Files
steamify-cachyos/setup-gamescope-boot.sh
T
theupriser 130998345a feat: SteamOS theme from cachyos-vapor with its desktop layout, plus SteamOS desktop extras
- Install CachyOS's cachyos-vapor package instead of extracting Valve's
  steamdeck-kde-presets into ~/.local/share, and remove it again on disable
  if the wizard installed it.
- Apply the Vapor global theme with "Desktop and window layout"
  (lookandfeeltool --resetLayout): Steam Deck wallpaper, SteamOS panel and
  launcher icon. Layout files are backed up and restored, every key from
  Vapor's defaults goes through the undo journal.
- Restore the real previous color scheme (CachyOS's inline BreezeDark colors
  have no scheme name), and clear ColorScheme before plasma-apply-colorscheme,
  which otherwise skips an already named scheme.
- Register Vapor as the dark theme, so Plasma's Dark Mode toggle shows on.
- Drop the SteamOS desktop defaults (GTK, Konsole, gsettings, panel tweaks).
- New lib/steamos-extras.sh, downloaded from Valve's newest
  steamdeck-kde-presets (checksum verified) into /usr/local: Add to Steam,
  Nested Desktop, the gaming-return icon for Return to Gaming Mode, the
  Steam Keyboard window rule and an empty KWallet (only without a wallet).
- single_launcher: re-apply single user's launcher settings after the
  layout reset replaces the launcher.
2026-09-24 10:00:32 +02:00

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#!/bin/bash
#
# setup-gamescope-boot.sh
#
# Wizard that makes a CachyOS (KDE Plasma) install behave like SteamOS:
# boot into a Steam Deck-style gamescope session, switch to the Plasma
# desktop and back, and reset to gamescope on the next boot/logout.
#
# It opens with a menu that detects which components are on and turns
# them on or off to match what the user picks; turning one off restores
# what was there before (system files from .bak-gamescope-wizard backups,
# KDE settings from the undo journal in lib/state.sh). Components live in
# lib/, see README.md. Safe to re-run.
set -uo pipefail
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
for lib in common state packages login-manager single-user steam-desktop steam-machine vapor-theme steamos-extras desktop-shortcut menu; do
# shellcheck source=/dev/null
source "$SCRIPT_DIR/lib/$lib.sh"
done
require_root_helper
echo -e "${c_bold}CachyOS Steam Deck-style Gamescope Boot Wizard${c_reset}"
echo "Turn the SteamOS-style parts on or off. The menu shows what is on now;"
echo "anything you turn off is put back the way it was."
if ! command -v pacman >/dev/null 2>&1; then
err "This doesn't look like an Arch/CachyOS system (no pacman found). Aborting."
exit 1
fi
# Everything per-user (autologin user, Steam, theme, shortcut) is for the
# user running the script.
TARGET_USER="$(id -un)"
detect_components
run_menu || { info "Nothing changed."; exit 0; }
plan_changes
if [[ ${#TO_DISABLE[@]} -eq 0 && ${#TO_ENABLE[@]} -eq 0 ]]; then
ok "Everything is already the way you want it."
exit 0
fi
echo
echo -e "${c_bold}This will:${c_reset}"
for c in "${TO_DISABLE[@]}"; do echo " - turn off: ${LABEL[$c]}"; done
for c in "${TO_ENABLE[@]}"; do
if [[ "${CURRENT[$c]}" == 1 ]]; then echo " - re-apply: ${LABEL[$c]}"; else echo " - turn on: ${LABEL[$c]}"; fi
done
ask_yn "Go ahead?" y || { info "Nothing changed."; exit 0; }
# Ask for the sudo password once and keep it fresh, instead of prompting at
# random points during the run.
sudo -n true 2>/dev/null || sudo -v || exit 1
while true; do sudo -n true; sleep 50; kill -0 "$$" 2>/dev/null || exit; done 2>/dev/null &
apply_changes
echo
detect_components
echo -e "${c_bold}Done. Current state:${c_reset}"
for c in "${COMPONENTS[@]}"; do
component_available "$c" || continue
if [[ "${CURRENT[$c]}" == 1 ]]; then echo -e " ${c_green}on ${c_reset} ${LABEL[$c]}"; else echo " off ${LABEL[$c]}"; fi
done
if [[ ${#FAILED[@]} -gt 0 ]]; then
warn "These had problems (see above): ${FAILED[*]}"
fi
echo
# Login manager changes only take effect after a restart.
if [[ " ${TO_DISABLE[*]} ${TO_ENABLE[*]} " == *" gaming "* || " ${TO_DISABLE[*]} ${TO_ENABLE[*]} " == *" single "* ]]; then
if ask_yn "Restart now so the changes take effect?" n; then
sudo reboot
else
info "Restart whenever you're ready."
fi
fi