PGSimCity: A 3D Visualization of How PostgreSQL Works
PGSimCity - How PostgreSQL Works

I built an early prototype called PGSimCity to visualize the PostgreSQL engine in 3D as it loads city code. This model is unreviewed and likely contains inaccuracies in both the simulation and explanations. If you spot errors, please open an issue or submit a pull request on GitHub to help improve the project.
It almost certainly contains inaccuracies in both the model and explanations.
- layoric
I love what is trying to be done here. Some feedback to improve would be to cut out a lot of the noise with the "Take tour". There are too many boxes and things changing on the screen to get a sense of what is happening. Also make it interactive rather than automatically switch onto the next subject. Being a passive observer to so much information trying to be conveyed is very confusing.
I really do like these kinds of approaches to showing the inner workings of different kinds of tech, so think this is on the good path to being a very useful tool, but needs some focus rather than more data/graphs/info boxes.
- narmiouh
I imagined as soon I saw the initial visual that I would somehow be able to enter a query and it would walk me through the flow through the entire system starting from input parsing to all the way to delivering output and perhaps along the way understand some of the autonomous processes that happen in parallel that aren't query specific but run constantly.
What others are saying - fantastic attempt, but don't know where to start or where to end.
- notachatbot123
Considering that it has been vibe-coded with not even 48 hours passed: Is this truthful and accurate at all? Or will it lead to false conclusions and anti-knowledge?
- Curtis_Guan
Understanding how scheduling works inside a database used to require numerous architecture diagrams to explain. I was amazed when I saw PGSimCity — it presents such a complex technical implementation process in such an engaging way. Since it's already open‑source, I think the same idea can be reused in other domains, such as cloud computing, Kubernetes, and so on.
- arjie
I can't believe "Rendering The First Frame..." is not "Reticulating Splines..." :)
Cool UI.