This repository is the central specification and test suite hub for the RealWorld project (a Medium.com clone demo app). It does not contain any runnable application code. Instead, it defines the API contract via an OpenAPI spec (specs/api/openapi.yml), provides comprehensive test suites in Hurl and Bruno formats for backend validation, and a shared Playwright E2E test suite for frontend validation. It also includes a shared CSS theme (assets/theme/styles.css), documentation built with Astro/Starlight (docs/), and SVG logo generation scripts. The repository serves as the single source of truth that all RealWorld implementations (over 100 backends and frontends) must conform to. Its architecture is that of a specification and validation toolkit, not a deployable service. Key entry points are the Makefile for running tests and generating Bruno collections, and the test runner scripts in specs/api/. External dependencies include Hurl, Bruno, Playwright, Bun, and Astro.