Validate correction configuration for lottery solo mining

[fxfactorial]

Doing lottery mining for fun and I'm not sure if this is a correct config - is there some sanity check the gateway can provide?

{
  "bitcoind": {
    "rpcuser": "...",
    "rpcpassword": "...",
    "rpcurl": "...",
    "notify_fallback": true
  },
  "api": {
    "listen_port": ...,
    "admin_password": "...",
    "modify_conf": false
  },
  "mining": {
    "pool_address": "...",
    "coinbase_tag_primary": "...",
    "coinbase_tag_secondary": "...",
    "coinbase_unique_id": ...
  },
  "stratum": {
    "listen_port": ...,
    "vardiff_min": 16384,
    "vardiff_target_shares_min": 1,
    "share_stale_seconds": 60,
    "max_threads": 2,
    "max_clients": 2,
    "max_clients_per_thread": 2
  },
  "datum": {
    "pooled_mining_only": false,
    "pool_host": ""
  },
  "logger": {
    "log_level_console": 2
  }
}

Does the vardiff/share_stale even matter for lottery single mining?