raveos update

1 files changed, 0 insertions, 2076 deletions

diff --git a/raveos-hyprland-theme/theme-data/DankMaterialShell/core/internal/greeter/installer.go b/raveos-hyprland-theme/theme-data/DankMaterialShell/core/internal/greeter/installer.go
deleted file mode 100644
index ace72ce..0000000
--- a/raveos-hyprland-theme/theme-data/DankMaterialShell/core/internal/greeter/installer.go
+++ /dev/null
@@ -1,2076 +0,0 @@
-package greeter
-
-import (
-	"bufio"
-	"context"
-	_ "embed"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"strings"
-	"time"
-
-	"github.com/AvengeMedia/DankMaterialShell/core/internal/config"
-	"github.com/AvengeMedia/DankMaterialShell/core/internal/distros"
-	"github.com/AvengeMedia/DankMaterialShell/core/internal/matugen"
-	sharedpam "github.com/AvengeMedia/DankMaterialShell/core/internal/pam"
-	"github.com/AvengeMedia/DankMaterialShell/core/internal/utils"
-	"github.com/sblinch/kdl-go"
-	"github.com/sblinch/kdl-go/document"
-)
-
-var appArmorProfileData []byte
-
-const appArmorProfileDest = "/etc/apparmor.d/usr.bin.dms-greeter"
-
-const GreeterCacheDir = "/var/cache/dms-greeter"
-
-func DetectDMSPath() (string, error) {
-	return config.LocateDMSConfig()
-}
-
-// IsNixOS returns true when running on NixOS, which manages PAM configs through
-// its module system. The DMS PAM managed block won't be written on NixOS.
-func IsNixOS() bool {
-	_, err := os.Stat("/etc/NIXOS")
-	return err == nil
-}
-
-func DetectGreeterGroup() string {
-	data, err := os.ReadFile("/etc/group")
-	if err != nil {
-		fmt.Fprintln(os.Stderr, "⚠ Warning: could not read /etc/group, defaulting to greeter")
-		return "greeter"
-	}
-
-	if group, found := utils.FindGroupData(string(data), "greeter", "greetd", "_greeter"); found {
-		return group
-	}
-
-	fmt.Fprintln(os.Stderr, "⚠ Warning: no greeter group found in /etc/group, defaulting to greeter")
-	return "greeter"
-}
-
-func hasPasswdUser(passwdData, user string) bool {
-	prefix := user + ":"
-	for line := range strings.SplitSeq(passwdData, "\n") {
-		if strings.HasPrefix(line, prefix) {
-			return true
-		}
-	}
-	return false
-}
-
-func findPasswdUser(passwdData string, candidates ...string) (string, bool) {
-	for _, candidate := range candidates {
-		if hasPasswdUser(passwdData, candidate) {
-			return candidate, true
-		}
-	}
-	return "", false
-}
-
-func stripTomlComment(line string) string {
-	trimmed := strings.TrimSpace(line)
-	if idx := strings.Index(trimmed, "#"); idx >= 0 {
-		return strings.TrimSpace(trimmed[:idx])
-	}
-	return trimmed
-}
-
-func parseTomlSection(line string) (string, bool) {
-	trimmed := stripTomlComment(line)
-	if len(trimmed) < 3 || !strings.HasPrefix(trimmed, "[") || !strings.HasSuffix(trimmed, "]") {
-		return "", false
-	}
-	return strings.TrimSpace(trimmed[1 : len(trimmed)-1]), true
-}
-
-func extractDefaultSessionUser(configContent string) string {
-	inDefaultSession := false
-	for line := range strings.SplitSeq(configContent, "\n") {
-		if section, ok := parseTomlSection(line); ok {
-			inDefaultSession = section == "default_session"
-			continue
-		}
-
-		if !inDefaultSession {
-			continue
-		}
-
-		trimmed := stripTomlComment(line)
-		if !strings.HasPrefix(trimmed, "user =") && !strings.HasPrefix(trimmed, "user=") {
-			continue
-		}
-
-		parts := strings.SplitN(trimmed, "=", 2)
-		if len(parts) != 2 {
-			continue
-		}
-		user := strings.Trim(strings.TrimSpace(parts[1]), `"`)
-		if user != "" {
-			return user
-		}
-	}
-
-	return ""
-}
-
-func upsertDefaultSession(configContent, greeterUser, command string) string {
-	lines := strings.Split(configContent, "\n")
-	var out []string
-
-	inDefaultSession := false
-	foundDefaultSession := false
-	defaultSessionUserSet := false
-	defaultSessionCommandSet := false
-
-	appendDefaultSessionFields := func() {
-		if !defaultSessionUserSet {
-			out = append(out, fmt.Sprintf(`user = "%s"`, greeterUser))
-		}
-		if !defaultSessionCommandSet {
-			out = append(out, command)
-		}
-	}
-
-	for _, line := range lines {
-		if section, ok := parseTomlSection(line); ok {
-			if inDefaultSession {
-				appendDefaultSessionFields()
-			}
-
-			inDefaultSession = section == "default_session"
-			if inDefaultSession {
-				foundDefaultSession = true
-				defaultSessionUserSet = false
-				defaultSessionCommandSet = false
-			}
-
-			out = append(out, line)
-			continue
-		}
-
-		if inDefaultSession {
-			trimmed := stripTomlComment(line)
-			if strings.HasPrefix(trimmed, "user =") || strings.HasPrefix(trimmed, "user=") {
-				out = append(out, fmt.Sprintf(`user = "%s"`, greeterUser))
-				defaultSessionUserSet = true
-				continue
-			}
-
-			if strings.HasPrefix(trimmed, "command =") || strings.HasPrefix(trimmed, "command=") {
-				if !defaultSessionCommandSet {
-					out = append(out, command)
-					defaultSessionCommandSet = true
-				}
-				continue
-			}
-		}
-
-		out = append(out, line)
-	}
-
-	if inDefaultSession {
-		appendDefaultSessionFields()
-	}
-
-	if !foundDefaultSession {
-		if len(out) > 0 && strings.TrimSpace(out[len(out)-1]) != "" {
-			out = append(out, "")
-		}
-		out = append(out, "[default_session]")
-		out = append(out, fmt.Sprintf(`user = "%s"`, greeterUser))
-		out = append(out, command)
-	}
-
-	return strings.Join(out, "\n")
-}
-
-func DetectGreeterUser() string {
-	passwdData, err := os.ReadFile("/etc/passwd")
-	if err == nil {
-		passwdContent := string(passwdData)
-
-		if configData, cfgErr := os.ReadFile("/etc/greetd/config.toml"); cfgErr == nil {
-			if configured := extractDefaultSessionUser(string(configData)); configured != "" && hasPasswdUser(passwdContent, configured) {
-				return configured
-			}
-		}
-
-		if user, found := findPasswdUser(passwdContent, "greeter", "greetd", "_greeter"); found {
-			return user
-		}
-	} else {
-		fmt.Fprintln(os.Stderr, "⚠ Warning: could not read /etc/passwd, defaulting greeter user to 'greeter'")
-	}
-
-	if configData, cfgErr := os.ReadFile("/etc/greetd/config.toml"); cfgErr == nil {
-		if configured := extractDefaultSessionUser(string(configData)); configured != "" {
-			return configured
-		}
-	}
-
-	fmt.Fprintln(os.Stderr, "⚠ Warning: no greeter user found, defaulting to 'greeter'")
-	return "greeter"
-}
-
-func resolveGreeterWrapperPath() string {
-	if override := strings.TrimSpace(os.Getenv("DMS_GREETER_WRAPPER_CMD")); override != "" {
-		return override
-	}
-
-	// Packaged installs only use the official wrapper; never fall back to /usr/local/bin.
-	if IsGreeterPackaged() {
-		packagedWrapper := "/usr/bin/dms-greeter"
-		if info, err := os.Stat(packagedWrapper); err == nil && !info.IsDir() && (info.Mode()&0o111) != 0 {
-			return packagedWrapper
-		}
-		fmt.Fprintln(os.Stderr, "⚠ Warning: packaged dms-greeter detected, but /usr/bin/dms-greeter is missing or not executable")
-		return packagedWrapper
-	}
-
-	for _, candidate := range []string{"/usr/bin/dms-greeter", "/usr/local/bin/dms-greeter"} {
-		if info, err := os.Stat(candidate); err == nil && !info.IsDir() && (info.Mode()&0o111) != 0 {
-			return candidate
-		}
-	}
-
-	if path, err := exec.LookPath("dms-greeter"); err == nil {
-		resolved := path
-		if realPath, realErr := filepath.EvalSymlinks(path); realErr == nil {
-			resolved = realPath
-		}
-		if strings.HasPrefix(resolved, "/home/") || strings.HasPrefix(resolved, "/tmp/") {
-			fmt.Fprintf(os.Stderr, "⚠ Warning: ignoring non-system dms-greeter on PATH: %s\n", path)
-		} else {
-			return path
-		}
-	}
-
-	return "/usr/bin/dms-greeter"
-}
-
-func DetectCompositors() []string {
-	var compositors []string
-
-	if utils.CommandExists("niri") {
-		compositors = append(compositors, "niri")
-	}
-	if utils.CommandExists("Hyprland") {
-		compositors = append(compositors, "Hyprland")
-	}
-
-	return compositors
-}
-
-func PromptCompositorChoice(compositors []string) (string, error) {
-	fmt.Println("\nMultiple compositors detected:")
-	for i, comp := range compositors {
-		fmt.Printf("%d) %s\n", i+1, comp)
-	}
-
-	reader := bufio.NewReader(os.Stdin)
-	fmt.Print("Choose compositor for greeter (1-2): ")
-	response, err := reader.ReadString('\n')
-	if err != nil {
-		return "", fmt.Errorf("error reading input: %w", err)
-	}
-
-	response = strings.TrimSpace(response)
-	switch response {
-	case "1":
-		return compositors[0], nil
-	case "2":
-		if len(compositors) > 1 {
-			return compositors[1], nil
-		}
-		return "", fmt.Errorf("invalid choice")
-	default:
-		return "", fmt.Errorf("invalid choice")
-	}
-}
-
-// EnsureGreetdInstalled checks if greetd is installed - greetd is a daemon in /usr/sbin on Debian/Ubuntu
-func EnsureGreetdInstalled(logFunc func(string), sudoPassword string) error {
-	greetdFound := utils.CommandExists("greetd")
-	if !greetdFound {
-		for _, p := range []string{"/usr/sbin/greetd", "/sbin/greetd"} {
-			if _, err := os.Stat(p); err == nil {
-				greetdFound = true
-				break
-			}
-		}
-	}
-	if greetdFound {
-		logFunc("✓ greetd is already installed")
-		return nil
-	}
-
-	logFunc("greetd is not installed. Installing...")
