August 3, 2026
Fearless rewrite or Rust theatre?
How do you rewrite C/C++ projects to Rust?
Rust rewrite dreams meet comment-section eye rolls and AI slop accusations
TLDR: The article says companies should move old C and C++ software to Rust slowly, not with a giant rewrite, because it can improve safety without breaking everything. Commenters were far more interested in roasting the piece as AI-generated fluff and mocking shallow “rewrites” that win praise without changing much.
JetBrains tried to make a big practical case for moving old C and C++ software into Rust: don’t burn everything down, start small, swap in safer pieces gradually, and avoid breaking the stuff your business depends on. On paper, it’s sensible. Rust is being sold here as the calmer, safer modern option for aging code that’s expensive to maintain. Big companies like Google have helped make that pitch feel less risky, and the article leans hard on the idea that better tools, more experienced developers, and even AI helpers have made the leap less scary.
But the real fireworks were in the comments, where readers basically turned the release into a roast. The loudest reaction? This reads like AI-generated sludge, with multiple commenters dunking on the disclaimer and saying they could tell immediately. One person sneered that the piece was "obvious AI slop," while another said it’s hard to understand a point when it feels "made up by AI." Ouch.
Then came the rewrite cynics. One commenter mocked the classic tech victory lap: keep the giant old engine, rewrite only the easy outer shell in Rust, then collect applause online for a heroic migration. Another dropped the funniest drive-by of the bunch, joking about a Rust rewrite of a WireGuard proxy where the only obvious win was that key generation got faster. And for longtime JetBrains fans, there was some nostalgia-fueled side-eye too: what happened to the company that built lovingly crafted coding tools, and why does this feel like content-farm energy instead? In other words, the article wanted to talk strategy; the internet wanted to talk credibility.
Key Points
- •The article presents C and C++ to Rust migration as a practical engineering strategy focused on safety, maintainability, and modernization rather than blanket rewrites.
- •It says the safest approach for many production systems is incremental migration, starting with isolated modules and integrating Rust into existing build and release workflows.
- •The article cites Google as publishing data that Rust adoption improves safety by reducing memory-safety vulnerabilities and defect rates relative to C++ predecessors.
- •It identifies broader Rust expertise, more mature tooling, easing hiring concerns, and AI assistance as factors making Rust adoption less risky than in earlier years.
- •The article states that migration should be driven by business value, with the strongest candidates being costly-to-maintain, performance-sensitive codebases.