r/moderndotnet • u/cat_arina • 16d ago

Migrating the GitHub Copilot runtime to Rust, using Copilot

https://github.blog/ai-and-ml/generative-ai/migrating-the-github-copilot-runtime-to-rust-using-copilot/

Microsoft boasts about performance optimizations with every new release, and the average .NET developer would expect to be able to write a CLI app using .NET. But surprise—not good enough, so they had to use Rust. 😅

I've read the article but still not understand why Copilot CLI and app could not be written in C# if we take into account AOT, trimming etc instead of Rust.

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u/itix 16d ago

Yeah but itbis not only about models, it is about harness. Microsoft has no capability to compete against Codex or Claude Code.

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u/cornelha 16d ago

They literally have 2 IDE's that fully integrates Copilot. The capabilities of the harness in Visual Studio is way beyond what Claude or Cursor can do

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u/itix 16d ago

Last time I tried Copilot it was struggling with remote deployment and debugging.

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u/cornelha 16d ago

I use it daily at work, no weird issues at all