If you’re doing some super intensive data processing or have specialist use cases then yeah, sure feel free to write that part in Rust, C or whatever you like.
That’s literally what this package is about. Unlocking that use case for you although Dart also has bindings for Go, Java, Kotlin, C, and Swift so you can take your pick.
But the reality is that Dart compiles down to native code on all platforms and is not going to be slower in any way that actually matters or is noticeable to users in the vast vast vast majority of scenarios and the productivity hit you take from moving to Rust or C from Dart is also an order of magnitude slower.
That’s literally what this package is about. Unlocking that use case for you although Dart also has bindings for Go, Java, Kotlin, C, and Swift so you can take your pick.
But the reality is that Dart compiles down to native code on all platforms and is not going to be slower in any way that actually matters or is noticeable to users in the vast vast vast majority of scenarios and the productivity hit you take from moving to Rust or C from Dart is also an order of magnitude slower.