The facts as presented from the Bun side show a lack of technical merit for the rewrite. This shouldn't be surprising, because rewrites are bad engineering, in most cases.

The Bun project was started in Zig by someone with a lack of experience using the language, despite the massive scope and complexity, and was effectively a rewrite from another language in the first place.

From the Bun post:

> Bun started as a line-for-line port of esbuild's JavaScript & TypeScript transpiler from Go to Zig.

Then, a few years later, the entire codebase was thrown out to do another rewrite in another language.

What is there to address?

Porting TypeScript to Go in 7.0 doesn’t seem like bad engineering. Neither does this port, given that that Bun started out in a somewhat buggy state.