Blog

Tools

4 articles

2026.05.03

Why every analyst should understand APIs (not just developers)

If you work with Fed rates, Banxico exchange rates, or World Bank life expectancy, you already consume APIs. Understanding what happens between your request and your data makes you a better analyst: you can diagnose when something fails, optimize when something is slow, and build when you need something custom. This project demonstrates it with real data and interactive labs.

APIsNext.jsTypeScriptFREDBanxico

Tools

2026.03.13

B-Trees: the simple structure behind every query you have ever run

PostgreSQL, MySQL, SQLite, and most modern file systems use B-trees as the core structure for their indexes. Understanding why changes how you think about query design and the real cost of a lookup.

Data StructuresPostgreSQLOptimizationRustDatabases

Tools

2026.03.05

Dashboards with React: Why Build Analytical Reports in Code

Two exploratory analysis dashboards (Airbnb CDMX and Olist E-Commerce) as a case study for why Next.js and Recharts are a serious alternative to Power BI and Tableau for production-grade analytical reports.

ReactNext.jsRechartsdashboardsdata-analytics

Tools

2026.02.01

Interactive Math Visualizations

Interactive demonstrations of fundamental calculus concepts: the sin(x)/x limit, derivative of sine, and Euler's formula. With manipulable SVG visualizations.

mathvisualizationcalculusinteractive

Tools