btcpayserver-docker/docker-compose-generator/docker-fragments/opt-save-storage.yml

version: "3"

services:
  bitcoind:
    environment:
      # If you don't use Lightning Network, use opt-save-store-xxs instead
      # This save about 1 years of block, your lightning node won't be able to see channel created 1 year since the time you start it.
      BITCOIN_EXTRA_ARGS: prune=100000