This is just a way to measure how people compare random country flags to each other, with some ranking and statistics to come later.
This uses postgres as a backend, setup is simple, as the postgres user run these commands under psql:
CREATE USER flags WITH ENCRYPTED PASSWORD 'password';
CREATE DATABASE flags OWNER flags;
ALTER ROLE flags SET client_encoding TO 'utf8';
ALTER ROLE flags SET default_transaction_isolation TO 'read committed';
ALTER ROLE flags SET timezone TO 'UTC';
GRANT ALL PRIVILEGES ON DATABASE flags TO flags;