# Ethereum network: holesky (default test instance) or mainnet
NETWORK=holesky

# Checkpoint sync URL — used ONCE on first sync. Must expose the heavy
# /eth/v2/debug/beacon/states/finalized endpoint (most generic beacon APIs
# do not — use a dedicated checkpoint-sync provider).
# Community list: https://eth-clients.github.io/checkpoint-sync-endpoints/
#
# For mainnet, switch to one of:
#   https://beaconstate.info
#   https://sync-mainnet.beaconcha.in
#   https://mainnet-checkpoint-sync.attestant.io
TRUSTED_NODE_URL=https://checkpoint-sync.holesky.ethpandaops.io

# Nimbus NAT mode. Default "any" tries UPnP/PMP/auto-detect (often fails on cloud).
# For a stable public node, set explicit external IP:
#   NAT=extip:1.2.3.4
# Find your server's public IPv4 with:  curl -s ifconfig.me
NAT=any
