Master Coding Skills &
System Design.

Learn CSS fundamentals — selectors, specificity, the box model (margin, border, padding, content), display types, and the cascade.

Write meaningful commit messages, use conventional commits, and amend commits.

Learn PHP functions — parameters, return values, default parameters, and variable scope.

Learn how to create, insert, remove, and modify HTML elements using jQuery — append, prepend, before, after, remove, clone, and wrap.

Learn touch, cp, mv, rm, mkdir — file and directory manipulation.

Learn B-Tree, hash, composite, and covering indexes — when each type helps.

Master Python control flow — if/elif/else, for loops with range, while loops, break, continue, and list comprehensions.

Learn JSONB operators, GIN indexes, jsonb_set, and performance patterns.

Learn load balancer types, algorithms (round-robin, least connections), and health checks.