Iván
Mendoza

A visualizer for Advent of Code's private leaderboards, featuring a podium, comparisons between participants, and statistics.

Challenge

Access private data from Advent of Code without exposing the session cookie or generating unnecessary requests.

Solution

• Server-side route handler to retrieve and normalize data.
• 15-minute cache and revalidation controlled by SWR.
• Podium, member details, Versus mode, and statistics dashboard.

Result

A comprehensive experience for exploring individual performance and comparing participants while keeping the data confidential on the server.

An API that analyzes class schedules from academic PDFs and returns available slots by day in a structured format.

Challenge

Convert timetables with variable structures into useful information without storing user documents.

Solution

• In-memory PDF processing from a Base64-encoded file.
• Validation of headers and structure before extracting data.
• Normalization of intervals to calculate available space.

Result

Two simple endpoints: one validates the document, and the other returns the available time slots from Monday through Friday as JSON.

A goal-based savings system that originated at a hackathon and evolved into a deployable Flask application.

Challenge

Turn an initial prototype into a more maintainable foundation, with persistence, sessions, and reproducible deployment.

Solution

• Log, access, profile, deposit, withdrawal, and goal flows.
• Refactoring persistence to SQLAlchemy.
• Environment-specific configuration and Docker container with persistent data.

Result

An early project that demonstrates evolution: from a hackathon prototype to an application with a clearer architecture and deployment.