Alex Snowgirl

Modern applications rarely do only one thing at a time. They call APIs, query databases, read files, send notifications, process messages, and wait for external services. If every operation runs one after another, the application often spends most of its time waiting instead of doing useful work.

PostgreSQL is one of the strongest default database choices for modern backend systems. It combines relational modeling, ACID transactions, rich SQL support, JSONB, extensibility, and a mature ecosystem.