Last week was my last week as an employee of Basho, next week is my first week working for Amazon/AWS. So this week I’m relaxing by watching the MIT/SICP lectures while reading the book.
Welcome to Amazon! What team are you on?
This  vagrant setup made it easy to experiment with a five node cluster. Deployment into Chef also now easy. 
This is fantastic. Postgres is one step closer to replacing Mongo as my document store o choice.
Does this get you any closer?
FWIW, if you’re trying to find a “MongreSQL” then mongres seems to be a reasonable start at the MongoDB wire protocol and behavior for PostgreSQL servers. It uses plv8 and the ‘json’ datatype (could easily use jsonb).