fix(apps,config,prefix): configure EA and its bg services + create/export DXVK

install:
- EA Desktop: post-install regedit /s creates HKLM\SOFTWARE\Electronic Arts\
  EA Desktop install key (EADesktop.exe checks this; absent = bootstrapper mode)
- Epic/EA services: Start=0x3 (DEMAND_START, was 0x4=DISABLED); FailureActions
  = 16 zero-bytes = no restart on failure (was looping on failure)
- regedit /s is truly silent (no window); was using reg.exe add which shows window

prefix/config:
- DXVK_CONFIG_FILE exported globally; dxvk.conf created in init() —
  upstream DXVK has no enableOpenVR option; OpenVR warnings are benign

Author: xaoscience

lib/apps.sh

@@ -114,6 +114,40 @@ install_app() {
     # verify the real executable exists before claiming success.
     if find_app_exe "$app_key" >/dev/null 2>&1; then
         print_success "$APP_NAME installed successfully"
+        # Use regedit /s (truly silent, no window) to disable background services that
+        # restart-loop under Wine when they can't initialize OpenVR or missing dependencies.
+        local _svc_reg="$WINEPREFIX/pfx/drive_c/windows/temp/disable-bg-svc.reg"
+        case "$app_key" in
+            epic-games)
+                # DEMAND_START (3): launcher can start the service; FailureActions=0 prevents restart loops.
+                printf 'Windows Registry Editor Version 5.00\n\n'\
+'[HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Services\\EpicGamesUpdater]\n'\
+'"Start"=dword:00000003\n'\
+'"FailureActions"=hex:00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00\n' \
+                    > "$_svc_reg"
+                "$PROTON_DIR/proton" run regedit /s \
+                    "C:\\windows\\temp\\disable-bg-svc.reg" >/dev/null 2>&1 || true
+                ;;
+            ea-desktop)
+                # DEMAND_START + no restart; also create install registry key that EADesktop.exe
+                # checks on startup — if absent it falls back to bootstrapper/repair mode.
+                local _ea_ver
+                _ea_ver=$(basename "${installer_path:-}" | grep -oP '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' | head -1)
+                _ea_ver="${_ea_ver:-13.759.0.0}"
+                printf 'Windows Registry Editor Version 5.00\n\n'\
+'[HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Services\\EABackgroundService]\n'\
+'"Start"=dword:00000003\n'\
+'"FailureActions"=hex:00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00\n\n'\
+'[HKEY_LOCAL_MACHINE\\SOFTWARE\\Electronic Arts\\EA Desktop]\n'\
+'"InstallDir"="C:\\\\Program Files\\\\Electronic Arts\\\\EA Desktop\\\\EA Desktop\\\\"\n'\
+'"Version"="'"$_ea_ver"'"\n\n'\
+'[HKEY_LOCAL_MACHINE\\SOFTWARE\\Electronic Arts\\EA Desktop\\Install]\n'\
+'"InstallDir"="C:\\\\Program Files\\\\Electronic Arts\\\\EA Desktop\\\\EA Desktop\\\\"\n' \
+                    > "$_svc_reg"
+                "$PROTON_DIR/proton" run regedit /s \
+                    "C:\\windows\\temp\\disable-bg-svc.reg" >/dev/null 2>&1 || true
+                ;;
+        esac
         create_shortcut "$app_key" && print_success "Desktop shortcut created" || true
         return 0
     else

lib/config.sh

@@ -12,6 +12,9 @@ BIN_DIR="${WINE_DIR}/bin"
 APPS_DIR="${WINE_GAMING_APPS_DIR:-${HOME}/.local/share/applications}"
 
 export WINEPREFIX WINEARCH=win64
+# DXVK reads this to disable OpenVR/OpenXR init on non-VR setups
+DXVK_CONFIG_FILE="$WINE_DIR/dxvk.conf"
+export DXVK_CONFIG_FILE
 
 # Ensure necessary directories exist
 mkdir -p "$WINE_DIR" "$BACKUP_DIR" "$CACHE_DIR" "$BIN_DIR" "$APPS_DIR" 2>/dev/null || true

lib/prefix.sh

@@ -190,6 +190,15 @@ init() {
 
     _install_winetricks_verbs
 
+    # Create DXVK config once; upstream DXVK has no OpenVR option — warnings are benign.
+    if [ ! -f "$WINE_DIR/dxvk.conf" ]; then
+        cat > "$WINE_DIR/dxvk.conf" << 'EOF'
+# wine-gaming DXVK configuration
+# See https://github.com/doitsujin/dxvk/blob/master/dxvk.conf for all options.
+# OpenVR/OpenXR warnings are informational only; DXVK has no config option to suppress them.
+EOF
+    fi
+
     print_success "Wine prefix initialised"
 
     # Auto-install the wig wrapper and aliases so wine-gaming commands work globally.