Very cool! I'm working on something similar but am taking it much slower with a focus on accuracy. Mine recompiles into Golang to take advantage of built-in SIMD support.

I've been building the tooling around the PS2 binaries and hope to have a standalone PSS player out soon that can play PSS files as they are encoded, via simulated renderer, and via in-game engine renderer. The future is so bright with LLMs!