News for hackers. Stuff that matters.

A comment on Microsoft agentically ports Copilot runtime to Rust for $120K. Parent comment

Re:Microsoft agentically ports Copilot runtime to Rust for $... by brewmarche on Sunday September 20, 2026 @08:11AM (#49775022)
Until recently the .NET garbage collector used to be a single 30,000+ lines C++ file. And it was maintained by one person if I remember correctly.
[ Parent | on HN ]
Re:Microsoft agentically ports Copilot runtime to Rust for $... by tecoholic on Sunday September 20, 2026 @06:15PM (#49780652)
Amazed and horrified at the same time.
[ Parent | on HN ]
Re:Microsoft agentically ports Copilot runtime to Rust for $... by brewmarche on Monday September 21, 2026 @11:39AM (#49788700)
Just checked it and I underestimated. Just before the split it was at 54k LOC: <https://github.com/dotnet/runtime/blob/b96f3cc738f7fca9474fb...>

I’ve also read that a first version of the file came from a Common Lisp to C++ code generation step: <https://news.ycombinator.com/item?id=23295041>

[ Parent | on HN ]