People are welcome to use Rust for applications programming, but systems programming is where Rust brings the most to the table (memory safety without a GC was

People are welcome to use Rust for applications programming, but systems programming is where Rust brings the most to the table (memory safety without a GC was barely thought possible), and where development focus is: trade-offs are made with systems problems in mind, not application problems. This is reflected in many APIs through-out the ecosystem, which give fine control but require a lot of manual explicitness. IO is no different.