-
-	osInfo, err := distros.GetOSInfo()
-	if err != nil {
-		return fmt.Errorf("failed to detect OS: %w", err)
-	}
-
-	config, exists := distros.Registry[osInfo.Distribution.ID]
-	if !exists {
-		return fmt.Errorf("unsupported distribution for automatic greetd installation: %s", osInfo.Distribution.ID)
-	}
-
-	ctx := context.Background()
-	var installCmd *exec.Cmd
-
-	switch config.Family {
-	case distros.FamilyArch:
-		if sudoPassword != "" {
-			installCmd = distros.ExecSudoCommand(ctx, sudoPassword,
-				"pacman -S --needed --noconfirm greetd")
-		} else {
-			installCmd = exec.CommandContext(ctx, "sudo", "pacman", "-S", "--needed", "--noconfirm", "greetd")
-		}
-
-	case distros.FamilyFedora:
-		if sudoPassword != "" {
-			installCmd = distros.ExecSudoCommand(ctx, sudoPassword,
-				"dnf install -y greetd")
-		} else {
-			installCmd = exec.CommandContext(ctx, "sudo", "dnf", "install", "-y", "greetd")
-		}
-
-	case distros.FamilySUSE:
-		if sudoPassword != "" {
-			installCmd = distros.ExecSudoCommand(ctx, sudoPassword,
-				"zypper install -y greetd")
-		} else {
-			installCmd = exec.CommandContext(ctx, "sudo", "zypper", "install", "-y", "greetd")
-		}
-
-	case distros.FamilyUbuntu:
-		if sudoPassword != "" {
-			installCmd = distros.ExecSudoCommand(ctx, sudoPassword,
-				"apt-get install -y greetd")
-		} else {
-			installCmd = exec.CommandContext(ctx, "sudo", "apt-get", "install", "-y", "greetd")
-		}
-
-	case distros.FamilyDebian:
-		if sudoPassword != "" {
-			installCmd = distros.ExecSudoCommand(ctx, sudoPassword,
-				"apt-get install -y greetd")
-		} else {
-			installCmd = exec.CommandContext(ctx, "sudo", "apt-get", "install", "-y", "greetd")
-		}
-
-	case distros.FamilyGentoo:
-		if sudoPassword != "" {
-			installCmd = distros.ExecSudoCommand(ctx, sudoPassword,
-				"emerge --ask n sys-apps/greetd")
-		} else {
-			installCmd = exec.CommandContext(ctx, "sudo", "emerge", "--ask", "n", "sys-apps/greetd")
-		}
-
-	case distros.FamilyNix:
-		return fmt.Errorf("on NixOS, please add greetd to your configuration.nix")
-
-	default:
-		return fmt.Errorf("unsupported distribution family for automatic greetd installation: %s", config.Family)
-	}
-
-	installCmd.Stdout = os.Stdout
-	installCmd.Stderr = os.Stderr
-
-	if err := installCmd.Run(); err != nil {
-		return fmt.Errorf("failed to install greetd: %w", err)
-	}
-
-	logFunc("✓ greetd installed successfully")
-	return nil
-}
-
-// IsGreeterPackaged returns true if dms-greeter was installed from a system package.
-func IsGreeterPackaged() bool {
-	if !utils.CommandExists("dms-greeter") {
-		return false
-	}
-	packagedPath := "/usr/share/quickshell/dms-greeter"
-	info, err := os.Stat(packagedPath)
-	return err == nil && info.IsDir()
-}
-
-// HasLegacyLocalGreeterWrapper returns true when a manually installed wrapper exists.
-func HasLegacyLocalGreeterWrapper() bool {
-	info, err := os.Stat("/usr/local/bin/dms-greeter")
-	return err == nil && !info.IsDir()
-}
-
-// TryInstallGreeterPackage attempts to install dms-greeter from the distro's official repo.
-func TryInstallGreeterPackage(logFunc func(string), sudoPassword string) bool {
-	osInfo, err := distros.GetOSInfo()
-	if err != nil {
-		return false
-	}
-	config, exists := distros.Registry[osInfo.Distribution.ID]
-	if !exists {
-		return false
-	}
-
-	if IsGreeterPackaged() {
-		logFunc("✓ dms-greeter package already installed")
-		return true
-	}
-
-	ctx := context.Background()
-	var installCmd *exec.Cmd
-	var failHint string
-
-	switch config.Family {
-	case distros.FamilyDebian:
-		obsSlug := getDebianOBSSlug(osInfo)
-		keyURL := fmt.Sprintf("https://download.opensuse.org/repositories/home:AvengeMedia:danklinux/%s/Release.key", obsSlug)
-		repoLine := fmt.Sprintf("deb [signed-by=/etc/apt/keyrings/danklinux.gpg] https://download.opensuse.org/repositories/home:/AvengeMedia:/danklinux/%s/ /", obsSlug)
-		failHint = fmt.Sprintf("⚠ dms-greeter install failed. Add OBS repo manually:\nsudo apt-get install -y gnupg\nsudo mkdir -p /etc/apt/keyrings\ncurl -fsSL %s | sudo gpg --dearmor -o /etc/apt/keyrings/danklinux.gpg\necho '%s' | sudo tee /etc/apt/sources.list.d/danklinux.list\nsudo apt update && sudo apt-get install -y dms-greeter", keyURL, repoLine)
-		logFunc(fmt.Sprintf("Adding DankLinux OBS repository (%s)...", obsSlug))
-		if _, err := exec.LookPath("gpg"); err != nil {
-			logFunc("Installing gnupg for OBS repository key import...")
-			installGPGCmd := exec.CommandContext(ctx, "sudo", "apt-get", "install", "-y", "gnupg")
-			installGPGCmd.Stdout = os.Stdout
-			installGPGCmd.Stderr = os.Stderr
-			if err := installGPGCmd.Run(); err != nil {
-				logFunc(fmt.Sprintf("⚠ Failed to install gnupg: %v", err))
-			}
-		}
-		mkdirCmd := exec.CommandContext(ctx, "sudo", "mkdir", "-p", "/etc/apt/keyrings")
-		mkdirCmd.Stdout = os.Stdout
-		mkdirCmd.Stderr = os.Stderr
-		mkdirCmd.Run()
-		addKeyCmd := exec.CommandContext(ctx, "bash", "-c",
-			fmt.Sprintf(`curl -fsSL %s | sudo gpg --dearmor -o /etc/apt/keyrings/danklinux.gpg`, keyURL))
-		addKeyCmd.Stdout = os.Stdout
-		addKeyCmd.Stderr = os.Stderr
-		addKeyCmd.Run()
-		addRepoCmd := exec.CommandContext(ctx, "bash", "-c",
-			fmt.Sprintf(`echo '%s' | sudo tee /etc/apt/sources.list.d/danklinux.list`, repoLine))
-		addRepoCmd.Stdout = os.Stdout
-		addRepoCmd.Stderr = os.Stderr
-		addRepoCmd.Run()
-		exec.CommandContext(ctx, "sudo", "apt-get", "update").Run()
-		installCmd = exec.CommandContext(ctx, "sudo", "apt-get", "install", "-y", "dms-greeter")
-	case distros.FamilySUSE:
-		repoURL := getOpenSUSEOBSRepoURL(osInfo)
-		failHint = fmt.Sprintf("⚠ dms-greeter install failed. Add OBS repo manually:\nsudo zypper addrepo %s\nsudo zypper refresh && sudo zypper install dms-greeter", repoURL)
-		logFunc("Adding DankLinux OBS repository...")
-		addRepoCmd := exec.CommandContext(ctx, "sudo", "zypper", "addrepo", repoURL)
-		addRepoCmd.Stdout = os.Stdout
-		addRepoCmd.Stderr = os.Stderr
-		addRepoCmd.Run()
-		exec.CommandContext(ctx, "sudo", "zypper", "refresh").Run()
-		installCmd = exec.CommandContext(ctx, "sudo", "zypper", "install", "-y", "dms-greeter")
-	case distros.FamilyUbuntu:
-		failHint = "⚠ dms-greeter install failed. Add PPA manually: sudo add-apt-repository ppa:avengemedia/danklinux && sudo apt-get update && sudo apt-get install -y dms-greeter"
-		logFunc("Enabling PPA ppa:avengemedia/danklinux...")
-		ppacmd := exec.CommandContext(ctx, "sudo", "add-apt-repository", "-y", "ppa:avengemedia/danklinux")
-		ppacmd.Stdout = os.Stdout
-		ppacmd.Stderr = os.Stderr
-		ppacmd.Run()
-		exec.CommandContext(ctx, "sudo", "apt-get", "update").Run()
-		installCmd = exec.CommandContext(ctx, "sudo", "apt-get", "install", "-y", "dms-greeter")
-	case distros.FamilyFedora:
-		failHint = "⚠ dms-greeter install failed. Enable COPR manually: sudo dnf copr enable avengemedia/danklinux && sudo dnf install dms-greeter"
-		logFunc("Enabling COPR avengemedia/danklinux...")
-		coprcmd := exec.CommandContext(ctx, "sudo", "dnf", "copr", "enable", "-y", "avengemedia/danklinux")
-		coprcmd.Stdout = os.Stdout
-		coprcmd.Stderr = os.Stderr
-		coprcmd.Run()
-		installCmd = exec.CommandContext(ctx, "sudo", "dnf", "install", "-y", "dms-greeter")
-	case distros.FamilyArch:
-		aurHelper := ""
-		for _, helper := range []string{"paru", "yay"} {
-			if _, err := exec.LookPath(helper); err == nil {
-				aurHelper = helper
-				break
-			}
-		}
-		if aurHelper == "" {
-			logFunc("⚠ No AUR helper found (paru/yay). Install greetd-dms-greeter-git from AUR: https://aur.archlinux.org/packages/greetd-dms-greeter-git")
-			return false
-		}
-		failHint = fmt.Sprintf("⚠ dms-greeter install failed. Install from AUR: %s -S greetd-dms-greeter-git", aurHelper)
-		installCmd = exec.CommandContext(ctx, aurHelper, "-S", "--noconfirm", "greetd-dms-greeter-git")
-	default:
-		return false
-	}
-
-	logFunc("Installing dms-greeter from official repository...")
-	installCmd.Stdout = os.Stdout
-	installCmd.Stderr = os.Stderr
-
-	if err := installCmd.Run(); err != nil {
-		logFunc(failHint)
-		return false
-	}
-
-	logFunc("✓ dms-greeter package installed")
-	return true
-}
-
-// CopyGreeterFiles installs the dms-greeter wrapper and sets up cache directory
-func CopyGreeterFiles(dmsPath, compositor string, logFunc func(string), sudoPassword string) error {
-	if IsGreeterPackaged() {
-		logFunc("✓ dms-greeter package already installed")
-	} else {
-		if dmsPath == "" {
-			return fmt.Errorf("dms path is required for manual dms-greeter wrapper installs")
-		}
-
-		assetsDir := filepath.Join(dmsPath, "Modules", "Greetd", "assets")
-		wrapperSrc := filepath.Join(assetsDir, "dms-greeter")
-
-		if _, err := os.Stat(wrapperSrc); os.IsNotExist(err) {
-			return fmt.Errorf("dms-greeter wrapper not found at %s", wrapperSrc)
-		}
-
-		wrapperDst := "/usr/local/bin/dms-greeter"
-		action := "Installed"
-		if info, err := os.Stat(wrapperDst); err == nil && !info.IsDir() {
-			action = "Updated"
-		}
-		if err := runSudoCmd(sudoPassword, "cp", wrapperSrc, wrapperDst); err != nil {
-			return fmt.Errorf("failed to copy dms-greeter wrapper: %w", err)
-		}
-		logFunc(fmt.Sprintf("✓ %s dms-greeter wrapper at %s", action, wrapperDst))
-
-		if err := runSudoCmd(sudoPassword, "chmod", "+x", wrapperDst); err != nil {
-			return fmt.Errorf("failed to make wrapper executable: %w", err)
-		}
-
-		osInfo, err := distros.GetOSInfo()
-		if err == nil {
-			if config, exists := distros.Registry[osInfo.Distribution.ID]; exists && (config.Family == distros.FamilyFedora || config.Family == distros.FamilySUSE) {
-				if err := runSudoCmd(sudoPassword, "semanage", "fcontext", "-a", "-t", "bin_t", wrapperDst); err != nil {
-					logFunc(fmt.Sprintf("⚠ Warning: Failed to set SELinux fcontext: %v", err))
-				} else {
-					logFunc("✓ Set SELinux fcontext for dms-greeter")
-				}
-
-				if err := runSudoCmd(sudoPassword, "restorecon", "-v", wrapperDst); err != nil {
-					logFunc(fmt.Sprintf("⚠ Warning: Failed to restore SELinux context: %v", err))
-				} else {
-					logFunc("✓ Restored SELinux context for dms-greeter")
-				}
-			}
-		}
-	}
-
-	if err := EnsureGreeterCacheDir(logFunc, sudoPassword); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-// EnsureGreeterCacheDir creates /var/cache/dms-greeter with correct ownership if it does not exist.
-// It is safe to call multiple times (idempotent) and will repair ownership/mode
-// when the directory already exists with stale permissions.
-func EnsureGreeterCacheDir(logFunc func(string), sudoPassword string) error {
-	cacheDir := GreeterCacheDir
-	created := false
-	if info, err := os.Stat(cacheDir); err != nil {
-		if !os.IsNotExist(err) {
-			return fmt.Errorf("failed to stat cache directory: %w", err)
-		}
-		if err := runSudoCmd(sudoPassword, "mkdir", "-p", cacheDir); err != nil {
-			return fmt.Errorf("failed to create cache directory: %w", err)
-		}
-		created = true
-	} else if !info.IsDir() {
-		return fmt.Errorf("cache path exists but is not a directory: %s", cacheDir)
-	}
-
-	group := DetectGreeterGroup()
-	daemonUser := DetectGreeterUser()
-	preferredOwner := fmt.Sprintf("%s:%s", daemonUser, group)
-	owner := preferredOwner
-	if err := runSudoCmd(sudoPassword, "chown", owner, cacheDir); err != nil {
-		// Some setups may not have a matching daemon user at this moment; fall back
-		// to root:<group> while still allowing group-writable greeter runtime access.
-		fallbackOwner := fmt.Sprintf("root:%s", group)
-		if fallbackErr := runSudoCmd(sudoPassword, "chown", fallbackOwner, cacheDir); fallbackErr != nil {
-			return fmt.Errorf("failed to set cache directory owner (preferred %s: %v; fallback %s: %w)", preferredOwner, err, fallbackOwner, fallbackErr)
-		}
-		owner = fallbackOwner
-	}
-
-	if err := runSudoCmd(sudoPassword, "chmod", "2770", cacheDir); err != nil {
-		return fmt.Errorf("failed to set cache directory permissions: %w", err)
-	}
-
-	runtimeDirs := []string{
-		filepath.Join(cacheDir, ".local"),
-		filepath.Join(cacheDir, ".local", "state"),
-		filepath.Join(cacheDir, ".local", "share"),
-		filepath.Join(cacheDir, ".cache"),
-	}
-	for _, dir := range runtimeDirs {
-		if err := runSudoCmd(sudoPassword, "mkdir", "-p", dir); err != nil {
-			return fmt.Errorf("failed to create cache runtime directory %s: %w", dir, err)
-		}
-		if err := runSudoCmd(sudoPassword, "chown", owner, dir); err != nil {
-			return fmt.Errorf("failed to set owner for cache runtime directory %s: %w", dir, err)
-		}
-		if err := runSudoCmd(sudoPassword, "chmod", "2770", dir); err != nil {
-			return fmt.Errorf("failed to set permissions for cache runtime directory %s: %w", dir, err)
-		}
-	}
-
-	legacyMemoryPath := filepath.Join(cacheDir, "memory.json")
-	stateMemoryPath := filepath.Join(cacheDir, ".local", "state", "memory.json")
-	if err := ensureGreeterMemoryCompatLink(logFunc, sudoPassword, legacyMemoryPath, stateMemoryPath); err != nil {
-		return err
-	}
-
-	if isSELinuxEnforcing() && utils.CommandExists("restorecon") {
-		if err := runSudoCmd(sudoPassword, "restorecon", "-Rv", cacheDir); err != nil {
-			logFunc(fmt.Sprintf("⚠ Warning: Failed to restore SELinux context for %s: %v", cacheDir, err))
-		}
-	}
-
-	if created {
-		logFunc(fmt.Sprintf("✓ Created cache directory %s (owner: %s, mode: 2770)", cacheDir, owner))
-	} else {
-		logFunc(fmt.Sprintf("✓ Ensured cache directory %s permissions (owner: %s, mode: 2770)", cacheDir, owner))
-	}
-	return nil
-}
-
-func isSELinuxEnforcing() bool {
-	data, err := os.ReadFile("/sys/fs/selinux/enforce")
-	if err != nil {
-		return false
-	}
-	return strings.TrimSpace(string(data)) == "1"
-}
-
-func ensureGreeterMemoryCompatLink(logFunc func(string), sudoPassword, legacyPath, statePath string) error {
-	info, err := os.Lstat(legacyPath)
-	if err == nil && info.Mode().IsRegular() {
-		if _, stateErr := os.Stat(statePath); os.IsNotExist(stateErr) {
-			if copyErr := runSudoCmd(sudoPassword, "cp", "-f", legacyPath, statePath); copyErr != nil {
-				logFunc(fmt.Sprintf("⚠ Warning: Failed to migrate legacy greeter memory file to %s: %v", statePath, copyErr))
-			}
-		}
-	}
-
-	if err := runSudoCmd(sudoPassword, "ln", "-sfn", statePath, legacyPath); err != nil {
-		return fmt.Errorf("failed to create greeter memory compatibility symlink %s -> %s: %w", legacyPath, statePath, err)
-	}
-
-	return nil
-}
-
-// IsAppArmorEnabled reports whether AppArmor is active on the running kernel.
-func IsAppArmorEnabled() bool {
-	data, err := os.ReadFile("/sys/module/apparmor/parameters/enabled")
-	if err != nil {
-		return false
-	}
-	return strings.HasPrefix(strings.TrimSpace(strings.ToLower(string(data))), "y")
-}
-
-// InstallAppArmorProfile installs the bundled AppArmor profile and reloads it. No-op on NixOS or non-AppArmor systems.
-func InstallAppArmorProfile(logFunc func(string), sudoPassword string) error {
-	if IsNixOS() {
-		logFunc("  ℹ Skipping AppArmor profile on NixOS (manage via security.apparmor.policies)")
-		return nil
-	}
-
-	if !IsAppArmorEnabled() {
-		return nil
-	}
-
-	if err := runSudoCmd(sudoPassword, "mkdir", "-p", "/etc/apparmor.d"); err != nil {
-		return fmt.Errorf("failed to create /etc/apparmor.d: %w", err)
-	}
-
-	tmp, err := os.CreateTemp("", "dms-apparmor-*")
-	if err != nil {
-		return fmt.Errorf("failed to create temp file for AppArmor profile: %w", err)
-	}
-	tmpPath := tmp.Name()
-	defer os.Remove(tmpPath)
-
-	if _, err := tmp.Write(appArmorProfileData); err != nil {
-		tmp.Close()
-		return fmt.Errorf("failed to write AppArmor profile: %w", err)
-	}
-	tmp.Close()
-
-	if err := runSudoCmd(sudoPassword, "cp", tmpPath, appArmorProfileDest); err != nil {
-		return fmt.Errorf("failed to install AppArmor profile to %s: %w", appArmorProfileDest, err)
-	}
-	if err := runSudoCmd(sudoPassword, "chmod", "644", appArmorProfileDest); err != nil {
-		return fmt.Errorf("failed to set AppArmor profile permissions: %w", err)
-	}
-
-	if utils.CommandExists("apparmor_parser") {
-		if err := runSudoCmd(sudoPassword, "apparmor_parser", "-r", appArmorProfileDest); err != nil {
-			logFunc(fmt.Sprintf("  ⚠ AppArmor profile installed but reload failed: %v", err))
-			logFunc("    Run: sudo apparmor_parser -r " + appArmorProfileDest)
-		} else {
-			logFunc("  ✓ AppArmor profile installed and loaded (complain mode)")
-		}
-	} else {
-		logFunc("  ✓ AppArmor profile installed at " + appArmorProfileDest)
-		logFunc("    apparmor_parser not found — profile will be loaded on next boot")
-	}
-
-	return nil
-}
-
-// UninstallAppArmorProfile removes the DMS AppArmor profile and reloads AppArmor.
-// It is a no-op when AppArmor is not active or the profile does not exist.
