nostr:npub1f6a33pfyp67y8llhunlhrf855xm47n3fdqymvxfj7yx78c6vqf4scxpnql nostr:npub18qdpy73ygsxgeg0p7qg6kxzry5hpn3cp4fsfhdw9a89arv5vx0psyg9564 do you have to configure some form of limiting concurrency, or does it handle fork and merge of databases?