I'm looking forward to rewriting i2pd in Rust/Zig

[ghost]

https://github.com/ziglang/zig
Zig is smaller and faster than Rust

[Vort]

C++ language of i2pd won't change.
But you may make your own fork of course.
However, i2pd is complex, so rewriting won't be easy.

[x64x2]

make i2pd less bloat and so simple

[Vort]

Simplification is even harder task than just rewriting.

[anikey-from-i2p]

For Rust you may look at the ire project: https://github.com/str4d/ire

I haven't heard of a Zig i2p daemon project.

I think if you want another language, you need to create another project, not rewrite the existing one.