Enable in user configs: features.<category>.<feature>.enable = true;

Feature Categories

Category	Purpose	Key features
cli	Shell tools	nushell, fzf, starship, nitch, secrets
coding	Development	(in default.nix, no sub-features yet)
desktop	GUI/WM	hyprland, gaming, media, office, crypto, fonts, rofi, wayland

Always-On vs Toggle-able

• default.nix: Configuration that applies when the category is imported (no enable flag)
• .nix: Must be explicitly enabled via features.*.enable = true

Desktop Feature Details

• hyprland.nix: Window manager config, keybinds, window rules (host overrides monitors/workspaces)
• gaming.nix: Steam, gamemode, mangohud
• media.nix: mpv, obs-studio, spotify
• wayland.nix: Clipboard, screenshots, idle management