fix: prevent OS Command Injection

myice/myice.py

@@ -418,11 +418,13 @@ def schedule(
 
 
 def os_open(file: str) -> None:
+    import subprocess
+
     if os.uname().sysname == "Linux":
-        os.system(f"xdg-open {file}")
+        subprocess.run(["xdg-open", file])
     else:
         print(f"Opening file {file}", file=sys.stderr)
-        os.system(f"open {file}")
+        subprocess.run(["open", file])
 
 
 def extract_players(pdf_file: Path) -> List[str]: