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A practical guide to understanding GraphQL in system design — how it compares to REST, when to use it, and the key concepts behind building flexible and efficient APIs.

A concise reference of key numbers every engineer should know for system design interviews and rough capacity estimations — from latency benchmarks to storage calculations.

Agents, state spaces, goal tests, path costs & more

🚀 A single tool to replace pip, pip-tools, pipx, poetry, pyenv, twine, virtualenv, and more.

Restarting a server to see changes reflected call kill velocity when working. Enable Hot Reloading to see changes to the app reflected from your code without the need for a server Restart

Create an auditing system for enterprise applications which tracks user requests, resources touched & action taken. Reuse logic by leveraging hooks so that code is clean & concise. By utilizing middlewares, events & closures we're able to capture the details of requests on all our resources without duplicating code.

Decouple, distribute, and scale: A message queue lets your app handle tasks asynchronously, improving performance, reliability, and system flexibility.

How to add Light/Dark mode to a Flutter application quick and easy using Flutter's built in Provider & Notification modules. Allow users to change the app's theme as well

A walkthrough of pair trading, portfolio construction, and mean-variance optimization in quant finance.

A reference guide to the most important symbols, their original names, and meanings in quantitative finance.

Learn how premium flow trends help traders identify optimal entry and exit points for assets by analyzing market sentiment and momentum.

Learn what slippage is, why it happens, and how traders can minimize its impact when buying or selling in financial markets.

Explore the differences between institutional and retail investors, including their characteristics, strategies, and impact on financial markets.

Learn the difference between primary and secondary markets in finance, including how securities are issued and traded, and why both are important for investors.

Learn the meaning of upside and downside in trading—how these terms help assess potential gains and risks before entering a position.

Discover what a warrant is in finance, how it works, and how it compares to options. Learn about exercise price, expiration, and the role warrants play in trading and investing.

Essential calculus concepts and techniques for success in quantitative finance.

Overview of the essential mathematics—linear algebra, statistics, calculus, and more—for success in quantitative finance.

A comprehensive guide to Implied Volatility Rank (IVR), its calculation, significance in options trading, and practical applications.

How quant traders use premium flow and z scores to spot unusual options activity and trading opportunities.