Function optional_path_arg

app/cli/args.cpp:85–90

}

std::optional<std::filesystem::path> optional_path_arg(int argc, char ** argv, const std::string & name) {
    if (const auto value = find_arg(argc, argv, name)) {
        return std::filesystem::path(*value);
    }
    return std::nullopt;
}

engine::core::BackendType parse_backend(const std::string & value) {
    if (value == "cpu") {