The PERN Stack

PERN is for developers who looked at MERN and said 'I love everything about this except the part where my data has no schema.' PostgreSQL brings actual relational integrity — foreign keys, constraints, the works — while Express and Node.js handle the server side and React makes the frontend sparkle. It's the responsible adult version of the JavaScript full-stack, chosen by teams who've been burned by MongoDB's 'eh, just throw it in a document' approach one too many times.