-func UninstallAppArmorProfile(logFunc func(string), sudoPassword string) error {
-	if IsNixOS() {
-		return nil
-	}
-	if _, err := os.Stat("/sys/module/apparmor"); os.IsNotExist(err) {
-		return nil
-	}
-	if _, err := os.Stat(appArmorProfileDest); os.IsNotExist(err) {
-		return nil
-	}
-
-	if utils.CommandExists("apparmor_parser") {
-		_ = runSudoCmd(sudoPassword, "apparmor_parser", "--remove", appArmorProfileDest)
-	}
-	if err := runSudoCmd(sudoPassword, "rm", "-f", appArmorProfileDest); err != nil {
-		return fmt.Errorf("failed to remove AppArmor profile: %w", err)
-	}
-	logFunc("  ✓ Removed DMS AppArmor profile")
-	return nil
-}
-
-// EnsureACLInstalled installs the acl package (setfacl/getfacl) if not already present
-func EnsureACLInstalled(logFunc func(string), sudoPassword string) error {
-	if utils.CommandExists("setfacl") {
-		return nil
-	}
-
-	logFunc("setfacl not found – installing acl package...")
-
-	osInfo, err := distros.GetOSInfo()
-	if err != nil {
-		return fmt.Errorf("failed to detect OS: %w", err)
-	}
-
-	config, exists := distros.Registry[osInfo.Distribution.ID]
-	if !exists {
-		return fmt.Errorf("unsupported distribution for automatic acl installation: %s", osInfo.Distribution.ID)
-	}
-
-	ctx := context.Background()
-	var installCmd *exec.Cmd
-
-	switch config.Family {
-	case distros.FamilyArch:
-		if sudoPassword != "" {
-			installCmd = distros.ExecSudoCommand(ctx, sudoPassword, "pacman -S --needed --noconfirm acl")
-		} else {
-			installCmd = exec.CommandContext(ctx, "sudo", "pacman", "-S", "--needed", "--noconfirm", "acl")
-		}
-
-	case distros.FamilyFedora:
-		if sudoPassword != "" {
-			installCmd = distros.ExecSudoCommand(ctx, sudoPassword, "dnf install -y acl")
-		} else {
-			installCmd = exec.CommandContext(ctx, "sudo", "dnf", "install", "-y", "acl")
-		}
-
-	case distros.FamilySUSE:
-		if sudoPassword != "" {
-			installCmd = distros.ExecSudoCommand(ctx, sudoPassword, "zypper install -y acl")
-		} else {
-			installCmd = exec.CommandContext(ctx, "sudo", "zypper", "install", "-y", "acl")
-		}
-
-	case distros.FamilyUbuntu:
-		if sudoPassword != "" {
-			installCmd = distros.ExecSudoCommand(ctx, sudoPassword, "apt-get install -y acl")
-		} else {
-			installCmd = exec.CommandContext(ctx, "sudo", "apt-get", "install", "-y", "acl")
-		}
-
-	case distros.FamilyDebian:
-		if sudoPassword != "" {
-			installCmd = distros.ExecSudoCommand(ctx, sudoPassword, "apt-get install -y acl")
-		} else {
-			installCmd = exec.CommandContext(ctx, "sudo", "apt-get", "install", "-y", "acl")
-		}
-
-	case distros.FamilyGentoo:
-		if sudoPassword != "" {
-			installCmd = distros.ExecSudoCommand(ctx, sudoPassword, "emerge --ask n sys-fs/acl")
-		} else {
-			installCmd = exec.CommandContext(ctx, "sudo", "emerge", "--ask", "n", "sys-fs/acl")
-		}
-
-	case distros.FamilyNix:
-		return fmt.Errorf("on NixOS, please add pkgs.acl to your configuration.nix")
-
-	default:
-		return fmt.Errorf("unsupported distribution family for automatic acl installation: %s", config.Family)
-	}
-
-	installCmd.Stdout = os.Stdout
-	installCmd.Stderr = os.Stderr
-	if err := installCmd.Run(); err != nil {
-		return fmt.Errorf("failed to install acl: %w", err)
-	}
-
-	logFunc("✓ acl package installed")
-	return nil
-}
-
-// SetupParentDirectoryACLs sets ACLs on parent directories to allow traversal
-func SetupParentDirectoryACLs(logFunc func(string), sudoPassword string) error {
-	if err := EnsureACLInstalled(logFunc, sudoPassword); err != nil {
-		logFunc(fmt.Sprintf("⚠ Warning: could not install acl package: %v", err))
-		logFunc("  ACL permissions will be skipped; theme sync may not work correctly.")
-		return nil
-	}
-	if !utils.CommandExists("setfacl") {
-		logFunc("⚠ Warning: setfacl still not available after install attempt; skipping ACL setup.")
-		return nil
-	}
-
-	homeDir, err := os.UserHomeDir()
-	if err != nil {
-		return fmt.Errorf("failed to get user home directory: %w", err)
-	}
-
-	parentDirs := []struct {
-		path string
-		desc string
-	}{
-		{homeDir, "home directory"},
-		{filepath.Join(homeDir, ".config"), ".config directory"},
-		{filepath.Join(homeDir, ".local"), ".local directory"},
-		{filepath.Join(homeDir, ".cache"), ".cache directory"},
-		{filepath.Join(homeDir, ".local", "state"), ".local/state directory"},
-		{filepath.Join(homeDir, ".local", "share"), ".local/share directory"},
-	}
-
-	group := DetectGreeterGroup()
-
-	logFunc("\nSetting up parent directory ACLs for greeter user access...")
-
-	for _, dir := range parentDirs {
-		if _, err := os.Stat(dir.path); os.IsNotExist(err) {
-			if err := os.MkdirAll(dir.path, 0o755); err != nil {
-				logFunc(fmt.Sprintf("⚠ Warning: Could not create %s: %v", dir.desc, err))
-				continue
-			}
-		}
-
-		// Group ACL covers daemon users regardless of username (e.g. greetd ≠ greeter on Fedora).
-		if err := runSudoCmd(sudoPassword, "setfacl", "-m", fmt.Sprintf("g:%s:rX", group), dir.path); err != nil {
-			logFunc(fmt.Sprintf("⚠ Warning: Failed to set ACL on %s: %v", dir.desc, err))
-			logFunc(fmt.Sprintf("  You may need to run manually: setfacl -m g:%s:rX %s", group, dir.path))
-			continue
-		}
-
-		logFunc(fmt.Sprintf("✓ Set ACL on %s", dir.desc))
-	}
-
-	return nil
-}
-
-// RemediateStaleACLs removes user-based ACLs left by older binary versions. Best-effort.
-func RemediateStaleACLs(logFunc func(string), sudoPassword string) {
-	if !utils.CommandExists("setfacl") {
-		return
-	}
-
-	homeDir, err := os.UserHomeDir()
-	if err != nil {
-		return
-	}
-
-	passwdData, err := os.ReadFile("/etc/passwd")
-	if err != nil {
-		return
-	}
-
-	dirs := []string{
-		homeDir,
-		filepath.Join(homeDir, ".config"),
-		filepath.Join(homeDir, ".config", "DankMaterialShell"),
-		filepath.Join(homeDir, ".cache"),
-		filepath.Join(homeDir, ".cache", "DankMaterialShell"),
-		filepath.Join(homeDir, ".local"),
-		filepath.Join(homeDir, ".local", "state"),
-		filepath.Join(homeDir, ".local", "share"),
-	}
-
-	passwdContent := string(passwdData)
-	staleUsers := []string{"greeter", "greetd", "_greeter"}
-	existingUsers := make([]string, 0, len(staleUsers))
-	for _, user := range staleUsers {
-		if hasPasswdUser(passwdContent, user) {
-			existingUsers = append(existingUsers, user)
-		}
-	}
-	if len(existingUsers) == 0 {
-		return
-	}
-
-	cleaned := false
-	for _, dir := range dirs {
-		if _, err := os.Stat(dir); err != nil {
-			continue
-		}
-		for _, user := range existingUsers {
-			_ = runSudoCmd(sudoPassword, "setfacl", "-x", fmt.Sprintf("u:%s", user), dir)
-			cleaned = true
-		}
-	}
-	if cleaned {
-		logFunc("✓ Cleaned up stale user-based ACLs from previous versions")
-	}
-}
-
-// RemediateStaleAppArmor removes any AppArmor profile installed by an older binary on
-// systems where AppArmor is not active.
-func RemediateStaleAppArmor(logFunc func(string), sudoPassword string) {
-	if IsAppArmorEnabled() {
-		return
-	}
-	if _, err := os.Stat(appArmorProfileDest); os.IsNotExist(err) {
-		return
-	}
-	logFunc("ℹ Removing stale AppArmor profile (AppArmor is not active on this system)")
-	_ = UninstallAppArmorProfile(logFunc, sudoPassword)
-}
-
-func SetupDMSGroup(logFunc func(string), sudoPassword string) error {
-	homeDir, err := os.UserHomeDir()
-	if err != nil {
-		return fmt.Errorf("failed to get user home directory: %w", err)
-	}
-
-	currentUser := os.Getenv("USER")
-	if currentUser == "" {
-		currentUser = os.Getenv("LOGNAME")
-	}
-	if currentUser == "" {
-		return fmt.Errorf("failed to determine current user")
-	}
-
-	group := DetectGreeterGroup()
-
-	// Create the group if it doesn't exist yet (e.g. before greetd package is installed).
-	if !utils.HasGroup(group) {
-		if err := runSudoCmd(sudoPassword, "groupadd", "-r", group); err != nil {
-			return fmt.Errorf("failed to create %s group: %w", group, err)
-		}
-		logFunc(fmt.Sprintf("✓ Created system group %s", group))
-	}
-
-	groupsCmd := exec.Command("groups", currentUser)
-	groupsOutput, err := groupsCmd.Output()
-	if err == nil && strings.Contains(string(groupsOutput), group) {
-		logFunc(fmt.Sprintf("✓ %s is already in %s group", currentUser, group))
-	} else {
-		if err := runSudoCmd(sudoPassword, "usermod", "-aG", group, currentUser); err != nil {
-			return fmt.Errorf("failed to add %s to %s group: %w", currentUser, group, err)
-		}
-		logFunc(fmt.Sprintf("✓ Added %s to %s group (logout/login required for changes to take effect)", currentUser, group))
-	}
-
-	// Also add the daemon user (e.g. greetd on Fedora) so group ACLs apply to the running process.
