Demystifying Rust Async: Building Your Own Future and Executor from Scratch
·1988 words·10 mins
If you have been working with Rust for a while, you rely heavily on tokio or async-std. By 2025, these runtimes have become incredibly mature, handling everything from networking to file I/O with impressive efficiency. However, for a Senior Rust Developer, treating the async runtime as a “black box” is a liability.