refactor: implement component-based architecture for enhanced maintainability

- Reorganize directory structure into core/, features/, and themes/
- Colocate application Nix logic, configs, scripts, and theme overrides
- Implement 'Inversion of Control' for theming: apps now pull theme-specific layouts
- Update flake.nix and shared library paths to match the new structure
- Document the new Feature-Centric architecture in README.md

core/home/behavior.nix

@@ -0,0 +1,97 @@
+{ config, lib, ... }:
+
+# Behavior Configuration Module
+#
+# This module deploys non-visual configuration files (keybindings, input settings,
+# window rules, etc.) with lib.mkDefault, allowing downstream users to override.
+#
+# Visual/theme configs are handled separately by theme-loader.nix and stylix.nix.
+#
+# Behavior configs include:
+# - Keybindings (bindings, media keys, clipboard)
+# - Input settings (keyboard, mouse, touchpad)
+# - Window rules and layouts
+# - Autostart applications
+# - Environment variables
+
+let
+  configDir = ../../config;
+  overridesDir = "${config.home.homeDirectory}/.config/nomarchy/overrides";
+
+  # Check if user has an override for a specific config
+  hasOverride = path: builtins.pathExists "${overridesDir}/${path}";
+
+  # Behavior config categories with their source paths
+  behaviorConfigs = {
+    # Hyprland behavior (non-visual)
+    "nomarchy/default/hypr/bindings.conf" = "hypr/bindings.conf";
+    "nomarchy/default/hypr/bindings/media.conf" = "hypr/bindings/media.conf";
+    "nomarchy/default/hypr/bindings/clipboard.conf" = "hypr/bindings/clipboard.conf";
+    "nomarchy/default/hypr/bindings/tiling-v2.conf" = "hypr/bindings/tiling-v2.conf";
+    "nomarchy/default/hypr/bindings/utilities.conf" = "hypr/bindings/utilities.conf";
+    "nomarchy/default/hypr/input.conf" = "hypr/input.conf";
+    "nomarchy/default/hypr/windows.conf" = "hypr/windows.conf";
+    "nomarchy/default/hypr/autostart.conf" = "hypr/autostart.conf";
+    "nomarchy/default/hypr/envs.conf" = "hypr/envs.conf";
+    "nomarchy/default/hypr/looknfeel.conf" = "hypr/looknfeel.conf";
+
+    # App-specific window rules (behavior, not visual)
+    "nomarchy/default/hypr/apps.conf" = "hypr/apps.conf";
+    "nomarchy/default/hypr/apps/qemu.conf" = "hypr/apps/qemu.conf";
+    "nomarchy/default/hypr/apps/steam.conf" = "hypr/apps/steam.conf";
+    "nomarchy/default/hypr/apps/terminals.conf" = "hypr/apps/terminals.conf";
+    "nomarchy/default/hypr/apps/walker.conf" = "hypr/apps/walker.conf";
+    "nomarchy/default/hypr/apps/browser.conf" = "hypr/apps/browser.conf";
+    "nomarchy/default/hypr/apps/1password.conf" = "hypr/apps/1password.conf";
+    "nomarchy/default/hypr/apps/bitwarden.conf" = "hypr/apps/bitwarden.conf";
+    "nomarchy/default/hypr/apps/pip.conf" = "hypr/apps/pip.conf";
+    "nomarchy/default/hypr/apps/system.conf" = "hypr/apps/system.conf";
+    "nomarchy/default/hypr/apps/localsend.conf" = "hypr/apps/localsend.conf";
+    "nomarchy/default/hypr/apps/telegram.conf" = "hypr/apps/telegram.conf";
+    "nomarchy/default/hypr/apps/geforce.conf" = "hypr/apps/geforce.conf";
+    "nomarchy/default/hypr/apps/moonlight.conf" = "hypr/apps/moonlight.conf";
+    "nomarchy/default/hypr/apps/retroarch.conf" = "hypr/apps/retroarch.conf";
+    "nomarchy/default/hypr/apps/webcam-overlay.conf" = "hypr/apps/webcam-overlay.conf";
+    "nomarchy/default/hypr/apps/davinci-resolve.conf" = "hypr/apps/davinci-resolve.conf";
+    "nomarchy/default/hypr/apps/hyprshot.conf" = "hypr/apps/hyprshot.conf";
+  };
+
+in
+{
+  options.nomarchy.behavior = {
+    hyprland = {
+      bindings = lib.mkOption {
+        type = lib.types.bool;
+        default = true;
+        description = "Whether to deploy default Hyprland keybindings.";
+      };
+      input = lib.mkOption {
+        type = lib.types.bool;
+        default = true;
+        description = "Whether to deploy default input settings.";
+      };
+      windowRules = lib.mkOption {
+        type = lib.types.bool;
+        default = true;
+        description = "Whether to deploy default window rules.";
+      };
+      autostart = lib.mkOption {
+        type = lib.types.bool;
+        default = true;
+        description = "Whether to deploy default autostart configuration.";
+      };
+    };
+  };
+
+  config = {
+    # Note: The actual config deployment is handled by configs.nix
+    # This module provides the options and documentation for behavior configs
+    # The separation allows users to selectively disable behavior categories
+
+    # Ensure behavior config directories exist in overrides
+    home.activation.createBehaviorOverrideDirs = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
+      mkdir -p "${overridesDir}/hypr/bindings"
+      mkdir -p "${overridesDir}/hypr/apps"
+    '';
+  };
+}