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Antoine Büsch
@antoinebusch.dev

A few years ago I wrote a basic Gameboy emulator in #rust [1]. I'm glad I did it "by hand", and it was a fun rabbit hole for my brain to hyperfocus on for a while, but once it worked well enough to play Zelda or Super Mario Land 2, I quickly moved on to something else. [1]: github.com/abusch/gb-rs

github.comGitHub - abusch/gb-rs: Yet another gameboy emulator in RustYet another gameboy emulator in Rust. Contribute to abusch/gb-rs development by creating an account on GitHub.
Antoine Büsch
@antoinebusch.dev

But these past couple of weeks I've been using Claude to polish it up, and it's been surprisingly satisfying, in a different kind of way. Also, Opus 5.5 has been shockingly good at it: discovering test roms on my system, building headless runners for testing, figuring out obscure bugs in seconds...

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Antoine Büsch
@antoinebusch.dev

It's now orders of magnitude more performant, more correct, supports most MBCs, supports save/restore state, has a `RetroArch` frontend (thanks to the `libretro-core` crate I discovered recently), custom palettes, and more...