-	daemonUser := DetectGreeterUser()
-	if daemonUser != currentUser {
-		daemonGroupsCmd := exec.Command("groups", daemonUser)
-		daemonGroupsOutput, daemonGroupsErr := daemonGroupsCmd.Output()
-		if daemonGroupsErr == nil {
-			if strings.Contains(string(daemonGroupsOutput), group) {
-				logFunc(fmt.Sprintf("✓ Greeter daemon user %s is already in %s group", daemonUser, group))
-			} else {
-				if err := runSudoCmd(sudoPassword, "usermod", "-aG", group, daemonUser); err != nil {
-					logFunc(fmt.Sprintf("⚠ Warning: could not add %s to %s group: %v", daemonUser, group, err))
-				} else {
-					logFunc(fmt.Sprintf("✓ Added greeter daemon user %s to %s group", daemonUser, group))
-				}
-			}
-		}
-	}
-
-	configDirs := []struct {
-		path string
-		desc string
-	}{
-		{filepath.Join(homeDir, ".config", "DankMaterialShell"), "DankMaterialShell config"},
-		{filepath.Join(homeDir, ".local", "state", "DankMaterialShell"), "DankMaterialShell state"},
-		{filepath.Join(homeDir, ".cache", "DankMaterialShell"), "DankMaterialShell cache"},
-		{filepath.Join(homeDir, ".cache", "quickshell"), "quickshell cache"},
-		{filepath.Join(homeDir, ".config", "quickshell"), "quickshell config"},
-		{filepath.Join(homeDir, ".local", "share", "wayland-sessions"), "wayland sessions"},
-		{filepath.Join(homeDir, ".local", "share", "xsessions"), "xsessions"},
-	}
-
-	for _, dir := range configDirs {
-		if _, err := os.Stat(dir.path); os.IsNotExist(err) {
-			if err := os.MkdirAll(dir.path, 0o755); err != nil {
-				logFunc(fmt.Sprintf("⚠ Warning: Could not create %s: %v", dir.path, err))
-				continue
-			}
-		}
-
-		if err := runSudoCmd(sudoPassword, "chgrp", "-R", group, dir.path); err != nil {
-			logFunc(fmt.Sprintf("⚠ Warning: Failed to set group for %s: %v", dir.desc, err))
-			continue
-		}
-
-		if err := runSudoCmd(sudoPassword, "chmod", "-R", "g+rX", dir.path); err != nil {
-			logFunc(fmt.Sprintf("⚠ Warning: Failed to set permissions for %s: %v", dir.desc, err))
-			continue
-		}
-
-		logFunc(fmt.Sprintf("✓ Set group permissions for %s", dir.desc))
-	}
-
-	if err := SetupParentDirectoryACLs(logFunc, sudoPassword); err != nil {
-		return fmt.Errorf("failed to setup parent directory ACLs: %w", err)
-	}
-
-	return nil
-}
-
-type GreeterColorSyncInfo struct {
-	SourcePath                   string
-	ThemeName                    string
-	UsesDynamicWallpaperOverride bool
-}
-
-type greeterThemeSyncSettings struct {
-	CurrentThemeName     string `json:"currentThemeName"`
-	GreeterWallpaperPath string `json:"greeterWallpaperPath"`
-	MatugenScheme        string `json:"matugenScheme"`
-	IconTheme            string `json:"iconTheme"`
-}
-
-type greeterThemeSyncSession struct {
-	IsLightMode bool `json:"isLightMode"`
-}
-
-type greeterThemeSyncState struct {
-	ThemeName                    string
-	GreeterWallpaperPath         string
-	ResolvedGreeterWallpaperPath string
-	MatugenScheme                string
-	IconTheme                    string
-	IsLightMode                  bool
-	UsesDynamicWallpaperOverride bool
-}
-
-func defaultGreeterColorsSource(homeDir string) string {
-	return filepath.Join(homeDir, ".cache", "DankMaterialShell", "dms-colors.json")
-}
-
-func greeterOverrideColorsStateDir(homeDir string) string {
-	return filepath.Join(homeDir, ".cache", "DankMaterialShell", "greeter-colors")
-}
-
-func greeterOverrideColorsSource(homeDir string) string {
-	return filepath.Join(greeterOverrideColorsStateDir(homeDir), "dms-colors.json")
-}
-
-func readOptionalJSONFile(path string, dst any) error {
-	data, err := os.ReadFile(path)
-	if err != nil {
-		if os.IsNotExist(err) {
-			return nil
-		}
-		return err
-	}
-	if strings.TrimSpace(string(data)) == "" {
-		return nil
-	}
-	return json.Unmarshal(data, dst)
-}
-
-func readGreeterThemeSyncSettings(homeDir string) (greeterThemeSyncSettings, error) {
-	settings := greeterThemeSyncSettings{
-		CurrentThemeName: "purple",
-		MatugenScheme:    "scheme-tonal-spot",
-		IconTheme:        "System Default",
-	}
-	settingsPath := filepath.Join(homeDir, ".config", "DankMaterialShell", "settings.json")
-	if err := readOptionalJSONFile(settingsPath, &settings); err != nil {
-		return greeterThemeSyncSettings{}, fmt.Errorf("failed to parse settings at %s: %w", settingsPath, err)
-	}
-	return settings, nil
-}
-
-func readGreeterThemeSyncSession(homeDir string) (greeterThemeSyncSession, error) {
-	session := greeterThemeSyncSession{}
-	sessionPath := filepath.Join(homeDir, ".local", "state", "DankMaterialShell", "session.json")
-	if err := readOptionalJSONFile(sessionPath, &session); err != nil {
-		return greeterThemeSyncSession{}, fmt.Errorf("failed to parse session at %s: %w", sessionPath, err)
-	}
-	return session, nil
-}
-
-func resolveGreeterThemeSyncState(homeDir string) (greeterThemeSyncState, error) {
-	settings, err := readGreeterThemeSyncSettings(homeDir)
-	if err != nil {
-		return greeterThemeSyncState{}, err
-	}
-	session, err := readGreeterThemeSyncSession(homeDir)
-	if err != nil {
-		return greeterThemeSyncState{}, err
-	}
-
-	resolvedWallpaperPath := ""
-	if settings.GreeterWallpaperPath != "" {
-		resolvedWallpaperPath = settings.GreeterWallpaperPath
-		if !filepath.IsAbs(resolvedWallpaperPath) {
-			resolvedWallpaperPath = filepath.Join(homeDir, resolvedWallpaperPath)
-		}
-	}
-
-	usesDynamicWallpaperOverride := strings.EqualFold(strings.TrimSpace(settings.CurrentThemeName), "dynamic") && resolvedWallpaperPath != ""
-
-	return greeterThemeSyncState{
-		ThemeName:                    settings.CurrentThemeName,
-		GreeterWallpaperPath:         settings.GreeterWallpaperPath,
-		ResolvedGreeterWallpaperPath: resolvedWallpaperPath,
-		MatugenScheme:                settings.MatugenScheme,
-		IconTheme:                    settings.IconTheme,
-		IsLightMode:                  session.IsLightMode,
-		UsesDynamicWallpaperOverride: usesDynamicWallpaperOverride,
-	}, nil
-}
-
-func (s greeterThemeSyncState) effectiveColorsSource(homeDir string) string {
-	if s.UsesDynamicWallpaperOverride {
-		return greeterOverrideColorsSource(homeDir)
-	}
-	return defaultGreeterColorsSource(homeDir)
-}
-
-func ResolveGreeterColorSyncInfo(homeDir string) (GreeterColorSyncInfo, error) {
-	state, err := resolveGreeterThemeSyncState(homeDir)
-	if err != nil {
-		return GreeterColorSyncInfo{}, err
-	}
-	return GreeterColorSyncInfo{
-		SourcePath:                   state.effectiveColorsSource(homeDir),
-		ThemeName:                    state.ThemeName,
-		UsesDynamicWallpaperOverride: state.UsesDynamicWallpaperOverride,
-	}, nil
-}
-
-func ensureGreeterSyncSourceFile(path string) error {
-	sourceDir := filepath.Dir(path)
-	if err := os.MkdirAll(sourceDir, 0o755); err != nil {
-		return fmt.Errorf("failed to create source directory %s: %w", sourceDir, err)
-	}
-
-	if _, err := os.Stat(path); os.IsNotExist(err) {
-		if err := os.WriteFile(path, []byte("{}"), 0o644); err != nil {
-			return fmt.Errorf("failed to create source file %s: %w", path, err)
-		}
-	} else if err != nil {
-		return fmt.Errorf("failed to inspect source file %s: %w", path, err)
-	}
-
-	return nil
-}
-
-func syncGreeterDynamicOverrideColors(dmsPath, homeDir string, state greeterThemeSyncState, logFunc func(string)) error {
-	if !state.UsesDynamicWallpaperOverride {
-		return nil
-	}
-
-	st, err := os.Stat(state.ResolvedGreeterWallpaperPath)
-	if err != nil {
-		return fmt.Errorf("configured greeter wallpaper not found at %s: %w", state.ResolvedGreeterWallpaperPath, err)
-	}
-	if st.IsDir() {
-		return fmt.Errorf("configured greeter wallpaper path points to a directory: %s", state.ResolvedGreeterWallpaperPath)
-	}
-
-	mode := matugen.ColorModeDark
-	if state.IsLightMode {
-		mode = matugen.ColorModeLight
-	}
-
-	opts := matugen.Options{
-		StateDir:         greeterOverrideColorsStateDir(homeDir),
-		ShellDir:         dmsPath,
-		ConfigDir:        filepath.Join(homeDir, ".config"),
-		Kind:             "image",
-		Value:            state.ResolvedGreeterWallpaperPath,
-		Mode:             mode,
-		IconTheme:        state.IconTheme,
-		MatugenType:      state.MatugenScheme,
-		RunUserTemplates: false,
-		ColorsOnly:       true,
-	}
-
-	err = matugen.Run(opts)
-	switch {
-	case errors.Is(err, matugen.ErrNoChanges):
-		logFunc("✓ Greeter dynamic override colors already up to date")
-		return nil
-	case err != nil:
-		return fmt.Errorf("failed to generate greeter dynamic colors from wallpaper override: %w", err)
-	default:
-		logFunc("✓ Generated greeter dynamic colors from wallpaper override")
-		return nil
-	}
-}
-
-func syncGreeterColorSource(homeDir, cacheDir string, state greeterThemeSyncState, logFunc func(string), sudoPassword string) error {
-	source := state.effectiveColorsSource(homeDir)
-	if !state.UsesDynamicWallpaperOverride {
-		if err := ensureGreeterSyncSourceFile(source); err != nil {
-			return err
-		}
-	} else if _, err := os.Stat(source); err != nil {
-		return fmt.Errorf("expected generated greeter colors at %s: %w", source, err)
-	}
-
-	target := filepath.Join(cacheDir, "colors.json")
-	_ = runSudoCmd(sudoPassword, "rm", "-f", target)
-	if err := runSudoCmd(sudoPassword, "ln", "-sf", source, target); err != nil {
-		return fmt.Errorf("failed to create symlink for wallpaper based theming (%s -> %s): %w", target, source, err)
-	}
-
-	if state.UsesDynamicWallpaperOverride {
-		logFunc("✓ Synced wallpaper based theming (greeter wallpaper override)")
