// Before we do anything else, we choose a default log level and initialize

    // logging. The simple reason is that the next thing we want to do is read

    // configuration (which contains the actual log level to use), but note that

    // *this might fail* in which case *the user expects a log output*.

    let level = log::Level::Error;

    let home = profile::home()?;

    let options = Options::from_env()?;

    let config = options.config.unwrap_or_else(|| home.config());

    let mut config = profile::Config::load(&config)?;

    let level = options.log.unwrap_or_else(|| config.node.log.into());

    // Only now the log level obtained via configuration becomes active.

    log::set_max_level(level.to_level_filter());