message: Make transfers and accounts optional in config
diff: @@ -4,7 +4,9 @@ use serde::{Deserialize, Serialize};
  #[derive(Debug, Clone, Serialize, Deserialize)]
  pub struct Config {
  + #[serde(default)]
  pub transfers: Vec<Transfer>,
  + #[serde(default)]
  pub accounts: Vec<AccountConfig>,
  #[serde(default)]
  pub only_listed_validators: bool,
  