persistence true
persistence_location /mosquitto/data/
log_dest stdout

listener 1883
listener 9001
protocol websockets

# Anonymous access is fine on a trusted LAN. To require credentials:
#   1. set allow_anonymous false
#   2. add "password_file /mosquitto/config/passwd"
#   3. docker compose exec mosquitto mosquitto_passwd -c /mosquitto/config/passwd <user>
allow_anonymous true