PGSimCity
Interactive 3D visualization of PostgreSQL internals and behavior
Visit nikolays.github.io ↗What is PGSimCity?
PGSimCity is an educational tool that visualizes how PostgreSQL works by representing its internals as an explorable 3D city. Users can follow queries through the system, investigate performance issues like vacuum blockades, and observe how memory, checkpoints, and replication affect database behavior. The project includes guided investigations, a diagnostic interface, and a machine view for running real SQL queries.
Designed for developers and database administrators learning PostgreSQL internals, PGSimCity runs in a browser with WebGL2 and requires no installation. According to the project documentation, it was built using Claude AI coding tools. The visualization is a model with scaled numbers to make internals observable, not a production monitoring tool.
Momentum
Daily activity over the last 30 days: upvotes, unique visits, new GitHub stars and Hacker News points.
How do we know it's vibe coded?
vibetrend discovered PGSimCity automatically. Evidence: GitHub NikolayS/PGSimCity; repo has AGENTS.md, CLAUDE.md. View source.
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