Thanks, I will look at your guide today. With Iobroker I also used InfluxDB. However, through HA I became aware of TimescaleDB ( https://community.home-assistant.io/t/home-assistant-add-on-postgresql-timescaledb/198176 ). Since I wanted to switch from SQLite to MariaDB or Postgres anyway, this way I only need one database and not two. Do you see anything that speaks against TimescaleDB? The arguments for TimescaleDB actually sounded pretty good.