You ask ChatGPT for example this:

show me config for Bareos server with bareos-dir and bareos-fd roles on FreeBSD system and bareos-sd on Linux (as this will be needed to use storage backend to put/get backups from S3 buckets)

... and after it replies you tailor the answer to your needs like:

- show me exact configs for everything

- we will use latest FreeBSD 14-STABLE with PkgBase instead

- we will use free and open source Bareos repo instead of paid one

Etc. Just one of thousands examples.