[Feature Request] Support for Multiple Database Selection

[mexirica]

Tell us about your feature request

Add the ability for users to select more than one database during project configuration. Currently, only a single database can be chosen, which limits flexibility for projects requiring a combination of different technologies, such as Postgres for relational storage and Redis for in-memory caching.

Disclaimer

• I agree

[Ujstor]

The same feature was proposed in #235 and #292. At the time, we dismissed the implementation. There is a slight chance that we can accept this proposal, but only if #253 and #311 are implemented properly. Then, there will be a basis to showcase the DB cache configuration.