fix(distro): fix /etc/nixos ownership, theme discovery, and CLI wrappers

- installer: set recursive ownership of /etc/nixos to main user post-install
- themes: fix NOMARCHY_PATH and discovery logic for Lua theme menu
- scripts: update CLI wrappers (font, theme, wallpaper) to use Walker menus
- core: remove obsolete NOMARCHY_PATH and cleanup dead code
- features: add pkgs.lua for Walker and remove obsolete switcher.nix
- docs: update ROADMAP.md, SCRIPTS.md and STRUCTURE.md

docs/ROADMAP.md

@@ -136,6 +136,8 @@ Nomarchy is moving away from being a "flavor" of Omarchy to its own distinct ide
 
 (Move items here when they land — keep them brief, link the commit/PR.)
 
+- _2026-05-03_ — Fixed CLI wrappers and removed obsolete code. (1) Updated `nomarchy-font`, `nomarchy-theme`, and `nomarchy-wallpaper` CLI wrappers to use modern Walker menus; (2) Removed the obsolete and broken `themes/engine/switcher.nix` and its associated Nix-inlined scripts; (3) Cleaned up remaining `$NOMARCHY_PATH` references from the Omarchy era.
+- _2026-05-03_ — Fixed `/etc/nixos` ownership after installation. Added a `chown -R $USERNAME:users /etc/nixos` step via `nixos-enter` at the end of `installer/install.sh` so the main user owns their configuration and can run `home-manager` commands without `sudo`.
 - _2026-05-01_ — Installer & Script Audit Polish. (1) Fixed a critical bash dynamic scoping bug in `installer/install.sh` where `rc=0` assignments inside functions (Impermanence, Form Factor) were clobbering the main loop's return code, causing the installer to abort when "No" was selected; (2) Polished `hosts/nomarchy-live.nix` with auto-login for the `nixos` user and passwordless sudo for the `wheel` group; (3) Repurposed `nomarchy-toggle-suspend` to execute `systemctl suspend` directly and updated `nomarchy-menu` to reflect this; (4) Updated `nomarchy-launch-wifi` to use `nmtui` in Alacritty; (5) Regenerated `docs/SCRIPTS.md` to reflect the updated script mappings.
 - _2026-04-30_ — `set -e` sweep across `nomarchy-*` scripts. Added `set -e` to 142 of 169 bash scripts that lacked it (27 already had it). Halts a class of "command failed silently in the middle of a chain, system left in half-applied state" bugs that produced repeat-fix commits. One deliberate exception: `nomarchy-menu` runs without `set -e` because it's an interactive UX loop where action failures should re-display the menu rather than abort the script. Pre-commit hook now enforces `bash -n` + `shellcheck --severity=error` so future scripts can't regress this.
 - _2026-04-30_ — Installer disk-phase reliability. Hardened `installer/install.sh` and consolidated the disko configs: (1) `select_disk` now hides the live-ISO boot device(s) so the installer can't format its own boot media (`NOMARCHY_INSTALL_ALLOW_ISO_TARGET=1` to override); (2) added a 10 GiB minimum-capacity preflight; (3) `prewipe_target_drive` enumerates every active dm-crypt mapping backed by the target drive and closes them, drops the silent `|| true` from `wipefs`/`sgdisk`/`dd`, bounds `udevadm settle` to 30s, and refuses to continue if anything is still mounted; (4) wrapped the disko call in `run_disko_with_retry` with last-30-lines + Retry / View full log / Abort dialog on failure; (5) replaced the sed-templated `disko-golden.nix` + `disko-btrfs-multi.nix` pair with a single `disko-config.nix` Nix function called via `--argstr mainDrive … --arg extraDrives '[…]'` — eliminates a class of escaping bugs (cf. `3aadc36`); (6) added an EXIT trap so the tmpfs LUKS key file is removed even on early abort.

docs/SCRIPTS.md

@@ -54,8 +54,8 @@ Phase B (per-batch PRs) refines those into `port-from-omarchy`,
 | `nomarchy-drive-info` | `features/scripts/utils` | features/scripts/utils/nomarchy-drive-select | `kept` |  |
 | `nomarchy-drive-select` | `features/scripts/utils` | features/scripts/utils/nomarchy-drive-info,features/scripts/utils/nomarchy-drive-set-password | `kept` |  |
 | `nomarchy-drive-set-password` | `features/scripts/utils` | features/scripts/utils/nomarchy-drive-select,features/scripts/utils/nomarchy-menu | `kept` |  |
-| `nomarchy-env-update` | `features/scripts/utils` | core/home/bash.nix,core/system/scripts/nomarchy-pkg-add, +7 more | `kept` |  |
-| `nomarchy-font` | `features/scripts/utils` | bin/utils/nomarchy-docs-scripts,core/home/config/nomarchy-skill/SKILL.md, +7 more | `kept` |  |
+| `nomarchy-env-update` | `core/system/scripts` | core/home/bash.nix,core/system/scripts.nix, +7 more | `kept` |  |
+| `nomarchy-font` | `features/scripts/utils` | bin/utils/nomarchy-docs-scripts,core/home/config/nomarchy-skill/SKILL.md, +6 more | `kept` |  |
 | `nomarchy-font-current` | `themes/engine/scripts` | core/home/config/nomarchy-skill/SKILL.md,features/scripts/utils/nomarchy-menu | `kept` |  |
 | `nomarchy-font-list` | `themes/engine/scripts` | core/home/config/nomarchy-skill/SKILL.md,features/scripts/utils/nomarchy-font, +2 more | `kept` |  |
 | `nomarchy-font-set` | `themes/engine/scripts` | core/home/config/nomarchy-skill/SKILL.md,features/scripts/utils/nomarchy-font, +4 more | `kept` |  |
@@ -87,7 +87,7 @@ Phase B (per-batch PRs) refines those into `port-from-omarchy`,
 | `nomarchy-launch-or-focus-webapp` | `features/scripts/utils` | features/desktop/hyprland/config/bindings.conf | `kept` |  |
 | `nomarchy-launch-screensaver` | `features/scripts/utils` | features/desktop/idle.nix,features/scripts/utils/nomarchy-menu | `kept` |  |
 | `nomarchy-launch-tui` | `features/scripts/utils` | core/home/config/nomarchy/default/hypr/bindings/utilities.conf,features/desktop/hyprland/config/bindings.conf, +2 more | `kept` |  |
-| `nomarchy-launch-walker` | `features/scripts/utils` | core/home/config/nomarchy/default/hypr/bindings/clipboard.conf,core/home/config/nomarchy/default/hypr/bindings/utilities.conf, +1 more | `kept` |  |
+| `nomarchy-launch-walker` | `features/scripts/utils` | core/home/config/nomarchy/default/hypr/bindings/clipboard.conf,core/home/config/nomarchy/default/hypr/bindings/utilities.conf, +4 more | `kept` |  |
 | `nomarchy-launch-webapp` | `features/scripts/utils` | core/home/config/nomarchy/default/hypr/plain-bindings.conf,features/desktop/hyprland/config/bindings.conf, +7 more | `kept` |  |
 | `nomarchy-launch-wifi` | `features/scripts/utils` | core/home/config/nomarchy/default/hypr/bindings/utilities.conf,core/home/config/nomarchy/default/mako/core.ini, +4 more | `kept` |  |
 | `nomarchy-lock-screen` | `features/scripts/utils` | core/home/config/nomarchy/default/hypr/bindings/utilities.conf,core/home/config/nomarchy/extensions/menu.sh, +3 more | `kept` |  |
@@ -104,7 +104,7 @@ Phase B (per-batch PRs) refines those into `port-from-omarchy`,
 | `nomarchy-pkg-install` | `features/scripts/utils` | core/home/config/nomarchy-skill/SKILL.md | `kept` |  |
 | `nomarchy-pkg-remove` | `core/system/scripts` | features/scripts/utils/nomarchy-pkg-drop | `kept` |  |
 | `nomarchy-powerprofiles-list` | `core/system/scripts` | features/scripts/utils/nomarchy-menu | `kept` |  |
-| `nomarchy-preflight-migration` | `core/system/scripts` | features/scripts/utils/nomarchy-env-update,features/scripts/utils/nomarchy-migrate-state | `kept` |  |
+| `nomarchy-preflight-migration` | `core/system/scripts` | core/system/scripts/nomarchy-env-update,features/scripts/utils/nomarchy-migrate-state | `kept` |  |
 | `nomarchy-refresh-config` | `features/scripts/utils` | core/home/config/nomarchy-skill/SKILL.md,features/scripts/utils/nomarchy-refresh-fastfetch | `kept` |  |
 | `nomarchy-refresh-fastfetch` | `features/scripts/utils` | — | `unused?` |  |
 | `nomarchy-refresh-hyprland` | `features/scripts/utils` | core/home/config/nomarchy-skill/SKILL.md | `kept` |  |
@@ -150,16 +150,16 @@ Phase B (per-batch PRs) refines those into `port-from-omarchy`,
 | `nomarchy-test-installer` | `features/scripts/utils` | features/scripts/utils/nomarchy-test-vm,README.md | `kept` |  |
 | `nomarchy-test-live-iso` | `features/scripts/utils` | hosts/nomarchy-live.nix | `kept` |  |
 | `nomarchy-test-vm` | `features/scripts/utils` | features/scripts/utils/nomarchy-test-live-iso | `kept` |  |
-| `nomarchy-theme` | `features/scripts/utils` | bin/utils/nomarchy-docs-scripts,core/home/config/nomarchy/default/elephant/nomarchy_background_selector.lua, +17 more | `kept` |  |
+| `nomarchy-theme` | `features/scripts/utils` | bin/utils/nomarchy-docs-scripts,core/home/config/nomarchy/default/elephant/nomarchy_background_selector.lua, +16 more | `kept` |  |
 | `nomarchy-theme-bg-install` | `themes/engine/scripts` | — | `unused?` |  |
 | `nomarchy-theme-bg-next` | `themes/engine/scripts` | core/home/config/nomarchy-skill/SKILL.md,features/scripts/utils/nomarchy-wallpaper, +1 more | `kept` |  |
-| `nomarchy-theme-bg-set` | `themes/engine/scripts` | core/home/config/nomarchy/default/elephant/nomarchy_background_selector.lua | `kept` |  |
+| `nomarchy-theme-bg-set` | `themes/engine/scripts` | core/home/config/nomarchy/default/elephant/nomarchy_background_selector.lua,features/scripts/utils/nomarchy-wallpaper | `kept` |  |
 | `nomarchy-theme-current` | `themes/engine/scripts` | core/home/config/nomarchy-skill/SKILL.md | `kept` |  |
 | `nomarchy-theme-install` | `themes/engine/scripts` | core/home/config/nomarchy-skill/SKILL.md | `kept` |  |
 | `nomarchy-theme-list` | `themes/engine/scripts` | core/home/config/nomarchy-skill/SKILL.md,features/scripts/utils/nomarchy-theme, +1 more | `kept` |  |
 | `nomarchy-theme-refresh` | `themes/engine/scripts` | — | `unused?` |  |
 | `nomarchy-theme-remove` | `themes/engine/scripts` | — | `unused?` |  |
-| `nomarchy-theme-set` | `themes/engine/scripts` | core/home/config/nomarchy/default/elephant/nomarchy_themes.lua,core/home/config/nomarchy-skill/SKILL.md, +9 more | `kept` |  |
+| `nomarchy-theme-set` | `themes/engine/scripts` | core/home/config/nomarchy/default/elephant/nomarchy_themes.lua,core/home/config/nomarchy-skill/SKILL.md, +8 more | `kept` |  |
 | `nomarchy-theme-set-keyboard` | `themes/engine/scripts` | features/scripts/utils/nomarchy-on-boot | `kept` |  |
 | `nomarchy-theme-set-keyboard-asus-rog` | `themes/engine/scripts` | features/scripts/utils/nomarchy-on-boot,themes/engine/scripts/nomarchy-theme-set-keyboard | `kept` |  |
 | `nomarchy-theme-set-keyboard-f16` | `themes/engine/scripts` | features/scripts/utils/nomarchy-on-boot,themes/engine/scripts/nomarchy-theme-set-keyboard | `kept` |  |
@@ -189,7 +189,7 @@ Phase B (per-batch PRs) refines those into `port-from-omarchy`,
 | `nomarchy-voxtype-model` | `features/scripts/utils` | features/desktop/waybar/config/config.jsonc,features/desktop/waybar/themes/summer-night/config.jsonc | `kept` |  |
 | `nomarchy-voxtype-remove` | `features/scripts/utils` | — | `unused?` |  |
 | `nomarchy-voxtype-status` | `features/scripts/utils` | features/desktop/waybar/config/config.jsonc,features/desktop/waybar/themes/summer-night/config.jsonc | `kept` |  |
-| `nomarchy-wallpaper` | `features/scripts/utils` | bin/utils/nomarchy-docs-scripts,core/home/config/nomarchy/default/hypr/autostart.conf, +3 more | `kept` |  |
+| `nomarchy-wallpaper` | `features/scripts/utils` | bin/utils/nomarchy-docs-scripts,core/home/config/nomarchy/default/hypr/autostart.conf, +2 more | `kept` |  |
 | `nomarchy-webapp-handler-hey` | `features/scripts/utils` | — | `unused?` |  |
 | `nomarchy-webapp-handler-zoom` | `features/scripts/utils` | — | `unused?` |  |
 | `nomarchy-webapp-install` | `features/scripts/utils` | features/scripts/utils/nomarchy-webapp-remove-all | `kept` |  |

docs/STRUCTURE.md

@@ -93,7 +93,6 @@ The theming system is the "soul" of Nomarchy, providing dynamic, consistent aest
 ### `themes/engine/` (The Logic)
 - **`loader.nix`**: The core theme loader. It reads the active theme from state and selectively deploys app-specific themed configs (e.g., `btop.theme`, `kitty.conf`) to `~/.config/`.
 - **`stylix.nix`**: Integration with Stylix for base color palette and wallpaper management.
-- **`switcher.nix`**: Provides the `nomarchy-theme-selector` and `nomarchy-wallpaper-selector` tools.
 - **`plymouth.nix`** & **`sddm.nix`**: System-level theming for the boot screen and login manager.
 
 ### `themes/palettes/` (The Data)