diff --git a/euri_mklive/cli.py b/euri_mklive/cli.py
index ce6bf35..ffe3772 100644
--- a/euri_mklive/cli.py
+++ b/euri_mklive/cli.py
@@ -85,11 +85,20 @@ def build_iso(config: Path, output: Path, keep_rootfs: bool) -> None:
 @click.option("-o", "--output", type=click.Path(path_type=Path), default=None, help="Output directory")
 @click.option("--keep-rootfs", is_flag=True, help="Don't remove rootfs after ISO generation")
 @click.option("-y", "--yes", is_flag=True, help="Skip confirmation prompts")
-def interactive(mode: str | None, output: Path | None, keep_rootfs: bool, yes: bool) -> None:
+@click.option("--config", "config_file", type=click.Path(path_type=Path), default=None,
+              help="Load config from file (used by sudo re-exec)")
+def interactive(mode: str | None, output: Path | None, keep_rootfs: bool, yes: bool,
+                config_file: Path | None) -> None:
     """Launch interactive TUI — select distro, packages, and build."""
     from .tui import run_interactive, banner as tui_banner
 
-    cfg = run_interactive()
+    # load config from file (sudo re-exec) or run TUI
+    if config_file and config_file.exists():
+        import json
+        cfg = json.loads(config_file.read_text())
+        config_file.unlink(missing_ok=True)
+    else:
+        cfg = run_interactive()
 
     # override mode if flag given
     if mode:
@@ -110,12 +119,18 @@ def interactive(mode: str | None, output: Path | None, keep_rootfs: bool, yes: b
     console = Console()
 
     # check mode and re-exec if needed
-    import shutil as _shutil
     if cfg["_mode"] == "root" and os.geteuid() != 0:
         console.print("[bold yellow]Root mode selected but not root. Re-executing with sudo...[/]")
         import subprocess as _sp
         import site
-        args = [sys.executable, "-m", "euri_mklive", "interactive", "--root"]
+        import json
+
+        # save config to temp file for sudo re-exec
+        cfg_file = Path(tempfile.mktemp(suffix=".json", prefix="euri-cfg-"))
+        cfg_file.write_text(json.dumps(cfg))
+
+        args = [sys.executable, "-m", "euri_mklive", "interactive", "--root",
+                "--config", str(cfg_file)]
         if keep_rootfs:
             args.append("--keep-rootfs")
         if output: