diff --git a/src/zynq_checker.py b/src/zynq_checker.py
index 1936a66..7f21130 100644
--- a/src/zynq_checker.py
+++ b/src/zynq_checker.py
@@ -11,6 +11,7 @@ from __future__ import annotations
 import os
 import re
 import subprocess
+import tempfile
 from dataclasses import dataclass, field
 from pathlib import Path
 from typing import Callable
@@ -88,7 +89,6 @@ def check_zynq_jtag(config: Config, callback: Callable | None = None) -> ZynqChe
 
     # Find vivado executable via Xilinx root scan
     vivado_path = get_vivado_path(
-        vitis_path=getattr(config, "vitis_path", ""),
         xilinx_root=getattr(config, "xilinx_path", ""),
     )
     if not vivado_path:
@@ -104,7 +104,7 @@ def check_zynq_jtag(config: Config, callback: Callable | None = None) -> ZynqChe
 
     # Create temporary TCL script
     tcl_content = _build_jtag_query_tcl()
-    tcl_path = Path("/tmp/zynq_jtag_check_{}.tcl".format(os.getpid()))
+    tcl_path = Path(tempfile.gettempdir()) / f"zynq_jtag_check_{os.getpid()}.tcl"
     try:
         tcl_path.write_text(tcl_content)