let stringtie =
  installable_tool
    Machine.Tool.Default.stringtie
    ~url:"https://github.com/gpertea/stringtie/archive/v1.2.2.tar.gz"
    ~install_program:(make_and_copy_bin "stringtie")
    ~init_program:add_to_dollar_path
    ~witness:(witness_file "stringtie")