alt Hacker News+1 - I was making exactly this argument in other threads. But I have a slightly different take on how software should be written.
Translating zig -> rust is more complex than writing a JPEG parser in static python and then lowering it into zig and rust differently using idiomatic construct for each language.
Towards that end, I've created a parser for a dialect of python which is suitable for this purpose. It should maintain compatibility with the vast majority of python code out there, while picking up some rust/zig features that make translation easier. JPEG parser included in the assets of the skill for a flavor.