DOCUMENT
THE WHOLE
SYSTEM.
A practical reference for programming, DSA, frameworks, databases, APIs, Linux, networking, testing, security, deployment, and the architecture behind CodeDev itself.
Results for “sql”
Developer learning roadmap
A practical order for learning programming, DSA, web development, databases, systems, testing, and production deployment.
Flask and Django frameworks
How Flask and Django organize Python web applications, where each fits, and the production concerns both frameworks share.
SQL, PostgreSQL, and Redis
Relational modeling, SQL queries, indexes, transactions, PostgreSQL production use, and Redis for shared ephemeral state.
CodeDev system architecture
How the current CodeDev by Edward website is structured: Flask application factory, blueprints, templates, database, media storage, and public/admin boundaries.
CodeDev database and data model
The current PostgreSQL/SQLAlchemy entities and the relationships that power projects, releases, media, leads, settings, analytics, users, and audit history.
CodeDev deployment and operations
Render/Docker production configuration, PostgreSQL, Cloudinary, Redis/Valkey, migrations, uptime monitoring, health checks, recovery, and deployment verification.