This site creates GitHub-style contribution graphs based on your Letterboxd movie history. Here's the process:
- Data Collection
It retrieves your public Letterboxd RSS feed, which includes your watched movies and their dates (keep in mind that RSS feeds may only show recent entries).
- Data Processing
The data is organized by date and week, allowing it to calculate how many films you watched each weak and day.
- Graph Generation
An SVG graph is generated, where each cell represents a day, and the color indicates the number of movies watched on that day.