Codegen tooling was originally in a separate repository, https://github.com/uw-midsun/codegen-tooling-msxiv, because back in the MSXII days, firmware, telemetry, and other systems stored in separate repositories needed to download the codegen tooling files. This is also why codegen tooling generated not only C header files but also Go and TypeScript.
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We’ve also dropped the Go toolchain since we’re not using it, so there shouldn’t be any more nasties about needing to update Go.
Thanks Raiyan Sayeed for merging codegen!