feat(bootstrap): per-os desktop apps, KDE plasma-login-manager and DM resolution

roles/bootstrap/tasks/_desktop.yml

@@ -9,6 +9,8 @@
     _family_pkgs: "{{ bootstrap_desktop_packages[os_family] | default({}) }}"
     _de_config: "{{ _family_pkgs[_de] | default({}) }}"
     _base: "{{ bootstrap_desktop_base_packages[os_family] | default([]) }}"
+    _dm: "{{ system_cfg.features.desktop.display_manager | default('') }}"
+    _dm_override_pkg: "{{ (bootstrap_dm_override_packages[_dm] | default({}))[os_family] | default('') }}"
     _requested_groups: "{{ system_cfg.features.desktop.groups | default([]) }}"
     _group_pkgs: >-
       {{
@@ -20,16 +22,10 @@
         | sum(start=[])
       }}
   ansible.builtin.set_fact:
-    # GNOME ships under different dnf environment groups: Fedora uses
-    # workstation-product-environment, enterprise RHEL/Rocky/Alma use
-    # graphical-server-environment ("Server with GUI").
-    _desktop_groups: >-
-      {{ ['graphical-server-environment']
-         if (_de == 'gnome' and os_family == 'RedHat' and os != 'fedora')
-         else (_de_config.groups | default([])) }}
+    _desktop_groups: "{{ _de_config.groups | default([]) }}"
     _desktop_packages: >-
       {{
-        ((_de_config.packages | default([])) + _base + _group_pkgs)
+        ((_de_config.packages | default([])) + _base + _group_pkgs + [_dm_override_pkg])
         | reject('equalto', '')
         | unique
         | list
@@ -61,7 +57,8 @@
         {{ chroot_command }} dnf --releasever={{ os_version_major }}
         --setopt=install_weak_deps=False install -y {{ _desktop_packages | join(' ') }}
       Debian: >-
-        {{ chroot_command }} apt install -y --install-recommends {{ _desktop_packages | join(' ') }}
+        {{ chroot_command }} env DEBIAN_FRONTEND=noninteractive
+        apt install -y --install-recommends {{ _desktop_packages | join(' ') }}
       Archlinux: >-
         pacstrap /mnt {{ _desktop_packages | join(' ') }}
   ansible.builtin.command: "{{ _install_commands[os_family] }}"

