Add PostgreSQL installation

Description

This issue does not include a description.

Contributor guide

Tech stack

postgresql

Domain

database

Issue type

feature

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

2

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

1-3 hours

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

stale

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

mostly clear

Prerequisites

Basic command line knowledgemacOS environment

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

60

Research direction

The issue is to add PostgreSQL installation instructions to the dev setup repository. Since the body is empty, first review existing guides in the repo (e.g., for MySQL or Redis) to understand the expected format. Then create a new Markdown file or script following the repository's style, covering installation via Homebrew and basic configuration. Consider linking to official PostgreSQL documentation for additional context. There are no comments or PRs to reference, so start by examining the directory structure and existing installation scripts.