-	} else {
-		logFunc("✓ Synced wallpaper based theming")
-	}
-
-	return nil
-}
-
-func SyncDMSConfigs(dmsPath, compositor string, logFunc func(string), sudoPassword string) error {
-	homeDir, err := os.UserHomeDir()
-	if err != nil {
-		return fmt.Errorf("failed to get user home directory: %w", err)
-	}
-
-	cacheDir := GreeterCacheDir
-
-	symlinks := []struct {
-		source string
-		target string
-		desc   string
-	}{
-		{
-			source: filepath.Join(homeDir, ".config", "DankMaterialShell", "settings.json"),
-			target: filepath.Join(cacheDir, "settings.json"),
-			desc:   "core settings (theme, clock formats, etc)",
-		},
-		{
-			source: filepath.Join(homeDir, ".local", "state", "DankMaterialShell", "session.json"),
-			target: filepath.Join(cacheDir, "session.json"),
-			desc:   "state (wallpaper configuration)",
-		},
-	}
-
-	for _, link := range symlinks {
-		sourceDir := filepath.Dir(link.source)
-		if _, err := os.Stat(sourceDir); os.IsNotExist(err) {
-			if err := os.MkdirAll(sourceDir, 0o755); err != nil {
-				return fmt.Errorf("failed to create source directory %s for %s: %w", sourceDir, link.desc, err)
-			}
-		}
-
-		if _, err := os.Stat(link.source); os.IsNotExist(err) {
-			if err := os.WriteFile(link.source, []byte("{}"), 0o644); err != nil {
-				return fmt.Errorf("failed to create source file %s for %s: %w", link.source, link.desc, err)
-			}
-		}
-
-		_ = runSudoCmd(sudoPassword, "rm", "-f", link.target)
-
-		if err := runSudoCmd(sudoPassword, "ln", "-sf", link.source, link.target); err != nil {
-			return fmt.Errorf("failed to create symlink for %s (%s -> %s): %w", link.desc, link.target, link.source, err)
-		}
-
-		logFunc(fmt.Sprintf("✓ Synced %s", link.desc))
-	}
-
-	state, err := resolveGreeterThemeSyncState(homeDir)
-	if err != nil {
-		return fmt.Errorf("failed to resolve greeter color source: %w", err)
-	}
-
-	if err := syncGreeterDynamicOverrideColors(dmsPath, homeDir, state, logFunc); err != nil {
-		return err
-	}
-
-	if err := syncGreeterColorSource(homeDir, cacheDir, state, logFunc, sudoPassword); err != nil {
-		return err
-	}
-
-	if err := syncGreeterWallpaperOverride(cacheDir, logFunc, sudoPassword, state); err != nil {
-		return fmt.Errorf("greeter wallpaper override sync failed: %w", err)
-	}
-
-	if strings.ToLower(compositor) != "niri" {
-		return nil
-	}
-
-	if err := syncNiriGreeterConfig(logFunc, sudoPassword); err != nil {
-		logFunc(fmt.Sprintf("⚠ Warning: Failed to sync niri greeter config: %v", err))
-	}
-
-	return nil
-}
-
-func syncGreeterWallpaperOverride(cacheDir string, logFunc func(string), sudoPassword string, state greeterThemeSyncState) error {
-	destPath := filepath.Join(cacheDir, "greeter_wallpaper_override.jpg")
-	if state.ResolvedGreeterWallpaperPath == "" {
-		if err := runSudoCmd(sudoPassword, "rm", "-f", destPath); err != nil {
-			return fmt.Errorf("failed to clear override file %s: %w", destPath, err)
-		}
-		logFunc("✓ Cleared greeter wallpaper override")
-		return nil
-	}
-	if err := runSudoCmd(sudoPassword, "rm", "-f", destPath); err != nil {
-		return fmt.Errorf("failed to remove old override file %s: %w", destPath, err)
-	}
-	src := state.ResolvedGreeterWallpaperPath
-	st, err := os.Stat(src)
-	if err != nil {
-		return fmt.Errorf("configured greeter wallpaper not found at %s: %w", src, err)
-	}
-	if st.IsDir() {
-		return fmt.Errorf("configured greeter wallpaper path points to a directory: %s", src)
-	}
-	if err := runSudoCmd(sudoPassword, "cp", src, destPath); err != nil {
-		return fmt.Errorf("failed to copy override wallpaper to %s: %w", destPath, err)
-	}
-	greeterGroup := DetectGreeterGroup()
-	daemonUser := DetectGreeterUser()
-	if err := runSudoCmd(sudoPassword, "chown", daemonUser+":"+greeterGroup, destPath); err != nil {
-		if fallbackErr := runSudoCmd(sudoPassword, "chown", "root:"+greeterGroup, destPath); fallbackErr != nil {
-			return fmt.Errorf("failed to set override ownership on %s: %w", destPath, err)
-		}
-	}
-	if err := runSudoCmd(sudoPassword, "chmod", "644", destPath); err != nil {
-		return fmt.Errorf("failed to set override permissions on %s: %w", destPath, err)
-	}
-	logFunc("✓ Synced greeter wallpaper override")
-	return nil
-}
-
-type niriGreeterSync struct {
-	processed   map[string]bool
-	nodes       []*document.Node
-	inputCount  int
-	outputCount int
-	cursorCount int
-	debugCount  int
-	cursorNode  *document.Node
-	inputNode   *document.Node
-	outputNodes map[string]*document.Node
-}
-
-func syncNiriGreeterConfig(logFunc func(string), sudoPassword string) error {
-	configDir, err := os.UserConfigDir()
-	if err != nil {
-		return fmt.Errorf("failed to resolve user config directory: %w", err)
-	}
-
-	configPath := filepath.Join(configDir, "niri", "config.kdl")
-	if _, err := os.Stat(configPath); os.IsNotExist(err) {
-		logFunc("ℹ Niri config not found; skipping greeter niri sync")
-		return nil
-	} else if err != nil {
-		return fmt.Errorf("failed to stat niri config: %w", err)
-	}
-
-	extractor := &niriGreeterSync{
-		processed:   make(map[string]bool),
-		outputNodes: make(map[string]*document.Node),
-	}
-
-	if err := extractor.processFile(configPath); err != nil {
-		return err
-	}
-
-	if len(extractor.nodes) == 0 {
-		logFunc("ℹ No niri input/output sections found; skipping greeter niri sync")
-		return nil
-	}
-
-	content := extractor.render()
-	if strings.TrimSpace(content) == "" {
-		logFunc("ℹ No niri input/output content to sync; skipping greeter niri sync")
-		return nil
-	}
-
-	greeterDir := "/etc/greetd/niri"
-	greeterGroup := DetectGreeterGroup()
-	if err := runSudoCmd(sudoPassword, "mkdir", "-p", greeterDir); err != nil {
-		return fmt.Errorf("failed to create greetd niri directory: %w", err)
-	}
-	if err := runSudoCmd(sudoPassword, "chown", fmt.Sprintf("root:%s", greeterGroup), greeterDir); err != nil {
-		return fmt.Errorf("failed to set greetd niri directory ownership: %w", err)
-	}
-	if err := runSudoCmd(sudoPassword, "chmod", "755", greeterDir); err != nil {
-		return fmt.Errorf("failed to set greetd niri directory permissions: %w", err)
-	}
-
-	dmsTemp, err := os.CreateTemp("", "dms-greeter-niri-dms-*.kdl")
-	if err != nil {
-		return fmt.Errorf("failed to create temp file: %w", err)
-	}
-	defer os.Remove(dmsTemp.Name())
-
-	if _, err := dmsTemp.WriteString(content); err != nil {
-		_ = dmsTemp.Close()
-		return fmt.Errorf("failed to write temp niri config: %w", err)
-	}
-	if err := dmsTemp.Close(); err != nil {
-		return fmt.Errorf("failed to close temp niri config: %w", err)
-	}
-
-	dmsPath := filepath.Join(greeterDir, "dms.kdl")
-	if err := backupFileIfExists(sudoPassword, dmsPath, ".backup"); err != nil {
-		return fmt.Errorf("failed to backup %s: %w", dmsPath, err)
-	}
-	if err := runSudoCmd(sudoPassword, "install", "-o", "root", "-g", greeterGroup, "-m", "0644", dmsTemp.Name(), dmsPath); err != nil {
-		return fmt.Errorf("failed to install greetd niri dms config: %w", err)
-	}
-
-	mainContent := fmt.Sprintf("%s\ninclude \"%s\"\n", config.NiriGreeterConfig, dmsPath)
-	mainTemp, err := os.CreateTemp("", "dms-greeter-niri-main-*.kdl")
-	if err != nil {
-		return fmt.Errorf("failed to create temp file: %w", err)
-	}
-	defer os.Remove(mainTemp.Name())
-
-	if _, err := mainTemp.WriteString(mainContent); err != nil {
-		_ = mainTemp.Close()
-		return fmt.Errorf("failed to write temp niri main config: %w", err)
-	}
-	if err := mainTemp.Close(); err != nil {
-		return fmt.Errorf("failed to close temp niri main config: %w", err)
-	}
-
-	mainPath := filepath.Join(greeterDir, "config.kdl")
-	if err := backupFileIfExists(sudoPassword, mainPath, ".backup"); err != nil {
-		return fmt.Errorf("failed to backup %s: %w", mainPath, err)
-	}
-	if err := runSudoCmd(sudoPassword, "install", "-o", "root", "-g", greeterGroup, "-m", "0644", mainTemp.Name(), mainPath); err != nil {
-		return fmt.Errorf("failed to install greetd niri main config: %w", err)
-	}
-
-	if err := ensureGreetdNiriConfig(logFunc, sudoPassword, mainPath); err != nil {
-		logFunc(fmt.Sprintf("⚠ Warning: Failed to update greetd config for niri: %v", err))
-	}
-
-	logFunc(fmt.Sprintf("✓ Synced niri greeter config (%d input, %d output, %d cursor, %d debug) to %s", extractor.inputCount, extractor.outputCount, extractor.cursorCount, extractor.debugCount, dmsPath))
-	return nil
-}
-
-func ensureGreetdNiriConfig(logFunc func(string), sudoPassword string, niriConfigPath string) error {
-	configPath := "/etc/greetd/config.toml"
-	data, err := os.ReadFile(configPath)
-	if os.IsNotExist(err) {
-		logFunc("ℹ greetd config not found; skipping niri config wiring")
-		return nil
-	}
-	if err != nil {
-		return fmt.Errorf("failed to read greetd config: %w", err)
-	}
-
-	lines := strings.Split(string(data), "\n")
-	updated := false
-	for i, line := range lines {
-		trimmed := strings.TrimSpace(line)
-		if !strings.HasPrefix(trimmed, "command") {
-			continue
-		}
-
-		parts := strings.SplitN(trimmed, "=", 2)
-		if len(parts) != 2 {
-			continue
-		}
-
-		command := strings.Trim(strings.TrimSpace(parts[1]), "\"")
-		if !strings.Contains(command, "dms-greeter") {
-			continue
-		}
-		if !strings.Contains(command, "--command niri") {
-			continue
-		}
-		command = stripConfigFlag(command)
-		command = stripCacheDirFlag(command)
-		command = strings.TrimSpace(command + " --cache-dir " + GreeterCacheDir)
-
-		newCommand := fmt.Sprintf("%s -C %s", command, niriConfigPath)
-		idx := strings.Index(line, "command")
-		leading := ""
-		if idx > 0 {
-			leading = line[:idx]
-		}
-		lines[i] = fmt.Sprintf("%scommand = \"%s\"", leading, newCommand)
-		updated = true
-		break
-	}
-
-	if !updated {
-		return nil
-	}
-
-	tmpFile, err := os.CreateTemp("", "greetd-config-*.toml")
-	if err != nil {
-		return fmt.Errorf("failed to create temp greetd config: %w", err)
-	}
-	defer os.Remove(tmpFile.Name())
-
-	if _, err := tmpFile.WriteString(strings.Join(lines, "\n")); err != nil {
-		_ = tmpFile.Close()
-		return fmt.Errorf("failed to write temp greetd config: %w", err)
-	}
-	if err := tmpFile.Close(); err != nil {
-		return fmt.Errorf("failed to close temp greetd config: %w", err)
-	}
-
-	if err := runSudoCmd(sudoPassword, "mv", tmpFile.Name(), configPath); err != nil {
-		return fmt.Errorf("failed to update greetd config: %w", err)
-	}
-
-	logFunc(fmt.Sprintf("✓ Updated greetd config to use niri config %s", niriConfigPath))
-	return nil
-}
-
-func backupFileIfExists(sudoPassword string, path string, suffix string) error {
-	if _, err := os.Stat(path); os.IsNotExist(err) {
-		return nil
-	} else if err != nil {
-		return err
-	}
-
-	backupPath := fmt.Sprintf("%s%s-%s", path, suffix, time.Now().Format("20060102-150405"))
-	if err := runSudoCmd(sudoPassword, "cp", path, backupPath); err != nil {
-		return err
-	}
-	return runSudoCmd(sudoPassword, "chmod", "644", backupPath)
-}
-
-func (s *niriGreeterSync) processFile(filePath string) error {
-	absPath, err := filepath.Abs(filePath)
-	if err != nil {
-		return fmt.Errorf("failed to resolve path %s: %w", filePath, err)
-	}
-
-	if s.processed[absPath] {
-		return nil
-	}
-	s.processed[absPath] = true
-
-	data, err := os.ReadFile(absPath)
-	if err != nil {
-		return fmt.Errorf("failed to read %s: %w", absPath, err)
-	}
-
-	doc, err := kdl.Parse(strings.NewReader(string(data)))
-	if err != nil {
-		return fmt.Errorf("failed to parse KDL in %s: %w", absPath, err)
-	}
-
-	baseDir := filepath.Dir(absPath)
-	for _, node := range doc.Nodes {
-		name := node.Name.String()
-		switch name {
-		case "include":
-			if err := s.handleInclude(node, baseDir); err != nil {
-				return err
-			}
-		case "input":
-			if s.inputNode == nil {
-				s.inputNode = node
-				s.inputNode.Children = dedupeCursorChildren(s.inputNode.Children)
-				s.nodes = append(s.nodes, node)
-			} else if len(node.Children) > 0 {
-				s.inputNode.Children = mergeInputChildren(s.inputNode.Children, node.Children)
-			}
-			s.inputCount++
-		case "output":
-			key := outputNodeKey(node)
-			if existing, ok := s.outputNodes[key]; ok {
-				*existing = *node
-			} else {
-				s.outputNodes[key] = node
-				s.nodes = append(s.nodes, node)
-			}
-			s.outputCount++
-		case "cursor":
-			if s.cursorNode == nil {
-				s.cursorNode = node
-				s.cursorNode.Children = dedupeCursorChildren(s.cursorNode.Children)
-				s.nodes = append(s.nodes, node)
-				s.cursorCount++
-			} else if len(node.Children) > 0 {
-				s.cursorNode.Children = mergeCursorChildren(s.cursorNode.Children, node.Children)
-			}
-		case "debug":
-			s.nodes = append(s.nodes, node)
-			s.debugCount++
-		}
-	}
-
-	return nil
-}
-
-func mergeCursorChildren(existing []*document.Node, incoming []*document.Node) []*document.Node {
-	if len(incoming) == 0 {
-		return existing
-	}
-
-	indexByName := make(map[string]int, len(existing))
-	for i, child := range existing {
-		indexByName[child.Name.String()] = i
-	}
-
-	for _, child := range incoming {
-		name := child.Name.String()
-		if idx, ok := indexByName[name]; ok {
-			existing[idx] = child
-			continue
-		}
-		indexByName[name] = len(existing)
-		existing = append(existing, child)
-	}
-
-	return existing
-}
-
-func dedupeCursorChildren(children []*document.Node) []*document.Node {
-	if len(children) == 0 {
-		return children
-	}
-
-	var result []*document.Node
-	indexByName := make(map[string]int, len(children))
-	for _, child := range children {
-		name := child.Name.String()
-		if idx, ok := indexByName[name]; ok {
-			result[idx] = child
-			continue
-		}
-		indexByName[name] = len(result)
-		result = append(result, child)
-	}
-
-	return result
-}
-
-func mergeInputChildren(existing []*document.Node, incoming []*document.Node) []*document.Node {
-	if len(incoming) == 0 {
-		return existing
-	}
-
-	indexByName := make(map[string]int, len(existing))
-	for i, child := range existing {
-		indexByName[child.Name.String()] = i
-	}
-
-	for _, child := range incoming {
-		name := child.Name.String()
-		if idx, ok := indexByName[name]; ok {
-			existing[idx] = child
-			continue
-		}
-		indexByName[name] = len(existing)
-		existing = append(existing, child)
-	}
-
-	return existing
-}
-
-func outputNodeKey(node *document.Node) string {
-	if len(node.Arguments) > 0 {
-		return strings.Trim(node.Arguments[0].String(), "\"")
-	}
-	return ""
-}
-
-func (s *niriGreeterSync) handleInclude(node *document.Node, baseDir string) error {
-	if len(node.Arguments) == 0 {
-		return nil
-	}
-
-	includePath := strings.Trim(node.Arguments[0].String(), "\"")
-	if includePath == "" {
-		return nil
-	}
-
-	fullPath := includePath
-	if !filepath.IsAbs(includePath) {
-		fullPath = filepath.Join(baseDir, includePath)
-	}
-
-	if _, err := os.Stat(fullPath); os.IsNotExist(err) {
-		return nil
-	} else if err != nil {
-		return fmt.Errorf("failed to stat include %s: %w", fullPath, err)
-	}
-
-	return s.processFile(fullPath)
-}
-
-func (s *niriGreeterSync) render() string {
-	if len(s.nodes) == 0 {
-		return ""
-	}
-
-	var builder strings.Builder
-	for _, node := range s.nodes {
-		_, _ = node.WriteToOptions(&builder, document.NodeWriteOptions{
-			LeadingTrailingSpace: true,
-			NameAndType:          true,
-			Depth:                0,
-			Indent:               []byte("    "),
-			IgnoreFlags:          false,
-		})
-		builder.WriteString("\n")
-	}
-
-	return builder.String()
-}
-
-func ConfigureGreetd(dmsPath, compositor string, logFunc func(string), sudoPassword string) error {
-	configPath := "/etc/greetd/config.toml"
-
-	backupPath := fmt.Sprintf("%s.backup-%s", configPath, time.Now().Format("20060102-150405"))
-	if err := backupFileIfExists(sudoPassword, configPath, ".backup"); err != nil {
-		return fmt.Errorf("failed to backup greetd config: %w", err)
-	}
-	if _, err := os.Stat(configPath); err == nil {
-		logFunc(fmt.Sprintf("✓ Backed up existing config to %s", backupPath))
-	}
-
-	greeterUser := DetectGreeterUser()
-
-	var configContent string
-	if data, err := os.ReadFile(configPath); err == nil {
-		configContent = string(data)
-	} else if os.IsNotExist(err) {
-		configContent = `[terminal]
-vt = 1
-
-[default_session]
-`
-	} else {
-		return fmt.Errorf("failed to read greetd config: %w", err)
-	}
-
-	wrapperCmd := resolveGreeterWrapperPath()
-
-	compositorLower := strings.ToLower(compositor)
-	commandValue := fmt.Sprintf("%s --command %s --cache-dir %s", wrapperCmd, compositorLower, GreeterCacheDir)
-	if dmsPath != "" {
-		commandValue = fmt.Sprintf("%s -p %s", commandValue, dmsPath)
-	}
-
-	commandLine := fmt.Sprintf(`command = "%s"`, commandValue)
-	newConfig := upsertDefaultSession(configContent, greeterUser, commandLine)
-
-	tmpFile, err := os.CreateTemp("", "greetd-config-*.toml")
-	if err != nil {
-		return fmt.Errorf("failed to create temp greetd config: %w", err)
-	}
-	defer os.Remove(tmpFile.Name())
-
-	if _, err := tmpFile.WriteString(newConfig); err != nil {
-		_ = tmpFile.Close()
-		return fmt.Errorf("failed to write temp greetd config: %w", err)
-	}
-	if err := tmpFile.Close(); err != nil {
-		return fmt.Errorf("failed to close temp greetd config: %w", err)
-	}
-
-	if err := runSudoCmd(sudoPassword, "mkdir", "-p", "/etc/greetd"); err != nil {
-		return fmt.Errorf("failed to create /etc/greetd: %w", err)
-	}
-
-	if err := runSudoCmd(sudoPassword, "install", "-o", "root", "-g", "root", "-m", "0644", tmpFile.Name(), configPath); err != nil {
-		return fmt.Errorf("failed to install greetd config: %w", err)
-	}
-
-	logFunc(fmt.Sprintf("✓ Updated greetd configuration (user: %s, command: %s)", greeterUser, commandValue))
-	return nil
-}
-
-func stripConfigFlag(command string) string {
-	for _, flag := range []string{" -C ", " --config "} {
-		idx := strings.Index(command, flag)
-		if idx == -1 {
-			continue
-		}
-
-		before := command[:idx]
-		after := command[idx+len(flag):]
-
-		switch {
-		case strings.HasPrefix(after, `"`):
-			if end := strings.Index(after[1:], `"`); end != -1 {
-				after = after[end+2:]
-			} else {
-				after = ""
-			}
-		default:
-			if space := strings.Index(after, " "); space != -1 {
-				after = after[space:]
-			} else {
-				after = ""
-			}
-		}
-
-		command = strings.TrimSpace(before + after)
-	}
-
-	return command
-}
-
-func stripCacheDirFlag(command string) string {
-	fields := strings.Fields(command)
-	if len(fields) == 0 {
-		return strings.TrimSpace(command)
-	}
-
-	filtered := make([]string, 0, len(fields))
-	for i := 0; i < len(fields); i++ {
-		token := fields[i]
-		if token == "--cache-dir" {
-			if i+1 < len(fields) {
-				i++
-			}
-			continue
-		}
-		if strings.HasPrefix(token, "--cache-dir=") {
-			continue
-		}
-		filtered = append(filtered, token)
-	}
-
-	return strings.Join(filtered, " ")
-}
-
-// getDebianOBSSlug returns the OBS repository slug for the running Debian version.
-func getDebianOBSSlug(osInfo *distros.OSInfo) string {
-	versionID := strings.ToLower(osInfo.VersionID)
-	codename := strings.ToLower(osInfo.VersionCodename)
-	prettyName := strings.ToLower(osInfo.PrettyName)
-
-	if strings.Contains(prettyName, "sid") || strings.Contains(prettyName, "unstable") ||
-		codename == "sid" || versionID == "sid" {
-		return "Debian_Unstable"
-	}
-	if versionID == "testing" || codename == "testing" {
-		return "Debian_Testing"
-	}
-	if versionID != "" {
-		return "Debian_" + versionID // "Debian_13"
-	}
-	return "Debian_Unstable"
-}
-
-// getOpenSUSEOBSRepoURL returns the OBS .repo file URL for the running openSUSE variant.
-func getOpenSUSEOBSRepoURL(osInfo *distros.OSInfo) string {
-	const base = "https://download.opensuse.org/repositories/home:AvengeMedia:danklinux"
-	var slug string
-	switch osInfo.Distribution.ID {
-	case "opensuse-leap":
-		v := osInfo.VersionID
-		if v != "" && !strings.Contains(v, ".") {
-			v += ".0" // "16" → "16.0"
-		}
-		if v == "" {
-			v = "16.0"
-		}
-		slug = v
-	case "opensuse-slowroll":
-		slug = "openSUSE_Slowroll"
-	default: // opensuse-tumbleweed || unknown version
-		slug = "openSUSE_Tumbleweed"
-	}
-	return fmt.Sprintf("%s/%s/home:AvengeMedia:danklinux.repo", base, slug)
-}
-
-func runSudoCmd(sudoPassword string, command string, args ...string) error {
-	var cmd *exec.Cmd
-
-	if sudoPassword != "" {
-		fullArgs := append([]string{command}, args...)
-		quotedArgs := make([]string, len(fullArgs))
-		for i, arg := range fullArgs {
-			quotedArgs[i] = "'" + strings.ReplaceAll(arg, "'", "'\\''") + "'"
-		}
-		cmdStr := strings.Join(quotedArgs, " ")
-
-		cmd = distros.ExecSudoCommand(context.Background(), sudoPassword, cmdStr)
-	} else {
-		cmd = exec.Command("sudo", append([]string{command}, args...)...)
-	}
-
-	cmd.Stdout = os.Stdout
-	cmd.Stderr = os.Stderr
-	return cmd.Run()
-}
-
-func checkSystemdEnabled(service string) (string, error) {
-	cmd := exec.Command("systemctl", "is-enabled", service)
-	output, _ := cmd.Output()
-	return strings.TrimSpace(string(output)), nil
-}
-
-func DisableConflictingDisplayManagers(sudoPassword string, logFunc func(string)) error {
-	conflictingDMs := []string{"gdm", "gdm3", "lightdm", "sddm", "lxdm", "xdm", "cosmic-greeter"}
-	for _, dm := range conflictingDMs {
-		state, err := checkSystemdEnabled(dm)
-		if err != nil || state == "" || state == "not-found" {
-			continue
-		}
-		switch state {
-		case "enabled", "enabled-runtime", "static", "indirect", "alias":
-			logFunc(fmt.Sprintf("Disabling conflicting display manager: %s", dm))
-			if err := runSudoCmd(sudoPassword, "systemctl", "disable", dm); err != nil {
-				logFunc(fmt.Sprintf("⚠ Warning: Failed to disable %s: %v", dm, err))
-			} else {
-				logFunc(fmt.Sprintf("✓ Disabled %s", dm))
-			}
-		}
-	}
-	return nil
-}
-
-// EnableGreetd unmasks and enables greetd, forcing it over any other DM.
-func EnableGreetd(sudoPassword string, logFunc func(string)) error {
-	state, err := checkSystemdEnabled("greetd")
-	if err != nil {
-		return fmt.Errorf("failed to check greetd state: %w", err)
-	}
-	if state == "not-found" {
-		return fmt.Errorf("greetd service not found; ensure greetd is installed")
-	}
-	if state == "masked" || state == "masked-runtime" {
-		logFunc("  Unmasking greetd...")
-		if err := runSudoCmd(sudoPassword, "systemctl", "unmask", "greetd"); err != nil {
-			return fmt.Errorf("failed to unmask greetd: %w", err)
-		}
-		logFunc("  ✓ Unmasked greetd")
-	}
-	logFunc("  Enabling greetd service (--force)...")
-	if err := runSudoCmd(sudoPassword, "systemctl", "enable", "--force", "greetd"); err != nil {
-		return fmt.Errorf("failed to enable greetd: %w", err)
-	}
-	logFunc("✓ greetd enabled")
-	return nil
-}
-
-func EnsureGraphicalTarget(sudoPassword string, logFunc func(string)) error {
-	cmd := exec.Command("systemctl", "get-default")
-	output, err := cmd.Output()
-	if err != nil {
-		logFunc(fmt.Sprintf("⚠ Warning: could not get default systemd target: %v", err))
-		return nil
-	}
-	current := strings.TrimSpace(string(output))
-	if current == "graphical.target" {
-		logFunc("✓ Default target is already graphical.target")
-		return nil
-	}
-	logFunc(fmt.Sprintf("  Setting default target to graphical.target (was: %s)...", current))
-	if err := runSudoCmd(sudoPassword, "systemctl", "set-default", "graphical.target"); err != nil {
-		return fmt.Errorf("failed to set graphical target: %w", err)
-	}
-	logFunc("✓ Default target set to graphical.target")
-	return nil
-}
-
-// AutoSetupGreeter performs the full non-interactive greeter setup
-func AutoSetupGreeter(compositor, sudoPassword string, logFunc func(string)) error {
-	if IsGreeterPackaged() && HasLegacyLocalGreeterWrapper() {
-		return fmt.Errorf("legacy manual wrapper detected at /usr/local/bin/dms-greeter; " +
-			"remove it before using packaged dms-greeter: sudo rm -f /usr/local/bin/dms-greeter")
-	}
-
-	logFunc("Ensuring greetd is installed...")
-	if err := EnsureGreetdInstalled(logFunc, sudoPassword); err != nil {
-		return fmt.Errorf("greetd install failed: %w", err)
-	}
-
-	dmsPath := ""
-	if !IsGreeterPackaged() {
-		detected, err := DetectDMSPath()
-		if err != nil {
-			return fmt.Errorf("DMS installation not found: %w", err)
-		}
-		dmsPath = detected
-		logFunc(fmt.Sprintf("✓ Found DMS at: %s", dmsPath))
-	} else {
-		logFunc("✓ Using packaged dms-greeter (/usr/share/quickshell/dms-greeter)")
-	}
-
-	logFunc("Setting up dms-greeter group and permissions...")
-	if err := SetupDMSGroup(logFunc, sudoPassword); err != nil {
-		logFunc(fmt.Sprintf("⚠ Warning: group/permissions setup error: %v", err))
-	}
-
-	logFunc("Copying greeter files...")
-	if err := CopyGreeterFiles(dmsPath, compositor, logFunc, sudoPassword); err != nil {
-		return fmt.Errorf("failed to copy greeter files: %w", err)
-	}
-
-	logFunc("Configuring greetd...")
-	greeterPathForConfig := ""
-	if !IsGreeterPackaged() {
-		greeterPathForConfig = dmsPath
-	}
-	if err := ConfigureGreetd(greeterPathForConfig, compositor, logFunc, sudoPassword); err != nil {
-		return fmt.Errorf("failed to configure greetd: %w", err)
-	}
-
-	logFunc("Synchronizing DMS configurations...")
-	if err := SyncDMSConfigs(dmsPath, compositor, logFunc, sudoPassword); err != nil {
-		logFunc(fmt.Sprintf("⚠ Warning: config sync error: %v", err))
-	}
-
-	logFunc("Configuring authentication...")
-	if err := sharedpam.SyncAuthConfig(logFunc, sudoPassword, sharedpam.SyncAuthOptions{}); err != nil {
-		return fmt.Errorf("failed to sync authentication: %w", err)
-	}
-
-	logFunc("Checking for conflicting display managers...")
-	if err := DisableConflictingDisplayManagers(sudoPassword, logFunc); err != nil {
-		logFunc(fmt.Sprintf("⚠ Warning: %v", err))
-	}
-
-	logFunc("Enabling greetd service...")
-	if err := EnableGreetd(sudoPassword, logFunc); err != nil {
-		return fmt.Errorf("failed to enable greetd: %w", err)
-	}
-
-	logFunc("Ensuring graphical.target as default...")
-	if err := EnsureGraphicalTarget(sudoPassword, logFunc); err != nil {
-		logFunc(fmt.Sprintf("⚠ Warning: %v", err))
-	}
-
-	logFunc("✓ DMS greeter setup complete")
-	return nil
-}