roles/bootstrap/vars/desktop.yml

@@ -1,16 +1,41 @@
 ---
-# Per-family desktop environment package definitions.
-# Keyed by os_family -> environment -> groups (dnf group install) / packages.
 # Wayland only: gnome, kde, sway, hyprland. No X11/xorg-server, no X11-only DEs.
-# DE sets carry the session bits + the DE-specific xdg portal backend; the
-# shared base below (fonts/audio/portal core/power/viewer apps) is layered on
-# top for every DE via bootstrap_desktop_base_packages.
+
+# plasma-login-manager on Arch/Fedora44+ (Plasma 6.6), else sddm.
+bootstrap_kde_login_manager: >-
+  {{
+    'plasma-login-manager'
+    if (os == 'archlinux' or (os == 'fedora' and (os_version | int) >= 44))
+    else 'sddm'
+  }}
+
+# Native DMs ride in each DE's package set; only explicit non-native overrides
+# need a package here. ly is Arch-only (validation rejects it elsewhere first).
+bootstrap_dm_override_packages:
+  ly:
+    Archlinux: ly
+
+# EL = non-fedora RedHat.
+bootstrap_os_is_el: "{{ os in ['almalinux', 'rocky', 'rhel'] }}"
+bootstrap_os_is_el10: "{{ bootstrap_os_is_el | bool and (os_version | default('0') | int) >= 10 }}"
+# EL10 renames (evince->papers, eog->loupe, ppd->tuned-ppd); fira-code + mpv absent on EL.
+bootstrap_desktop_browser: "{{ 'firefox-esr' if os == 'debian' else 'firefox' }}"
+bootstrap_desktop_pdf: "{{ 'papers' if bootstrap_os_is_el10 | bool else 'evince' }}"
+bootstrap_desktop_image: "{{ 'loupe' if bootstrap_os_is_el10 | bool else 'eog' }}"
+bootstrap_desktop_power: "{{ 'tuned-ppd' if bootstrap_os_is_el10 | bool else 'power-profiles-daemon' }}"
+bootstrap_desktop_redhat_codefont: "{{ '' if bootstrap_os_is_el | bool else 'fira-code-fonts' }}"
+bootstrap_desktop_redhat_video: "{{ '' if bootstrap_os_is_el | bool else 'mpv' }}"
+
 bootstrap_desktop_packages:
   RedHat:
     gnome:
-      groups:
-        - workstation-product-environment
-      packages: []
+      groups: []
+      packages:
+        - gnome-shell
+        - gnome-control-center
+        - nautilus
+        - gnome-session
+        - gdm
     kde:
       groups: []
       packages:
@@ -18,7 +43,7 @@ bootstrap_desktop_packages:
         - plasma-nm
         - plasma-pa
         - plasma-systemmonitor
-        - sddm
+        - "{{ bootstrap_kde_login_manager }}"
         - konsole
         - dolphin
         - kate
@@ -41,7 +66,7 @@ bootstrap_desktop_packages:
         - plasma-desktop
         - plasma-nm
         - plasma-pa
-        - sddm
+        - "{{ bootstrap_kde_login_manager }}"
         - konsole
         - dolphin
         - kate
@@ -62,7 +87,7 @@ bootstrap_desktop_packages:
         - plasma-desktop
         - plasma-nm
         - plasma-pa
-        - sddm
+        - "{{ bootstrap_kde_login_manager }}"
         - konsole
         - dolphin
         - kate
@@ -102,26 +127,23 @@ bootstrap_desktop_packages:
         - qt6-wayland
         - bluez
 
-# Shared desktop base, installed for EVERY DE whenever desktop.enabled.
-# Fonts (noto + emoji + one nerd font), audio stack (pipewire + wireplumber +
-# pipewire-pulse), xdg portal core, power-profiles-daemon, and viewer-only base
-# apps (browser, PDF/image/video viewers). DE metas (gnome/plasma) bundle their
-# own file manager + settings, so no file manager is added here - the wlroots
-# DE sets above carry their own (nautilus).
+# Installed for EVERY DE whenever desktop.enabled. No file manager here: DE metas
+# bundle their own and the wlroots sets above carry nautilus.
 bootstrap_desktop_base_packages:
   RedHat:
     - google-noto-sans-fonts
     - google-noto-emoji-fonts
-    - fira-code-fonts
+    - "{{ bootstrap_desktop_redhat_codefont }}"
     - pipewire
     - wireplumber
     - pipewire-pulseaudio
     - xdg-desktop-portal
-    - power-profiles-daemon
+    - "{{ bootstrap_desktop_power }}"
+    - bluez
     - firefox
-    - evince
-    - eog
-    - mpv
+    - "{{ bootstrap_desktop_pdf }}"
+    - "{{ bootstrap_desktop_image }}"
+    - "{{ bootstrap_desktop_redhat_video }}"
   Debian:
     - fonts-noto
     - fonts-noto-color-emoji
@@ -131,7 +153,8 @@ bootstrap_desktop_base_packages:
     - pipewire-pulse
     - xdg-desktop-portal
     - power-profiles-daemon
-    - firefox-esr
+    - bluez
+    - "{{ bootstrap_desktop_browser }}"
     - evince
     - eog
     - mpv
@@ -144,14 +167,14 @@ bootstrap_desktop_base_packages:
     - pipewire-pulse
     - xdg-desktop-portal
     - power-profiles-daemon
+    - bluez
     - firefox
     - evince
     - loupe
     - mpv
 
-# Opt-in package groups, selected per host via features.desktop.groups (a list
-# of group names). _desktop.yml installs the union of the requested groups'
-# packages. Empty selection by default.
+# Opt-in groups selected per host via features.desktop.groups; the union of the
+# requested groups' packages is installed. Empty selection by default.
 desktop_package_groups:
   dev:
     RedHat: