I would rather check urls with the following method:

  echo -e -n "https://іnstall.example-clі.dev" | python -c 'exec("""import sys, unicodedata\nfor ch in sys.stdin.read():\n  try:\n    print (ch, " ", unicodedata.name(ch))\n  except ValueError:\n    print ("codepoint ", ord(ch))\n""")'

instead of putting my trust in the hundreds of crates in this tool's Cargo.lock not having a supply chain attack.