feat(distro): rename ISO targets and fix UEFI boot in live test script

- Rename installerIso and installerIsoGraphical to nomarchy-installer and nomarchy-live.
- Update host configurations with proper Nomarchy branding and volume IDs.
- Fix nomarchy-test-live-iso QEMU launch by using -drive if=pflash for UEFI firmware.
- Add nomarchy-build-live-iso utility script.
- Scrub remaining Omarchy references in Plymouth, installer messages, and docs.
- Regenerate docs/SCRIPTS.md to reflect new and renamed utilities.

docs/ROADMAP.md

@@ -6,7 +6,7 @@ If you're new here, also read [`docs/STRUCTURE.md`](STRUCTURE.md) and [`docs/OPT
 
 ## 1. Vision & guardrails
 
-Nomarchy is a NixOS-based distribution that gives you the Omarchy desktop (Hyprland + waybar + walker + a curated theming engine) on a strictly declarative, flake-based foundation. Goal: power-user polish without giving up reproducibility.
+Nomarchy is a NixOS-based distribution that gives you a polished Hyprland desktop (Hyprland + waybar + walker + a curated theming engine) on a strictly declarative, flake-based foundation. Goal: power-user polish without giving up reproducibility.
 
 Guardrails (apply when adding anything):
 
@@ -34,7 +34,7 @@ Guardrails (apply when adding anything):
 - **Declarative-state migration.** Move the bits of `state.json` that don't actually need runtime mutability (theme, font, isLightMode) into NixOS / home-manager options, leaving only genuinely runtime-only state behind. Reduces the "two sources of truth" surface.
 - **Rolling vs pinned channel choice in the installer.** Today the generated flake pins `nomarchy` to a rev. Offer a "rolling" option that follows `main` and a `nomarchy-rollback` helper for stuck rebuilds.
 - **Theme creation wizard.** A `nomarchy-theme-new` script that scaffolds a new palette from a base16 hex set (or by sampling a wallpaper), runs `nomarchy-themes-prebuild`, and opens a PR template.
-- **CI matrix on Forgejo Actions.** On every push: `nix flake check`, build `installerIso`, `installerIsoGraphical`, `default`. On tag: publish ISOs as release artefacts.
+- **CI matrix on Forgejo Actions.** On every push: `nix flake check`, build `nomarchy-installer`, `nomarchy-live`, `default`. On tag: publish ISOs as release artefacts.
 - **Golden-image VM tests per palette.** A `nixosTest` per palette that boots the `default` config, takes a screenshot, and diffs against a golden image. Catches Stylix regressions before they hit users.
 - **Forgejo release pipeline.** `vYY.MM.x` tags matching the upstream NixOS channel; the pipeline pushes the three ISOs and an updated `flake.lock` snapshot.
 - **Optional `nomarchy-installer-vm`** rebuilt as a real flake app (not a one-off shell script) so users can install Nomarchy into a libvirt VM declaratively.
@@ -111,7 +111,22 @@ Each PR description should reference the row(s) in `docs/SCRIPTS.md` it closes,
 - `nixosTest` per palette: boots `default` in a VM, screenshots the SDDM splash and the Hyprland desktop, diffs vs golden. Failure surfaces as CI red.
 - A small `bin/utils/nomarchy-bench-iso-build` that records ISO build time + size into a per-commit JSON so we notice regressions.
 
-## 8. Process notes
+## 8. Pillar: Distro Branding
+
+Nomarchy is moving away from being a "flavor" of Omarchy to its own distinct identity. This pillar tracks the effort to scrub remaining upstream references and solidify the Nomarchy name across the system.
+
+- **ISO & Config Renaming:**
+  - Rename `installerIso` and `installerIsoGraphical` in `flake.nix` to `nomarchy-installer` and `nomarchy-live`.
+  - Update `hosts/nomarchy-installer.nix` and `hosts/nomarchy-live.nix` internal metadata.
+- **Bootloader & Splash:**
+  - Update Limine/systemd-boot entries to display "Nomarchy" instead of "NixOS".
+  - Scrub "Omarchy" from `themes/engine/plymouth/nomarchy.script`.
+  - Ensure the SDDM theme metadata in `themes/engine/sddm/` is fully Nomarchy-branded.
+- **System Scrub:**
+  - Grep and replace "NixOS" and "Omarchy" in installer messages, scripts, and non-technical documentation where they refer to the distribution identity.
+  - Update `/etc/os-release` via `environment.etc."os-release"` to ensure `NAME` and `PRETTY_NAME` reflect Nomarchy.
+
+## 9. Process notes
 
 - **Branch naming:** `wave/<pillar>-<short-slug>`. Examples: `wave/audit-pkg-scripts`, `wave/installer-disk-metadata`, `wave/laptop-preset`.
 - **One PR per audit batch.** Reference rows in `docs/SCRIPTS.md`. Smaller PRs review faster.
@@ -123,6 +138,9 @@ Each PR description should reference the row(s) in `docs/SCRIPTS.md` it closes,
 
 (Move items here when they land — keep them brief, link the commit/PR.)
 
+- _2026-04-26_ — Distro Branding Phase 2. Updated bootloader entries to use "Nomarchy" as the label. Set ISO volume IDs to `NOMARCHY_INSTALLER` and `NOMARCHY_LIVE`. Fixed branding in Plymouth theme metadata and SDDM metadata.
+- _2026-04-26_ — Distro Branding Phase 1. Renamed `installerIso` to `nomarchy-installer` and `installerIsoGraphical` to `nomarchy-live`. Updated metadata and host configurations. Scrubbed "Omarchy" from Plymouth and installer messages.
+- _2026-04-26_ — Fix `hardware-db.sh` missing in `nomarchy-installer.nix`. Resolved boot error where `install.sh` failed to source the hardware database on the TTY installer ISO.
 - _2026-04-26_ — Installer review-then-edit flow (`installer/install.sh`). Review screen now offers Continue / Edit a field / Abort. Edit opens a multi-select of saved fields; chosen fields clear and the next loop iteration re-prompts only those. Benefits both fresh installs (typo fixes without abort+restart) and `--resume` (lands on review immediately, since the loaded vars short-circuit each prompt). LUKS passphrase is held in memory across loop iterations so re-edits don't re-ask for it.
 - _2026-04-26_ — `docs/TROUBLESHOOTING.md`. The five most common rebuild errors (option-already-declared, attribute-missing, Stylix target conflict, home-manager `.hm-bak` churn, impermanence path missing) with copy-paste fixes. Linked from `README.md` and `docs/MIGRATION.md`.
 - _2026-04-26_ — Gaming preset module (`core/system/gaming.nix`). Opt-in `nomarchy.system.gaming.enable` (default false). Wires `programs.steam` (with `remotePlay`/`localNetworkGameTransfers` firewall holes via `mkDefault`), `programs.gamemode`, and `services.flatpak`. Flathub remote and Hyprland window-rule split into separate Next-column rows.