For anyone running Nostream relay with already tuned postgresql.conf using [PGtune](https://pgtune.leopard.in.ua/) and the `DB_MAX_POOL_SIZE` configured right, but still running into the below error, downgrading to v1.16.0 resolves it for me:

`Unable to acquire connection. Please increase DB_MAX_POOL_SIZE, DB_ACQUIRE_CONNECTION_TIMEOUT and tune postgresql.conf to make use of server's resources.`

Issue is tracked on GitHub [here](https://github.com/Cameri/nostream/issues/145)