Simulating organic city growth in the browser forced me to confront a specific problem: dynamic graph mutation fights against Rust’s strict ownership model. This session walks through the engineering behind Edo Alkebulan, a procedural engine that uses fractal L-systems to generate climate-resilient infrastructure.

The hardest part wasn’t the math; it was building a deterministic event scheduler without relying on Arc Mutex T. I’ll show how I replaced lock-based coordination with arena allocation and typed indices to solve contention, and what tradeoffs that introduced. We’ll also look at the specific compiler flags and code changes required to shrink a Bevy-based Wasm binary for low-bandwidth environments. You’ll leave with practical patterns for structuring a multi-crate workspace and isolating a no_std math kernel.