Thanks a lot, Anand. Quite obviously, there is a lot to learn about the Frappé framework.
Two questions: Is it possible to transmit a Redis password to an external Redis server that I could use as broker instead of the local one? (This would do away with one unnecessary local duplication of services 
!)
Also, can I server ERPNext from a sub-URI? This would reduce costs for a wildcard or multi-domain certificate.
Any thoughts and hints? Hugely appreciated. Once done, I will send you FreeBSD installation instructions for your peruse. Phew.
Bests from Vietnam,
Chris